Adjustable foaming mold and control method thereof

Abstract

The present application discloses an adjustable foaming mold and a control method thereof, relating to the field of production and manufacturing technology, wherein the adjustable foaming mold comprises: a mold frame, an upper mold plate, and a lower mold structure, wherein the mold frame is provided with an adjustment channel therethrough; the upper mold plate is provided at the top of the mold frame; the lower mold structure comprises a lower mold plate and an adjustment component, wherein the lower mold plate is provided at the bottom of the mold frame, the adjustment component is provided through the lower mold plate and is slidably provided in the adjustment channel, a foaming area is formed between the adjustment component and the upper mold plate in the adjustment channel, and the adjustment component is provided with a plurality of vacuum holes connected to the foaming area. The present application can adjust the structure and thickness of a local position within the foaming mold, and can also prevent the foaming material from penetrating into the interior of the foaming mold, thereby saving the cost of producing foamed products.

Description

Technical Field

[0001] The present application relates to the field of production and manufacturing technology, and in particular to an adjustable foaming mold and a control method thereof. Background Art

[0002] In the field of injection molding, the process of using movable block adjustment structures to change mold specifications is relatively common, but it has never been applied to foaming mold technology. The reason is that the raw materials of foaming materials are all liquid, and the material is very easy to seep through the assembly gaps of the movable blocks during the foaming process, resulting in serious parting line defects in the product appearance. Therefore, if the foaming mold wants to change the structure and thickness of the product in a certain position, it can only be achieved by modifying the mold. This method cannot realize the formation of different product structures with one foaming mold. For example, if the thickness of the product needs to be reduced or increased in a certain position, different foaming molds need to be developed, which greatly increases the development cost of foaming products. Summary of the Invention

[0003] This application aims to solve at least one of the technical problems existing in the prior art. To this end, this application proposes an adjustable foaming mold and a control method thereof, which can adjust the structure and thickness of a local location within the foaming mold, while also preventing the foaming material from penetrating into the interior of the foaming mold, thereby saving the cost of producing foamed products.

[0004] In a first aspect, the present application provides an adjustable foaming mold, comprising:

[0005] A mold frame, wherein an adjustment channel is provided through the mold frame;

[0006] An upper template, the upper template being arranged on the top of the mold frame;

[0007] The lower mold structure includes a lower mold plate and an adjustment component. The lower mold plate is arranged at the bottom of the mold frame. The adjustment component is passed through the lower mold plate and can be slidably arranged in the adjustment channel. A foaming area is formed between the adjustment component and the upper mold plate in the adjustment channel. The adjustment component is provided with a plurality of vacuum holes connected to the foaming area.

[0008] According to the adjustable foaming mold of the embodiment of the first aspect of the present application, there are at least the following beneficial effects: using the foaming mold provided by the present application, first open the upper template, adjust the position of the adjustment component to change the specifications of the foaming area, then fix the anti-permeability membrane to the top of the mold frame, and form a closed space between the anti-permeability membrane and the adjustment component, then extract the air in the closed space from the vacuum hole on the adjustment component, so that the anti-permeability membrane is in close contact with the inner wall of the adjustment channel in the mold frame and the top of the adjustment component. After the preliminary work is prepared, inject foaming material into the anti-permeability membrane of the adjustment channel; cover the upper template, and the adjustment component is moved close to the upper template to close the mold, and the pressure holding, foaming, and exhausting processes are carried out to finally obtain the product. Through the adjustable foaming mold of the present application, the structure and thickness of the local position in the foaming mold can be adjusted by adjusting the concession, and the foaming material can also be prevented from penetrating into the interior of the foaming mold, saving the cost of producing foamed products.

[0009] According to some embodiments of the first aspect of the present application, the adjustment assembly includes a driving member, a transmission member, a movable block and a first support rod, the driving member is arranged below the lower template, the driving end of the driving member is connected to the transmission member, the transmission member is passed through the lower template, the movable block can be slidably arranged in the adjustment channel, the movable block and the transmission member are connected through the first support rod, and a plurality of vacuum holes are arranged on the movable block.

[0010] According to some embodiments of the first aspect of the present application, an exhaust channel is provided on the mold frame, which is arranged below the movable block and one end of which is connected to the adjustment channel, and the other end of the exhaust channel passes through the side wall of the mold frame.

[0011] According to some embodiments of the first aspect of the present application, the transmission member includes a connecting rod and a push block, the connecting rod is passed through the lower template, the push block is arranged in the adjustment channel, one end of the connecting rod is connected to the driving end of the driving member, and the other end of the connecting rod is connected to the push block, and the push block is connected to the movable block through the first support rod.

[0012] According to some embodiments of the first aspect of the present application, a sealing assembly is provided between the connecting rod and the lower template.

[0013] According to some embodiments of the first aspect of the present application, a plurality of cutting protrusions are provided on a side of the movable block facing the foaming area, and the vacuum holes are provided on the sides of the cutting protrusions.

[0014] According to some embodiments of the first aspect of the present application, a heating pipe is further provided in the mold frame, and the heating pipe is arranged on the side of the foaming area.

[0015] According to some embodiments of the first aspect of the present application, grooves are provided on both sides of the top of the mold frame, and fixing components are provided in the grooves, and the fixing components are used to fix the anti-permeability membrane.

[0016] According to some embodiments of the first aspect of the present application, the system further includes a base and a second support rod, the driving member is arranged on the base, and the upper template is fixed to the base through the second support rod.

[0017] In a second aspect, the present application further provides a method for using an adjustable foaming mold, which is applied to the adjustable foaming mold described in any embodiment of the first aspect, and the method for using comprises:

[0018] Open the upper template and adjust the position of the adjustment component to change the specifications of the foaming area;

[0019] Fixing an anti-permeability membrane on the top of the mold frame so that a closed space is formed between the anti-permeability membrane and the regulating component;

[0020] The air in the enclosed space is extracted from the vacuum hole on the adjustment component so that the anti-permeability membrane is in close contact with the inner wall of the adjustment channel in the mold frame and the top of the adjustment component;

[0021] injecting a foaming material into the anti-permeation membrane of the regulating channel;

[0022] The upper template is covered, and the adjusting component is moved close to the upper template for closing the mold, and the processes of pressure holding, foaming and exhausting are performed to obtain the product.

[0023] According to the method for using the adjustable foaming mold of the second embodiment of the present application, there are at least the following beneficial effects: using the foaming mold provided by the first embodiment of the present application, first open the upper template, adjust the position of the adjustment component to change the specifications of the foaming area, then fix the anti-permeability membrane to the top of the mold frame, and form a closed space between the anti-permeability membrane and the adjustment component, then extract the air in the closed space from the vacuum hole on the adjustment component, so that the anti-permeability membrane is in close contact with the inner wall of the adjustment channel in the mold frame and the top of the adjustment component, after the preliminary work is prepared, inject foaming material into the anti-permeability membrane of the adjustment channel; cover the upper template, and the adjustment component is moved close to the upper template to close the mold, and the pressure holding, foaming, and exhausting processes are performed to finally obtain the product. Through the method for using the adjustable foaming mold of the present application, the structure and thickness of the local position in the foaming mold can be adjusted by adjusting the concession, and the foaming material can also be prevented from penetrating into the interior of the foaming mold, saving the cost of producing foamed products.

[0024] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Additional aspects and advantages of the present application will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0026] Figure 1 This is a schematic structural diagram of an adjustable foaming mold according to one embodiment of the present application;

[0027] Figure 2 For this application Figure 1 A partial enlarged schematic diagram of area A;

[0028] Figure 3 This is a schematic structural diagram of an adjustable foaming mold according to another embodiment of the present application;

[0029] Figure 4 This is a schematic structural diagram of an adjustable foaming mold according to another embodiment of the present application;

[0030] Figure 5 This is a schematic structural diagram of an adjustable foaming mold according to another embodiment of the present application;

[0031] Figure 6 This is a schematic structural diagram of an adjustable foaming mold according to another embodiment of the present application.

[0032] The accompanying figures are as follows:

[0033] Mold frame 100; adjustment channel 110; foaming area 120; exhaust channel 130; exhaust joint 131; heating pipe 140; upper template 200; lower template 310; vacuum hole 320; driving member 330; movable block 340; cutting protrusion 341; first support rod 350; transmission member 360; connecting rod 361; push block 362; sealing assembly 370; base 381; second support rod 382; fixing component 400; pressing plate 410; sealing gasket 420; anti-permeation membrane 500; foaming material 600. DETAILED DESCRIPTION

[0034] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having 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 application and are not to be construed as limiting the present application.

[0035] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application 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 operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0036] In the description of this application, if there is a description of first or second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0037] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0038] First, refer to Figure 1 and Figure 2 The present application provides an adjustable foaming mold, including: a mold frame 100, an upper mold plate 200, and a lower mold structure. The mold frame 100 is provided with an adjustment channel 110; the upper mold plate 200 is arranged at the top of the mold frame 100; the lower mold structure includes a lower mold plate 310 and an adjustment component. The lower mold plate 310 is arranged at the bottom of the mold frame 100, and the adjustment component is passed through the lower mold plate 310 and can be slidably arranged in the adjustment channel 110. A foaming area 120 is formed between the adjustment component and the upper mold plate 200 in the adjustment channel 110, and a plurality of vacuum holes 320 connected to the foaming area 120 are provided on the adjustment component. When using the foaming mold provided by the present application, first open the upper template 200, adjust the position of the adjustment component to change the specifications of the foaming area 120, then fix the anti-permeability membrane 500 on the top of the mold frame 100, and form a closed space between the anti-permeability membrane 500 and the adjustment component, then extract the air in the closed space from the vacuum hole 320 on the adjustment component, so that the anti-permeability membrane 500 is in close contact with the inner wall of the adjustment channel 110 in the mold frame 100 and the top of the adjustment component. After the preliminary work is prepared, inject the foaming material 600 into the anti-permeability membrane 500 of the adjustment channel 110; cover the upper template 200, and adjust the component to the upper template 200 for mold closing, perform pressure maintenance, foaming, and exhaust, and finally obtain the product. Through the adjustable foaming mold of the present application, the structure and thickness of the local position in the foaming mold can be adjusted by adjusting the concession, and the foaming material 600 can also be prevented from penetrating into the interior of the foaming mold, saving the cost of producing foamed products.

[0039] It should be noted that the anti-permeation membrane 500 is a TPU film or a film-coated anti-permeation fabric.

[0040] Continue to refer to Figure 1 It can be understood that the adjustment component includes a driving member 330, a transmission member 360, a movable block 340 and a first support rod 350. The driving member 330 is arranged below the lower template 310. The driving end of the driving member 330 is connected to the transmission member 360. The transmission member 360 is passed through the lower template 310. The movable block 340 can be slidably set in the adjustment channel 110. The movable block 340 and the transmission member 360 are connected through the first support rod 350. Several vacuum holes 320 are set on the movable block 340. The driving end of the driving member 330 is connected to the transmission member 360, so that the transmission member 360, the movable block 340 and the first support rod 350 can be driven to slide in the adjustment channel 110 at the same time. At the same time, the transmission member 360 and the movable block 340 are connected through the first support rod 350, so that a certain interval is formed between the transmission member 360 and the movable block 340, so as to reserve a certain space to discharge the air in the foaming area 120 from the vacuum hole 320 on the movable block 340, so that the anti-permeability membrane 500 placed on the mold frame 100 is adsorbed, thereby being tightly attached to the inner wall of the adjustment channel 110 in the mold frame 100 and the top of the movable block 340, thereby preventing the foaming material 600 from penetrating into the interior of the adjustment channel 110 when pouring.

[0041] Continue to refer to Figure 1 It is understood that the mold frame 100 is provided with an exhaust channel 130, which is located below the movable block 340 and communicates with the adjustment channel 110 at one end. The other end of the exhaust channel 130 extends through the side wall of the mold frame 100. Specifically, an exhaust connector 131 is provided at the other end of the exhaust channel 130. An external vacuum device can be connected to the exhaust connector 131 to exhaust the air in the adjustment channel 110. In other words, the air in the foaming area 120 is expelled from the vacuum hole 320 in the movable block 340, so that the anti-permeability membrane 500 placed on the mold frame 100 is adsorbed and thus closely adheres to the inner wall of the adjustment channel 110 in the mold frame 100 and the top of the movable block 340.

[0042] Continue to refer to Figure 1 It is understood that the transmission member 360 includes a connecting rod 361 and a push block 362. The connecting rod 361 is disposed through the lower mold plate 310, and the push block 362 is disposed within the adjustment channel 110. One end of the connecting rod 361 is connected to the driving end of the driving member 330, and the other end of the connecting rod 361 is connected to the push block 362. The push block 362 is connected to the movable block 340 via the first support rod 350. The connecting rod 361 and the push block 362 form a T-shaped structure. Specifically, the push block 362 is larger than the movable block 340. At least two first support rods 350 are provided, one connected to each side of the bottom of the movable block 340. This makes the pushing force exerted by the push block 362 on the movable block 340 more stable, thereby improving the stability of the movement of the movable block 340.

[0043] It is understandable that a sealing component 370 is provided between the connecting rod 361 and the lower template 310 to prevent some external air from flowing into the adjustment channel 110 or even into the foaming area 120 through the gap between the connecting rod 361 and the lower template 310 during vacuum extraction. The sealing component 370 prevents external air from flowing in, thereby improving the vacuum extraction effect and allowing the anti-permeability membrane 500 to fit more closely to the surface of the movable block 340.

[0044] Reference Figure 1 It can be understood that a plurality of cutting protrusions 341 are provided on the side of the movable block 340 facing the foaming area 120, and the vacuum hole 320 is provided on the side of the cutting protrusion 341. By setting the cutting protrusion 341, the structural shape of the foamed product can be determined, and an integrated cut-off product can be produced at the same time, which is not limited in this application.

[0045] Continue to refer to Figure 1 It is understandable that a heating pipe 140 is further provided in the mold frame 100. The heating pipe 140 is arranged beside the foaming area 120. The heating pipe 140 can be used to increase the temperature in the foaming area 120, which can increase the foaming rate.

[0046] It can be understood that grooves are provided on both sides of the top of the mold frame 100, and a fixing component 400 is provided in the groove. The fixing component 400 is used to fix the anti-permeability membrane 500 to prevent the anti-permeability membrane 500 from shaking during the vacuuming process. Specifically, the fixing component 400 includes a pressing plate 410 and a sealing gasket 420. The two ends of the anti-permeability membrane 500 are respectively placed on the sealing gaskets 420 on both sides, and the sealing gasket 420 is pressed by the pressing plate 410 so that the anti-permeability membrane 500 is fixed between the pressing plate 410 and the sealing gasket 420.

[0047] It can be understood that the adjustable foaming mold provided in the present application also includes a base 381 and a second support rod 382 , the driving member 330 is arranged on the base 381 , and the upper template 200 is fixed to the base 381 through the second support rod 382 .

[0048] Secondly, refer to Figures 3 to 6 The present application also provides a method for using an adjustable foaming mold, which is applied to the adjustable foaming mold of any embodiment of the first aspect, including but not limited to the following steps:

[0049] Step S110: Open the upper template and adjust the position of the adjustment component to change the specifications of the foaming area;

[0050] Step S120: fixing the anti-permeability membrane to the top of the mold frame, and forming a closed space between the anti-permeability membrane and the regulating component;

[0051] Step S130: extracting the air in the enclosed space from the vacuum hole on the regulating assembly so that the anti-permeability membrane is in close contact with the inner wall of the regulating channel in the mold frame and the top of the regulating assembly;

[0052] Step S140: injecting foaming material into the anti-permeation membrane of the regulating channel;

[0053] Step S150: Cover the upper template, adjust the assembly to the upper template and close the mold, perform pressure holding, foaming, and exhaust processes to obtain the product.

[0054] Reference Figure 3 , using the foaming mold provided by the embodiment of the first aspect of the present application, first open the upper template 200, adjust the position of the adjustment component to change the specifications of the foaming area 120, and then fix the anti-permeability membrane 500 on the top of the mold frame 100, and form a closed space between the anti-permeability membrane 500 and the adjustment component; refer to Figure 4 , and then the air in the enclosed space is extracted from the vacuum hole 320 on the adjustment component, so that the anti-permeability membrane 500 is in close contact with the inner wall of the adjustment channel 110 in the mold frame 100 and the top of the adjustment component; Figure 5 After the preliminary preparations are completed, the foaming material 600 is injected into the anti-permeation membrane 500 of the regulating channel 110; Figure 6 , cover the upper template 200, adjust the assembly to close the upper template 200 to close the mold, and perform pressure maintenance, foaming, and exhaust processes to finally obtain the product. Through the use method of the adjustable foaming mold of the present application, the structure and thickness of a local position in the foaming mold can be adjusted by adjusting the concession, and the foaming material 600 can also be prevented from penetrating into the interior of the foaming mold, thereby saving the cost of producing foam products.

[0055] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. An adjustable foaming mold, characterized in that: include: A mold frame, wherein an adjustment channel is provided through the mold frame; An upper template, the upper template being arranged on the top of the mold frame; A lower mold structure, comprising a lower mold plate and an adjustment assembly, wherein the lower mold plate is disposed at the bottom of the mold frame, the adjustment assembly is disposed through the lower mold plate and is slidably disposed in the adjustment channel, a foaming area is formed in the adjustment channel between the adjustment assembly and the upper mold plate, and the adjustment assembly is provided with a plurality of vacuum holes connected to the foaming area; Wherein, grooves are provided on both sides of the top of the mold frame, and fixing components are provided in the grooves, and the fixing components are used to fix the anti-permeability membrane.

2. The adjustable foaming mold according to claim 1, characterized in that: The adjustment assembly includes a driving member, a transmission member, a movable block and a first support rod. The driving member is arranged below the lower template. The driving end of the driving member is connected to the transmission member. The transmission member is passed through the lower template. The movable block can be slidably arranged in the adjustment channel. The movable block and the transmission member are connected through the first support rod. Several vacuum holes are arranged on the movable block.

3. The adjustable foaming mold according to claim 2, characterized in that: The mold frame is provided with an exhaust channel, which is arranged below the movable block, and one end of the exhaust channel is communicated with the adjustment channel, and the other end of the exhaust channel passes through the side wall of the mold frame.

4. The adjustable foaming mold according to claim 2, characterized in that: The transmission member includes a connecting rod and a push block, the connecting rod is passed through the lower template, the push block is arranged in the adjustment channel, one end of the connecting rod is connected to the driving end of the driving member, and the other end of the connecting rod is connected to the push block, and the push block is connected to the movable block through the first support rod.

5. The adjustable foaming mold according to claim 4, characterized in that: A sealing assembly is provided between the connecting rod and the lower template.

6. The adjustable foaming mold according to claim 2, characterized in that: A plurality of cutting protrusions are provided on one side of the movable block facing the foaming area, and the vacuum holes are arranged on the sides of the cutting protrusions.

7. The adjustable foaming mold according to claim 1, characterized in that: A heating pipe is also provided in the mold frame, and the heating pipe is arranged beside the foaming area.

8. The adjustable foaming mold according to claim 2, characterized in that: It also includes a base and a second support rod, the driving member is arranged on the base, and the upper template is fixed to the base through the second support rod.

9. A method for using an adjustable foaming mold, characterized in that: Applied to the adjustable foaming mold according to any one of claims 1 to 8, the method of use comprises: Open the upper template and adjust the position of the adjustment component to change the specifications of the foaming area; Fixing an anti-permeability membrane on the top of the mold frame so that a closed space is formed between the anti-permeability membrane and the regulating component; The air in the enclosed space is extracted from the vacuum hole on the adjustment component so that the anti-permeability membrane is in close contact with the inner wall of the adjustment channel in the mold frame and the top of the adjustment component; injecting a foaming material into the anti-permeation membrane of the regulating channel; The upper template is covered, and the adjusting component is moved close to the upper template for closing the mold, and the processes of pressure holding, foaming and exhausting are performed to obtain the product.

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