Common-mode balanced glue feeding mold structure and forming equipment

Abstract

The utility model relates to a common-mode balanced glue feeding mold structure and forming equipment, the common-mode balanced glue feeding mold structure comprises an upper fixing plate, a splitter plate, a fixed mold plate, a movable mold plate and a lower fixing plate which are sequentially arranged from top to bottom, and the upper fixing plate is provided with a first glue inlet; the splitter plate is provided with a second glue inlet; the first glue inlet and the second glue inlet are formed in different planes; the first glue inlet is communicated with the first mold cavity through the first runner; the second glue inlet is communicated with the second mold cavity through the second runner; and the first mold cavity and the second mold cavity are different in shape and / or volume. By means of the structural design that the second glue inlet is additionally formed in the side face for glue feeding, common-mode balanced glue feeding of the mold is achieved; and meanwhile, through the structural design that the first glue inlet and the second glue inlet are in different surfaces, the two glue inlets can be conveniently connected with a single-glue-inlet glue inlet device respectively, and compared with an existing expensive same-side double-color glue inlet system, the equipment manufacturing or purchasing cost and the later equipment operation and maintenance cost can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a common mold balanced glue feeding mold structure and equipment. Background Art

[0002] Traditional one-mold multi-cavity molds mostly use one glue inlet to feed glue. When co-molding products with large differences, there will be problems with uneven flow of co-molded plastic, resulting in unbalanced glue feeding, which causes deviations in the flow path of the plastic in the mold cavity, and is prone to product surface defects, incorrect dimensions, mold deformation, damage, or stress concentration. Although some existing two-color molds can achieve simultaneous glue feeding from two glue inlets, the existing dual glue feeding device has a complex structure and is expensive, with high maintenance costs in the later stage, which increases production costs. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a common-mode balanced injection mold structure and equipment, wherein the common-mode balanced injection mold structure includes an upper fixed plate, a diverter plate, a fixed mold plate, a movable mold plate and a lower fixed plate arranged in sequence from top to bottom, wherein:

[0004] The upper fixed plate is provided with a first glue inlet; the diverter plate is provided with a second glue inlet; the first glue inlet and the second glue inlet are arranged on different surfaces;

[0005] The first glue inlet is communicated with the first mold cavity through the first flow channel; the second glue inlet is communicated with the second mold cavity through the second flow channel; the first mold cavity and the second mold cavity have different shapes and / or volumes.

[0006] Preferably, the fixed plate includes a first fixed plate and a second fixed plate;

[0007] The first fixed die plate and the second fixed die plate are arranged between the diverter plate and the movable die plate in sequence from top to bottom;

[0008] A first inlet gate is provided between the first runner and the first mold cavity;

[0009] A second inlet gate is provided between the second runner and the second mold cavity;

[0010] The first inlet gate is arranged between the first fixed mold plate and the second fixed mold plate; the second inlet gate is arranged between the second fixed mold plate and the movable mold plate.

[0011] Preferably, the volume of the first mold cavity is greater than the volume of the second mold cavity; the cross-sectional area of ​​the first flow channel is greater than the cross-sectional area of ​​the second flow channel.

[0012] The utility model further provides a device, which adopts any common-mode balanced glue feeding mold structure as above, and also includes a first glue feeding device and a second glue feeding device; the first glue feeding device is arranged on one side of the first glue feeding port, and the first glue feeding device is connected to the first glue feeding port; the second glue feeding device is arranged on one side of the second glue feeding port, and the second glue feeding device is connected to the second glue feeding port.

[0013] The common-mode balanced glue feeding mold structure provided by the utility model realizes the common-mode balanced glue feeding of the mold by adding a second glue feeding port on the side; at the same time, through the structural design of the first glue feeding port and the second glue feeding port being on different surfaces, the two glue feeding ports can be conveniently connected to a single glue feeding port glue feeding device respectively, compared with the existing expensive same-side two-color glue feeding system, the equipment manufacturing or procurement cost and the later equipment operation and maintenance cost can be greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of the common-mode balanced injection mold structure provided by the utility model;

[0015] Figure 2 It is a schematic diagram of the connection between the common-mode balanced glue-feeding mold structure and the first glue-feeding device and the second glue-feeding device;

[0016] Figure 3 for Figure 1 Cross-section of the middle AA;

[0017] Figure 4 It is a schematic structural diagram of a first glue inlet, a second glue inlet, a first flow channel, a second flow channel, a first mold cavity, and a second mold cavity;

[0018] Among them: 10, upper fixed plate; 11, first glue inlet; 20, diverter plate; 21, second glue inlet; 30, fixed mold plate; 31, first fixed mold plate; 32, second fixed mold plate; 40, movable mold plate; 41, first movable mold plate; 42, second movable mold plate; 50, lower fixed plate; 61, first runner; 62, second runner; 71, first mold cavity; 72, second mold cavity; 81, first glue inlet device; 82, second glue inlet device; 91, first gate; 92, second gate. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments. However, the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments are conventional methods unless otherwise specified. The materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The embodiment of the utility model provides a common-mode balanced injection mold structure and equipment, wherein the common-mode balanced injection mold structure includes an upper fixed plate 10, a diverter plate 20, a fixed mold plate 30, a movable mold plate 40 and a lower fixed plate 50 arranged in sequence from top to bottom, wherein:

[0023] The upper fixing plate 10 is provided with a first glue inlet 11; the diverter plate 20 is provided with a second glue inlet 21; the first glue inlet 11 and the second glue inlet 21 are arranged on different surfaces;

[0024] The first glue inlet 11 is communicated with the first mold cavity 71 through the first flow channel 61; the second glue inlet 21 is communicated with the second mold cavity 72 through the second flow channel 62; the first mold cavity 71 and the second mold cavity 72 have different shapes and / or volumes.

[0025] When implementing it, Figure 1 , Figure 2As shown, the common mold balanced injection mold structure includes an upper fixed plate 10, a diverter plate 20, a fixed mold plate 30, a movable mold plate 40 and a lower fixed plate 50 arranged in sequence from top to bottom, wherein: a first flow channel 61 and a second flow channel 62 are formed after the mold is closed between the diverter plate 20, the fixed mold plate 30 and the movable mold plate 40; the fixed mold plate 30 and the movable mold plate 40 are closed to form a first mold cavity 71 and a second mold cavity 72; the upper surface of the upper fixed plate 10 is provided with a first injection port 11; the diverter plate 20 A second glue inlet 21 is provided on the side wall, so that the first glue inlet 11 and the second glue inlet 21 are arranged on different surfaces; the first glue inlet 11 is used to communicate with the first glue inlet device 81, and the first glue inlet 11 is connected to the first mold cavity 71 through the first flow channel 61; the second glue inlet 21 is used to communicate with the second glue inlet device 82, and the second glue inlet 21 is connected to the second mold cavity 72 through the second flow channel 62; the first mold cavity 71 and the second mold cavity 72 are different in shape, size, dimension and / or volume.

[0026] During operation, the first glue feeding device 81 and the second glue feeding device 82 are used for injection molding respectively, so as to realize the fixed mold balanced glue feeding of the first mold cavity 71 and the second mold cavity 72 of different shapes, sizes and / or volumes in the mold; the structural design of the first glue inlet 11 and the second glue inlet 21 on different surfaces can facilitate the connection of the existing two single glue inlet glue feeding devices with the first glue inlet 11 and the second glue inlet 21 respectively, and avoid the problem of the glue feeding structure interfering and affecting the glue feeding caused by the two glue inlets being set on the same surface; thus, the glue feeding balance of the mold during the injection molding process is ensured, so that the plastic flow is more uniform and the product quality is more stable. At the same time, the mold is subjected to more uniform force, and products of different colors can be injected separately, which helps to improve the service life and stability of the mold. Compared with some existing two-color injection molds, the first glue feeding device 81 and the second glue feeding device 82 in the utility model can adopt the existing single glue feeding device. Compared with the existing expensive same-side two-color glue feeding system, it can greatly reduce the equipment manufacturing or procurement cost and the subsequent equipment operation and maintenance cost, which is of great significance to actual production and manufacturing.

[0027] The common-mode balanced glue feeding mold structure provided by the utility model realizes the common-mode balanced glue feeding of the mold by adding a second glue feeding port on the side; at the same time, through the structural design of the first glue feeding port and the second glue feeding port being on different surfaces, the two glue feeding ports can be conveniently connected to a single glue feeding port glue feeding device respectively, compared with the existing expensive same-side two-color glue feeding system, the equipment manufacturing or procurement cost and the later equipment operation and maintenance cost can be greatly reduced.

[0028] Further, the fixed mold plate 30 includes a first fixed mold plate 31 and a second fixed mold plate 32;

[0029] The first fixed die plate 31 and the second fixed die plate 32 are sequentially arranged between the manifold 20 and the movable die plate 40 from top to bottom;

[0030] A first inlet gate 91 is provided between the first runner 61 and the first mold cavity 71;

[0031] A second inlet gate 92 is provided between the second runner 62 and the second mold cavity 72;

[0032] The first inlet gate 91 is disposed between the first fixed mold plate 31 and the second fixed mold plate 32 ; the second inlet gate 92 is disposed between the second fixed mold plate 32 and the movable mold plate 40 .

[0033] Furthermore, the volume of the first mold cavity 71 is greater than the volume of the second mold cavity 72 ; and the cross-sectional area of ​​the first flow channel 61 is greater than the cross-sectional area of ​​the second flow channel 62 .

[0034] When implementing it, Figure 3 , Figure 4 As shown, the fixed mold plate 30 includes a first fixed mold plate 31 and a second fixed mold plate 32; the first fixed mold plate 31 and the second fixed mold plate 32 are sequentially arranged between the manifold plate 20 and the movable mold plate 40 from top to bottom; the upper fixed plate 10, the manifold plate 20, and the first fixed mold plate 31 are molded together to form a first flow channel 61; the first fixed mold plate 31, the second fixed mold plate 32, and the movable mold plate 40 are molded together to form a first mold cavity 71; the upper fixed plate 10, the manifold plate 20, the first fixed mold plate 31, and the second fixed mold plate 32 are molded together to form a second flow channel 62; the second fixed mold plate 32 and the movable mold plate 40 are molded together to form a second mold cavity 72; a first inlet gate 91 is provided between the first flow channel 61 and the first mold cavity 71; a second inlet gate 92 is provided between the second flow channel 62 and the second mold cavity 72;

[0035] The first inlet gate 91 is arranged between the first fixed plate 31 and the second fixed plate 32; the second inlet gate 92 is arranged between the second fixed plate 32 and the movable plate 40; the middle diverter plate 20, the first fixed plate 31, the second fixed plate 32, and the movable plate 40 are all detachably connected. This embodiment can realize the injection molding of molds with different cavity heights by combining the first fixed plate 31, the second fixed plate 32 with the first inlet gate 91 and the second inlet gate 92; at the same time, the first fixed plate 31 and the second fixed plate 32 that can be separated and disassembled can facilitate the cleaning and maintenance of the gate, avoiding the problem of easy blockage of the two gates when the mold is opened or not used for a long time.

[0036] Furthermore, the volume of the first mold cavity 71 is greater than the volume of the second mold cavity 72 ; and the cross-sectional area of ​​the first flow channel 61 is greater than the cross-sectional area of ​​the second flow channel 62 .

[0037] When implementing it, Figure 3As shown, the volume of the first mold cavity 71 is greater than the volume of the second mold cavity 72; the cross-sectional area of ​​the first flow channel 61 is greater than the cross-sectional area of ​​the second flow channel 62. In this embodiment, for the first mold cavity 71 with a larger volume, the first glue feeding device 81 is combined with the first flow channel 61 to achieve the regulation of large glue feeding amount casting, and the first flow channel 61 with a larger cross-section can allow a large amount of glue to enter the first mold cavity 71 quickly; for the second mold cavity 72 with a smaller volume, the second glue feeding device 82 is combined with the second flow channel 62 to achieve small glue feeding amount casting, and the second flow channel 62 with a smaller cross-section can avoid the problem of product defects caused by unbalanced glue feeding due to excessive cross-section. The equipment provided in this embodiment can control the injection glue feeding amount of the two glue feeding ports respectively by combining the cross-sectional area of ​​the first flow channel 61 with the cross-sectional area of ​​the second flow channel 62 and the structure of two sets of glue feeding devices feeding glue separately, so as to further make the mold reach glue feeding balance during the injection molding process.

[0038] Furthermore, if Figure 1 , Figure 2 and Figure 3 As shown, the movable platen 40 includes a first movable platen 41 and a second movable platen 42; the second fixed platen 32, the first movable platen 41, the second movable platen 42, and the lower fixed plate 50 are arranged in sequence from top to bottom; the existing lower fixed plate 50 is usually provided with an ejector structure, which passes through the first movable platen 41 and the second movable platen 42 and can extend to the first mold cavity 71 and the second mold cavity 72 to realize demoulding and ejection of the molding mold. In this embodiment, two movable platen structures can be easily disassembled, thereby facilitating maintenance or repair of the ejector structure.

[0039] An embodiment of the utility model further provides a device adopting any of the common-mode balanced glue feeding mold structures described above, and also includes a first glue feeding device 81 and a second glue feeding device 82; the first glue feeding device 81 is arranged on one side of the first glue feeding port 11 and connected to the first glue feeding port 11; the second glue feeding device 82 is arranged on one side of the second glue feeding port 21, and the second glue feeding device 82 is connected to the second glue feeding port 21.

[0040] When implementing it, Figure 3As shown, the device adopts any common-mode balanced injection mold structure as above, and also includes a first injection device 81 and a second injection device 82; the first injection device 81 and the second injection device 82 are both existing commercial single-inlet injection devices, which will not be described in detail this time; the first injection device 81 is arranged on one side of the first injection port 11 and connected to the first injection port 11; the second injection device 82 is arranged on one side of the second injection port 21, and the second injection device 82 is connected to the second injection port 21. The device provided in this embodiment arranges the first injection device 81 and the second injection device 82 on both sides of the mold to avoid the problem of injection structure interference caused by the two injection ports being arranged on the same surface, thereby ensuring the injection balance of the mold during the injection molding process, making the plastic flow more uniform and the product quality more stable.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A common-mode balanced injection mold structure, characterized in that: It comprises an upper fixed plate (10), a diverter plate (20), a fixed die plate (30), a movable die plate (40) and a lower fixed plate (50) which are arranged in sequence from top to bottom, wherein: The upper fixed plate (10) is provided with a first glue inlet (11); the diverter plate (20) is provided with a second glue inlet (21); the first glue inlet (11) and the second glue inlet (21) are arranged on different surfaces; The first glue inlet (11) is connected to the first mold cavity (71) through a first flow channel (61); the second glue inlet (21) is connected to the second mold cavity (72) through a second flow channel (62); the first mold cavity (71) and the second mold cavity (72) have different shapes and / or volumes.

2. The common-mode balanced injection mold structure according to claim 1, characterized in that: The fixed plate (30) comprises a first fixed plate (31) and a second fixed plate (32); The first fixed die plate (31) and the second fixed die plate (32) are arranged in sequence from top to bottom between the diverter plate (20) and the movable die plate (40); A first inlet gate (91) is provided between the first flow channel (61) and the first mold cavity (71); A second inlet gate (92) is provided between the second flow channel (62) and the second mold cavity (72); The first pouring gate (91) is arranged between the first fixed mold plate (31) and the second fixed mold plate (32); and the second pouring gate (92) is arranged between the second fixed mold plate (32) and the movable mold plate (40).

3. The common-mode balanced injection mold structure according to claim 1 or 2, characterized in that: The volume of the first mold cavity (71) is greater than the volume of the second mold cavity (72); and the cross-sectional area of ​​the first flow channel (61) is greater than the cross-sectional area of ​​the second flow channel (62).

4. A device, characterized in that: The common-mode balanced glue-feeding mold structure according to any one of claims 1 to 3 further comprises a first glue-feeding device (81) and a second glue-feeding device (82); the first glue-feeding device (81) is arranged on one side of the first glue-feeding port (11) and connected to the first glue-feeding port (11); the second glue-feeding device (82) is arranged on one side of the second glue-feeding port (21) and connected to the second glue-feeding port (21).

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