A plastic molding die with side core pulling

Abstract

This utility model discloses a plastic molding die with a side core pull for producing a panel. The panel has an outer surface, rounded corners connecting the edges of the outer surface, side surfaces connecting the rounded corners, and a back surface opposite the outer surface. The plastic molding die includes a fixed mold, a movable mold, and a side core pull. The fixed mold has forming recesses for forming the outer surface and the rounded corners. The movable mold has forming protrusions for forming the back surface. The side core pull has side forming portions for forming the side surfaces. The forming recesses, the forming protrusions, and the side forming portions cooperate to form a forming cavity for the panel. This utility model's plastic molding die with a side core pull improves the mold structure, avoids flash between the outer surface and the side edges of the coffee machine panel, and prevents product scrap due to improper flash removal.

Description

Technical Field

[0001] This utility model relates to the technical field of injection mold structure, and in particular to a plastic molding mold with side core pulling. Background Technology

[0002] For plastic products, injection molding is often used, and the injection mold forms a molding cavity to meet the product molding requirements.

[0003] For a coffee machine panel, the fixed mold of the injection mold forms the front of the coffee machine panel, that is, the appearance surface of the coffee machine panel, while the moving mold of the injection mold forms the back of the coffee machine panel, that is, the structural surface of the coffee machine panel.

[0004] At the same time, the injection mold will be equipped with a side core pull, which is located between the fixed mold and the moving mold, thereby forming the side of the coffee machine panel.

[0005] However, side core pulls are mostly installed in the moving mold. After the injection mold has been used for a long time, gaps will be generated between the side core pull and the fixed mold due to the erosion of the material, resulting in overflow problems. This causes flash to exist between the appearance surface and the side of the coffee machine panel, which needs to be removed, increasing the workload. At the same time, if the removal is not done properly, it will also cause damage to the appearance surface of the coffee machine panel, resulting in product scrap. Utility Model Content

[0006] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a plastic molding die with side core pulling, which can improve the die structure, avoid flash between the exterior surface and the side edge of the coffee machine panel, and prevent product scrap due to improper flash removal.

[0007] A plastic molding die with a side core pull according to an embodiment of the present invention is used to produce a panel. The panel has an outer surface, rounded corners connecting the edges of the outer surface, side surfaces connecting the rounded corners, and a back surface opposite to the outer surface. The plastic molding die includes a fixed mold, a movable mold, and a side core pull. The fixed mold has a forming recess for forming the outer surface and the rounded corners. The movable mold has a forming protrusion for forming the back surface. The side core pull has a side forming portion for forming the side surface. The forming recess, the forming protrusion, and the side forming portion cooperate to form a forming cavity of the panel.

[0008] According to an embodiment of the present invention, a plastic molding die with a side core pull is provided: the forming recess is provided with a positioning groove facing the moving mold, the side core pull includes a side core block, one side of the side core block is used to form the side forming part, and the side of the side core block facing the fixed mold is in contact with the inner surface of the positioning groove.

[0009] A plastic molding die with a side core pull according to an embodiment of the present invention: the side core pull includes a side slider, the fixed mold includes a locking module, an inclined transmission structure is provided between the locking module and the side slider, the inclined transmission structure is used to lock the position of the side slider when the mold is closed, the locking module is provided with an inclined rod, the side slider is provided with an inclined hole, the inclined rod and the inclined hole cooperate to drive the side slider to move.

[0010] According to an embodiment of the present invention, a plastic molding die with a side core pull is provided: a step is provided on the side of the side slider facing away from the molding cavity, the side of the step is used to form the inclined transmission structure, and the inclined hole is provided on the bottom surface of the step.

[0011] According to an embodiment of the present invention, a plastic molding die with a side core pull is provided on the inclined surface of the step, and the pad is used to contact the locking module.

[0012] According to an embodiment of the present invention, a plastic molding die with a side core-pulling mechanism is provided: the fixed mold includes a first template and a first insert disposed on the first template. The first insert is used to form the forming recess. The first template is provided with a stepped groove for installing the locking module. The low point of the stepped groove is located close to the center of the forming cavity.

[0013] According to an embodiment of the present invention, a plastic molding die with a side core pull is provided: the moving die includes a second template and a second insert disposed on the second template. The second insert is used to form the forming protrusion. The second template is provided with a mounting groove for mounting the side slider. A slide rail is installed at the bottom of the mounting groove. The slide rail has a T-shaped cross-section. The side slider is provided with a slide rail groove for accommodating the slide rail. The slide rail groove has a T-shaped cross-section.

[0014] According to an embodiment of the present invention, a plastic molding die with a side core is provided: a spring is provided between the second insert and the side slider, the spring being used to move the side slider away from the molding cavity.

[0015] According to an embodiment of the present invention, a plastic molding die with a side core pull is provided in the mounting groove, wherein the mounting groove is provided with a limiting screw, the limiting screw is used to abut against the side slider to prevent the side slider from coming out of the mounting groove.

[0016] According to an embodiment of the present invention, a plastic molding die with a side core pull is provided: the side core pull is provided with a heat exchange channel, and a heat exchange medium flows in the heat exchange channel.

[0017] A plastic molding die with side core pulling according to an embodiment of the present invention has at least the following beneficial effects:

[0018] This invention places the dividing line between the fixed mold and the side core pull on the side edge of the panel, away from the rounded corner. Therefore, even if flash occurs, it will be far away from the appearance surface and the rounded corner connecting to the appearance surface. Thus, when removing flash, the appearance surface and rounded corner will not be scratched, avoiding affecting the appearance quality of the panel and improving product yield.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a cross-sectional schematic diagram of a plastic molding die with side core pulling according to an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 An assembly diagram of a plastic molding die with side core pulling is shown.

[0023] Figure 3 for Figure 2 The diagram shown is a schematic representation of the explosion.

[0024] Reference numerals: Fixed mold 100; Moving mold 110; Side core pull 120; Forming recess 130; Forming protrusion 140; Side forming part 150; Positioning groove 160; Side core block 170; Side slider 180; Locking module 190; Inclined transmission structure 200; Inclined hole 210; Inclined rod 220; Step 230; Pad 240; First template 250; First insert 260; Step groove 270; Second template 280; Second insert 290; Mounting groove 300; Slide rail 310; Slide rail groove 320; Spring 330; Limiting screw 340; Heat exchange channel 350. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, this is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The following describes a plastic molding die with a side core-pulling mechanism according to an embodiment of the present invention, with reference to the accompanying drawings.

[0030] Reference Figures 1 to 3 The present invention aims to provide an embodiment of a plastic molding die with side core pulling.

[0031] In this embodiment, a plastic molding die is used to produce a panel, which has an outer surface, rounded corners connecting the edges of the outer surface, side surfaces connecting the rounded corners, and a back surface opposite the outer surface.

[0032] Structurally, the plastic molding die includes a fixed mold 100, a moving mold 110, and a side core pull 120. The fixed mold 100 has a forming recess 130 for forming the appearance surface and rounded corners, the moving mold 110 has a forming protrusion 140 for forming the back side, and the side core pull 120 has a side forming portion 150 for forming the side side. The forming recess 130, the forming protrusion 140, and the side forming portion 150 cooperate to form the forming cavity of the panel.

[0033] This invention positions the boundary line between the fixed mold 100 and the side core puller 120 on the side edge of the panel, away from the rounded corner. Therefore, even if flash occurs, it will be far away from the appearance surface and the rounded corner connecting to the appearance surface. Thus, when removing flash, the appearance surface and rounded corner will not be scratched, avoiding affecting the appearance quality of the panel and improving product yield.

[0034] At the same time, by placing the dividing line between the fixed mold 100 and the side core pull 120 on the side of the panel away from the rounded corner, it also avoids the solid containing the inner round surface used to form the rounded corner from having sharp edges, thus reducing the risk of mold damage.

[0035] In some specific embodiments of this utility model, the moving mold 110 can have an ejector pin. When the mold is opened and the moving mold 110 reaches one end of the injection molding machine, the injection molding machine abuts against one end of the ejector pin, thereby making the ejector pin stationary and causing relative movement between the moving mold 110 and the ejector pin, so that the ejector pin can push out the panel and complete the demolding.

[0036] In some specific embodiments of this utility model, the forming recess 130 may be provided with a positioning groove 160 facing the moving mold 110, the side core pull 120 includes a side core block 170, one side of the side core block 170 is used to form a side forming part 150, and the side of the side core block 170 facing the fixed mold 100 is in contact with the inner surface of the positioning groove 160.

[0037] It is easy to understand that by setting the positioning groove 160, this embodiment can also facilitate the covering of the side core block 170, avoid the side core block 170 being skewed so that there is a large gap between the side core pull 120 and the fixed mold 100, and reduce the generation of flash.

[0038] In some specific embodiments of this utility model, the bottom of the positioning groove 160 can be provided with a wear-resistant pad to improve the contact with the side core block 170, making the mold durable.

[0039] In some specific embodiments of this utility model, the side core puller 120 may be provided with a heat exchange channel 350, and a heat exchange medium flows in the heat exchange channel 350.

[0040] It is easy to understand that by setting the heat exchange channel 350, the side core block 170 can also be cooled, so that the shrinkage of the positioning groove 160 and the side core block 170 is consistent, the gap between the positioning groove 160 and the side core block 170 is reduced, and the probability of flash is reduced.

[0041] In some specific embodiments of this utility model, heat exchange channels can be provided in other parts of the fixed mold 100 and the moving mold 110 to make the temperature inside the mold uniform and improve product forming.

[0042] In some specific embodiments of this utility model, the side core puller 120 may include a side slider 180, the fixed mold 100 may include a locking module 190, and an inclined transmission structure 200 may be provided between the locking module 190 and the side slider 180. The inclined transmission structure 200 is used to lock the position of the side slider 180 when the mold is closed. The locking module 190 is provided with an inclined rod 220, and the side slider 180 is provided with an inclined hole 210. The inclined rod 220 and the inclined hole 210 cooperate to drive the side slider 180 to move.

[0043] It is easy to understand that by simultaneously setting the inclined plane transmission structure 200 and the inclined rod 220 on the lock module, the above structures can be arranged in a limited space, reducing the space occupied and allowing for a larger space to be reserved inside the mold, which is convenient for producing panels with larger surfaces without the need to use larger molds, thus reducing manufacturing costs.

[0044] In some specific embodiments of this utility model, the side slider 180 can be provided with a step 230 on the side facing away from the forming cavity, the side of the step 230 is used to form an inclined transmission structure 200, and the bottom surface of the step 230 is provided with an inclined hole 210.

[0045] It is easy to understand that by setting the step 230 in this embodiment, the height of the mold can also be reduced. Reducing the height of the mold allows the first insert 260 and the second insert 290 to be made thinner, reducing material usage and manufacturing costs.

[0046] In some specific embodiments of this utility model, the inclined surface of the step 230 may be provided with a pad 240, which is used to contact the lock module 190.

[0047] It is easy to understand that by setting the pad 240 in this embodiment, cushioning can be provided, while improving wear resistance and extending the mold life.

[0048] In this embodiment, the step 230 is provided with two pads 240, which can provide multi-point support and balanced force distribution.

[0049] In some specific embodiments of this utility model, the moving mold 110 can be provided with a wear-resistant pad, which is referenced to the pad body 240, to reduce the wear of the side slider 180.

[0050] In some specific embodiments of this utility model, the fixed mold 100 may include a first template 250 and a first insert 260 disposed on the first template 250. The first insert 260 is used to form a forming recess 130. The first template 250 is provided with a stepped groove 270 for mounting a locking module 190. The low point of the stepped groove 270 is located close to the center of the forming cavity.

[0051] It is easy to understand that by setting the stepped groove 270, the installation of the locking module 190 can be simplified. At the same time, when locking the mold after mold closing, the stepped groove 270 can exert a force on the locking module 190, avoiding the screws that install the locking module 190 from bearing the injection pressure, preventing the locking module 190 from loosening, and improving the reliability of the mold.

[0052] In some specific embodiments of this utility model, the movable mold 110 may include a second template 280 and a second insert 290 disposed on the second template 280. The second insert 290 is used to form the forming protrusion 140. The second template 280 is provided with a mounting groove 300 for mounting a side slider 180. A slide rail 310 is mounted at the bottom of the mounting groove 300. The cross-section of the slide rail 310 is T-shaped. The side slider 180 is provided with a slide rail groove 320 for accommodating the slide rail 310. The cross-section of the slide rail groove 320 is T-shaped.

[0053] It is easy to understand that, by setting the mounting groove 300, the side core pull 120 is also hidden inside the moving mold 110, thereby reducing the mold height.

[0054] Meanwhile, the slide rail 310 and slide rail groove 320 are provided to facilitate the limitation of the movement trajectory of the side slider 180 and prevent the side slider 180 from tilting. The cross-section of the slide rail 310 and slide rail groove 320 is T-shaped, which makes it easy to process and reduces manufacturing costs.

[0055] In some specific embodiments of this utility model, the slide rail 310 and the slide rail groove 320 can adopt other guide rail cross-sectional forms to improve the sliding fit accuracy, but the impact of manufacturing difficulty and manufacturing cost needs to be considered.

[0056] In some specific embodiments of this utility model, a spring 330 can be provided between the second insert 290 and the side slider 180, and the spring 330 is used to move the side slider 180 away from the forming cavity.

[0057] It is easy to understand that by setting the spring 330, this embodiment also facilitates the removal of the side core pull 120 from the molding cavity, making it easier to demold the product, avoiding excessive force on the inclined rod 220 and the inclined hole 210, reducing wear, and extending service life.

[0058] In some specific embodiments of this utility model, the mounting groove 300 may be provided with a limiting screw 340, which is used to abut against the side slider 180 to prevent the side slider 180 from coming out of the mounting groove 300.

[0059] It is easy to understand that, by setting the limit screw 340, this embodiment also prevents the side slider 180 from sliding out, which facilitates continuous production of the mold.

[0060] Furthermore, the limit screw 340 is easy to disassemble, making maintenance work convenient.

[0061] In some specific embodiments of this utility model, two limiting screws 340 can be used to limit the same side slider 180, so as to avoid missing or falling off and affecting the operation of the mold.

[0062] At the same time, it reduces the impact on the individual limit screw 340 and extends its service life.

[0063] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0064] The terms "first," "second," "third," "fourth," etc. (if applicable) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein.

[0065] It should also be noted that, in the description of this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0066] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may also include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or apparatus.

[0067] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0068] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A plastic molding die with side core pulling for producing a panel, the panel having an outer surface, rounded corners connecting the edges of the outer surface, side surfaces connecting the rounded corners, and a back surface opposite the outer surface, characterized in that, The plastic molding die includes a fixed mold (100), a moving mold (110), and a side core puller (120). The fixed mold (100) has a forming recess (130) for forming the outer surface and the rounded corners. The moving mold (110) has a forming protrusion (140) for forming the back side. The side core puller (120) has a side forming portion (150) for forming the side side. The forming recess (130), the forming protrusion (140), and the side forming portion (150) cooperate to form the forming cavity of the panel.

2. A plastic molding die with side core pulling according to claim 1, characterized in that: The forming recess (130) is provided with a positioning groove (160) facing the moving mold (110), the side core pull (120) includes a side core block (170), one side of the side core block (170) is used to form the side forming part (150), and the side of the side core block (170) facing the fixed mold (100) is in contact with the inner surface of the positioning groove (160).

3. A plastic molding die with side core pulling according to claim 1, characterized in that: The side core puller (120) includes a side slider (180), and the fixed mold (100) includes a locking module (190). An inclined transmission structure (200) is provided between the locking module (190) and the side slider (180). The inclined transmission structure (200) is used to lock the position of the side slider (180) when the mold is closed. The locking module (190) is provided with an inclined rod (220), and the side slider (180) is provided with an inclined hole (210). The inclined rod (220) and the inclined hole (210) cooperate to drive the side slider (180) to move.

4. A plastic molding die with side core pulling according to claim 3, characterized in that: The side slider (180) has a step (230) on the side facing away from the forming cavity. The side of the step (230) is used to form the inclined transmission structure (200). The bottom surface of the step (230) is provided with the inclined hole (210).

5. A plastic molding die with side core pulling according to claim 4, characterized in that: The inclined surface of the step (230) is provided with a pad (240), which is used to contact the lock module (190).

6. A plastic molding die with side core pulling according to claim 3, characterized in that: The fixed mold (100) includes a first template (250) and a first insert (260) disposed on the first template (250). The first insert (260) is used to form the forming recess (130). The first template (250) is provided with a stepped groove (270) for mounting the locking module (190). The low point of the stepped groove (270) is located close to the center of the forming cavity.

7. A plastic molding die with side core pulling according to claim 3, characterized in that: The moving mold (110) includes a second template (280) and a second insert (290) disposed on the second template (280). The second insert (290) is used to form the forming protrusion (140). The second template (280) is provided with a mounting groove (300) for mounting the side slider (180). A slide rail (310) is installed at the bottom of the mounting groove (300). The slide rail (310) has a T-shaped cross-section. The side slider (180) is provided with a slide rail groove (320) for accommodating the slide rail (310). The slide rail groove (320) has a T-shaped cross-section.

8. A plastic molding die with side core pulling according to claim 7, characterized in that: A spring (330) is provided between the second insert (290) and the side slider (180), the spring (330) being used to move the side slider (180) away from the forming cavity.

9. A plastic molding die with side core pulling according to claim 7, characterized in that: The mounting groove (300) is provided with a limiting screw (340), which is used to abut the side slider (180) to prevent the side slider (180) from coming out of the mounting groove (300).

10. A plastic molding die with side core pulling according to claim 1, characterized in that: The side core puller (120) is provided with a heat exchange channel (350), and a heat exchange medium flows in the heat exchange channel (350).

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