Fluorine silica gel injection edgeless product assembly mold

Abstract

The invention discloses a fluorine silica gel injection edgeless product assembly mold, and relates to the technical field of mold structures, the fluorine silica gel injection edgeless product assembly mold comprises a runner assembly, a degumming device, a forming assembly and an auxiliary blanking assembly which are sequentially arranged from top to bottom, and the forming assembly comprises an injection molding upper mold plate and an injection molding middle mold plate which are sequentially arranged from top to bottom; the injection molding upper mold plate comprises a glue injection channel and an exhaust channel, the glue injection channel and the exhaust channel are both communicated with a mold cavity of the injection molding middle mold plate, the injection molding middle mold plate comprises a mold core upper plate and a mold core lower plate, the mold core upper plate and the mold core lower plate are detachably connected, and the mold core upper plate and the mold core lower plate are connected at a parting position. The exhaust passage is arranged on the upper injection molding template, exhaust is performed during glue injection to prevent flash, and the middle injection molding template adopts a splicing structure to prevent flash at a parting position.

Description

Technical Field

[0001] The invention belongs to the technical field of mold structures, and in particular relates to a fluorosilicone injection edgeless product assembly mold. Background Art

[0002] Silicone and fluorosilicone products cannot be injection molded using conventional injection equipment due to their special nature. The flat plate vulcanization production process is prone to produce a lot of flash, especially in batch production. Manual cleaning wastes man-hours. At the same time, fine flash is difficult to clean, which reduces the quality of the finished product and even affects the product's efficacy. Therefore, it is necessary to prevent the generation of flash during the production process and remove the flash in batches after it is generated to produce edgeless products. Summary of the invention

[0003] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a fluorosilicone injection edgeless product assembly mold to solve the problems mentioned in the background technology.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A fluorosilicone injection edgeless product assembly mold comprises a flow channel component, a degumming device, a molding component and an auxiliary blanking component which are arranged in sequence from top to bottom. The molding component comprises an injection molding upper template and an injection molding middle template which are arranged in sequence from top to bottom. The injection molding upper template comprises a glue injection channel and an exhaust channel, both of which are connected to the cavity of the injection molding middle template. The injection molding middle template comprises a core upper plate and a core lower plate, the core upper plate and the core lower plate are detachably connected, and the core upper plate and the core lower plate are connected at a parting position.

[0006] As a preferred technical solution, the injection molding middle template also includes a lifting frame, and the lower plate of the mold core is installed in the lifting frame.

[0007] As an optimal technical solution, a connecting groove connecting the glue injection channel and the adjacent exhaust channel is also provided on the injection molding upper template. The connecting groove is connected to the glue injection port of the degumming device. The glue injection channel and the adjacent exhaust channel are respectively connected to the forming port of the degumming device. The degumming device can be detachably installed between the runner assembly and the injection molding upper template.

[0008] As a preferred technical solution, the flow channel assembly includes a transfer plate for changing the direction of the rubber material, and the flow channel of the transfer plate is connected to the glue injection port.

[0009] As a preferred technical solution, a waste groove is provided on the transfer plate, the waste groove is connected to the material opening in a one-to-one correspondence, and the cross-section of the waste groove is a trapezoid that is wide at the top and narrow at the bottom.

[0010] As a preferred technical solution, the runner assembly also includes an upper runner template and a middle runner template arranged in sequence from top to bottom; a silo is opened in the center of the top of the middle runner template, and a plurality of groups of inverted cone-shaped sockets are provided at the bottom of the silo, and a runner is opened at the lowest point of the socket, and the number of sockets, runners, injection channels and cavities are equal and connected, and a plurality of groups of inverted cone-shaped plugs are installed at the bottom of the upper runner template, and the plugs are plugged in one-to-one with a gap between the plugs and the sockets.

[0011] As a preferred technical solution, a heat insulation plate and a lower template for isolating high temperature are arranged from top to bottom between the middle template and the transfer plate. The flow channels on the middle template, the heat insulation plate and the lower template are connected one by one and are connected to the flow channels of the transfer plate.

[0012] As a preferred technical solution, the auxiliary unloading component includes a top drop groove 1 opened on the injection molding middle template, a top drop groove 2 opened on the injection molding lower template, a pad and a dropper, the top drop groove 1 and the top drop groove 2 are both connected to the cavity, and the top length of the dropper is greater than the sum of the lengths of the top drop groove 1 and the top drop groove 2.

[0013] As an optimal technical solution, a plurality of positioning holes are provided on the pad, the bottom ends of the shedders are plugged into the positioning holes one by one, and the positioning holes are connected to the top drop grooves one by one.

[0014] Beneficial Effects

[0015] An exhaust duct is provided on the injection molding upper template, and exhaust is carried out while injecting glue to prevent flash. The injection molding middle template adopts a splicing structure to prevent flash from being generated at the parting position. The degumming device can be detachably installed between the runner assembly and the injection molding upper template. The connecting groove integrates the waste materials in the injection channel and the adjacent exhaust duct. If there is flash, the injection channel and the adjacent exhaust duct connect the flash and are integrated with the waste materials in the injection port and the forming port. After the production is completed, the runner assembly and the degumming device rise, and the degumming device can be taken out to simultaneously remove all the waste materials and flash, avoiding manual removal one by one, improving efficiency and improving product quality.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an exploded view of a fluorosilicone injection mold for an edgeless product assembly;

[0018] Figure 2 It is a front cross-sectional view of a fluorosilicone injection mold for an edgeless product assembly;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0020] : 1. runner upper template; 11. plug; 2. runner middle template; 21. silo; 22. socket; 3. heat insulation board; 4. runner lower template; 5. transfer plate; 51. waste trough; 6. degumming device; 61. glue injection port; 62. forming port; 7. injection molding upper template; 71. glue injection channel; 72. exhaust channel; 73. connecting groove; 74. upper cavity; 8. injection molding middle template; 81. core upper plate; 82. core lower plate; 83. lifting frame; 84. cavity; 85. top drop groove one; 9. injection molding lower template; 91. top drop groove two; 10. pad; 101. positioning hole; 11. degumming device. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] Example 1

[0023] refer to Figures 1 to 3 The fluorosilicone injection edgeless product assembly mold described in this embodiment includes a runner component, a degumming device 6, a molding component and an auxiliary blanking component arranged in sequence from top to bottom. The molding component includes an injection molding upper template 7, an injection molding middle template 8 and an injection molding lower template 9 arranged in sequence from top to bottom. The injection molding upper template 7 includes a glue injection channel 71 and an exhaust channel 72. The glue injection channel 71 and the exhaust channel 72 are both connected to the cavity 84 of the injection molding middle template 8. The exhaust is performed while the glue is injected to prevent the generation of flash. The injection molding middle template 8 adopts a splicing structure so that no flash is generated at the parting position. Specifically, the injection molding middle template 8 includes a core upper plate 81 and a core lower plate 82. The core upper plate 81 and the core lower plate 82 are detachably connected by bolts, and the core upper plate 81 and the core lower plate 82 are connected at the parting position.

[0024] The injection molding middle template 8 also includes a lifting frame 83 , and the core lower plate 82 is installed in the lifting frame 83 .

[0025] According to the structure of the product, the injection molding upper template 7 also includes an upper cavity 74. In actual production, the upper cavity 74 can be freely set or removed according to the structure of the product itself.

[0026] The injection molding upper template 7 is also provided with a connecting groove 73 connecting the injection channel 71 and the adjacent exhaust channel 72. The connecting groove 73 is connected to the injection port 61 of the degumming device 6. The injection channel 71 and the adjacent exhaust channel 72 are respectively connected to the forming port 62 of the degumming device 6. The degumming device 6 is detachably installed between the runner assembly and the injection molding upper template 7. The connecting groove 73 integrally forms the waste materials in the injection channel 71 and the adjacent exhaust channel 72. If there is flash, the injection channel 71 and the adjacent exhaust channel 72 connect the flash and are integrally formed with the waste materials in the injection port 61 and the forming port 62. After the production is completed, the runner assembly and the degumming device 6 rise, and the degumming device 6 is taken out to synchronously remove all the waste materials and flash, avoiding manual removal one by one, improving efficiency and improving product quality.

[0027] Preferably, the flow channel assembly includes a transfer plate 5 for changing the direction of the rubber material. The flow channel of the transfer plate 5 is connected to the glue injection port 61. A waste groove 51 is provided on the transfer plate 5. The waste groove 51 is connected to the forming port 62 in a one-to-one correspondence, and the cross-section of the waste groove 51 is a trapezoidal shape that is wide at the top and narrow at the bottom. When the degumming device 6 and the injection molding upper template 7 are separated, the waste groove 51 that is wide at the top and narrow at the bottom is more convenient for taking away the waste in the connecting groove 73.

[0028] It is worth noting that the flow channel of the transfer plate 5 can be changed according to actual needs so that the glue flows to the specified injection point. After cooperating with the flow channel lower template 4, a variety of molds can be used to achieve product diversification.

[0029] The flow channel assembly also includes a flow channel upper template 1, a flow channel middle template 2, a heat insulation board 3 and a flow channel lower template 4 which are arranged in sequence from top to bottom. The flow channel lower template 4 is located above the transfer plate 5. A material bin 21 is provided at the center of the top of the flow channel middle template 2. The bottom of the material bin 21 is a plurality of groups of inverted cone-shaped plugs 22. The number of the plugs 22, the injection channels 71, the injection ports 61 and the cavities 84 are equal and connected. A plurality of groups of inverted cone-shaped plugs 11 are installed at the bottom of the flow channel upper template 1. The plugs 11 are plugged in one-to-one with the plugs 22 and there is a gap between the plugs 11 and the plugs 22. A flow channel is provided at the lowest part of the plugs 22. The film is placed in the material bin 21. The flow channel upper template 1 presses the film down to melt it, and the glue flows evenly into the flow channel of each group of plugs 22.

[0030] The runners on the runner middle template 2, the heat insulation board 3, and the runner lower template 4 are connected one by one and are connected to the runner of the transfer plate 5. The temperature of the molten rubber material of the runner upper template 1 and the runner middle template 2 can reach 170 degrees, but the runner lower template 4 as a cold runner needs to be maintained at 60-80 degrees to prevent the rubber material from vulcanizing quickly. Therefore, the heat insulation board 3 is added to isolate the runner lower template 4 from the heat above, accelerate the cooling time, and realize continuous operation.

[0031] When injection molding directly on plastic or metal parts, auxiliary unloading components can be used to help batch unloading and save time. The specific auxiliary unloading components include a top drop groove 85 provided on the injection molding middle template 8, a top drop groove 91 provided on the injection molding lower template 9, a pad 10 and a shedder 11. The top drop groove 85 and the top drop groove 91 are both connected to the cavity 84 and the bottom diameter of the cavity 84 is greater than the diameter of the top drop groove 85. The pad 10 is provided with multiple groups of positioning holes 101. The bottom end of the shedder 11 is plugged into the positioning holes 101 one by one to ensure the accurate position of the shedder 11. The positioning holes 101 are connected to the top drop groove 91 one by one. The top length of the shedder 11 is greater than the sum of the lengths of the top drop groove 85 and the top drop groove 91. During injection molding, the rigid parts are installed in the mold cavity 84. After production is completed, the pad 10 and the lower injection mold plate 9 are separated, and the ejector 11 is installed on the lower injection mold plate 9. The ejector 11 ejects the product, which is convenient for recycling and saves manpower.

[0032] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fluorosilicone injection mold for an edgeless product assembly, characterized in that: The invention comprises a flow channel assembly, a degumming device (6) and a molding assembly which are arranged in sequence from top to bottom. The molding assembly comprises an injection molding upper template (7) and an injection molding middle template (8) which are arranged in sequence from top to bottom. The injection molding upper template (7) comprises a glue injection channel (71) and an exhaust channel (72). Both the glue injection channel (71) and the exhaust channel (72) are connected to a mold cavity (84) of the injection molding middle template (8). The injection molding middle template (8) comprises a mold core upper plate (81) and a mold core lower plate (82). The mold core upper plate (81) and the mold core lower plate (82) are detachably connected. The mold core upper plate (81) and the mold core lower plate (82) are connected at a parting position.

2. The fluorosilicone injection edgeless product assembly mold according to claim 1, characterized in that: The injection molding middle template (8) also includes a lifting frame (83), and the mold core lower plate (82) is installed in the lifting frame (83).

3. The fluorosilicone injection edgeless product assembly mold according to claim 1, characterized in that: The injection molding upper template (7) is also provided with a connecting groove (73) connecting the glue injection channel (71) and the adjacent exhaust channel (72); the connecting groove (73) is connected to the glue injection port (61) of the degumming device (6); the glue injection channel (71) and the adjacent exhaust channel (72) are respectively connected to the forming port (62) of the degumming device (6); and the degumming device (6) is detachably mounted between the flow channel assembly and the injection molding upper template (7).

4. The fluorosilicone injection edgeless product assembly mold according to claim 3, characterized in that: The flow channel component comprises a transfer plate (5) for changing the direction of the rubber material, and the flow channel of the transfer plate (5) is connected to the rubber injection port (61).

5. The fluorosilicone injection edgeless product assembly mold according to claim 4, characterized in that: A waste material groove (51) is provided on the transfer plate (5), the waste material groove (51) is connected to the material opening (62) in a one-to-one correspondence, and the cross section of the waste material groove (51) is a trapezoidal shape that is wide at the top and narrow at the bottom.

6. The fluorosilicone injection edgeless product assembly mold according to claim 4, characterized in that: The flow channel assembly also includes a flow channel upper template (1) and a flow channel middle template (2) which are arranged in sequence from top to bottom; a material bin (21) is provided at the center of the top of the flow channel middle template (2); a plurality of groups of inverted cone-shaped plug holes (22) are provided at the bottom of the material bin (21); a flow channel is provided at the lowest part of the plug hole (22); the number of the plug holes (22), the flow channel, the injection channel (71) and the cavity (84) are equal and connected; a plurality of groups of inverted cone-shaped plugs (11) are installed at the bottom of the flow channel upper template (1); the plugs (11) and the plug holes (22) are plugged in one-to-one and there is a gap between the plugs (11) and the plug holes (22).

7. The fluorosilicone injection edgeless product assembly mold according to claim 6, characterized in that: A heat insulation plate (3) for isolating high temperature and a flow channel lower template (4) are arranged from top to bottom between the flow channel middle template (2) and the transfer plate (5); the flow channels on the flow channel middle template (2), the heat insulation plate (3) and the flow channel lower template (4) are connected in a one-to-one correspondence and are also connected to the flow channels of the transfer plate (5).

8. The fluorosilicone injection edgeless product assembly mold according to claim 1, characterized in that: The invention also comprises an auxiliary material removal component, which comprises a top drop groove 1 (85) provided on the injection molding middle template (8), a top drop groove 2 (91) provided on the injection molding lower template (9), a pad (10) and a dropper (11), wherein the top drop groove 1 (85) and the top drop groove 2 (91) are both connected to the mold cavity (84), and the top end length of the dropper (11) is greater than the sum of the lengths of the top drop groove 1 (85) and the top drop groove 2 (91).

9. The fluorosilicone injection edgeless product assembly mold according to claim 8, characterized in that: The backing plate (10) is provided with a plurality of positioning holes (101), the bottom ends of the shedders (11) are plugged into the positioning holes (101) one by one, and the positioning holes (101) are connected to the second top drop grooves (91) one by one.

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