A lateral gating and water drainage port device for an injection mold and the mold

Abstract

The present application provides a lateral gate dewatering port device and a mold for an injection mold. The lateral gate dewatering port device includes: an insert assembly, on which a runner and a first pushing part are provided, the first pushing part is located below the runner, and the first pushing part is used to push out the sprue in the runner along a first direction; a slider base, which is connected to the insert assembly, and the slider base is provided with a first inclined surface inclined at a preset angle; an elastic part, one end of the elastic part is used to be fixed to the mold body, and the other end of the elastic part is connected to the slider base; a lifter base, the lifter base is provided with a second inclined surface, and the inclination angle and inclination direction of the second inclined surface are the same as those of the first inclined surface; when the mold is closed, the lifter base is connected to the slider base, the second inclined surface is in contact with the first inclined surface, and the elastic part is in an elastically compressed state. When the mold is opened, the lifter base moves along the first direction and separates from the slider base, and the elastic part recovers deformation to push the slider base to drive the insert assembly to move together along a second direction, and the runner is separated from the product. The sprue in the runner is automatically demolded during the mold opening process.

Description

Technical Field

[0001] This application belongs to the technical field of injection molds, and particularly relates to a lateral gating and water drainage port device and a mold for an injection mold. Background Art

[0002] In the prior art, for injection molded products such as the front shell of a smart phone with implanted metal mold parts, during injection molding, the rubber part of the mold is slender, and the injected plastic material is mixed with glass fiber material, resulting in the plastic material being relatively brittle and hard. The gate of the mold is not suitable for using gating types such as submarine, horn, or hook styles. According to the injection flow length characteristics of relevant materials, there are some unfavorable factors and difficulties in designing the injection gate of the mold using conventional gating methods. For example, when using the lateral point gating method from the lateral position of the product outside, since the injection position on the side of the product is hidden inside the slide insert, the gate and the sprue part in the runner are located inside the slide insert and cannot be taken out smoothly, resulting in the problem of difficult sprue demolding. Summary of the Invention

[0003] An embodiment of this application provides a lateral gating and water drainage port device and a mold for an injection mold to solve the problem of difficult demolding of the sprue from the slide insert in the existing mold.

[0004] In a first aspect, an embodiment of this application provides a lateral gating and water drainage port device for an injection mold, including:

[0005] An insert assembly, on which a runner and a first pushing part are provided. The first pushing part is located below the runner, and the first pushing part is used to push out the sprue in the runner along a first direction;

[0006] A slide base, connected to the insert assembly, and the slide base is provided with a first inclined surface inclined at a preset angle;

[0007] An elastic part, one end of which is used to be fixed to the mold body, and the other end of the elastic part is connected to the slide base;

[0008] A lifter base, provided with a second inclined surface, and the inclination angle and inclination direction of the second inclined surface are the same as those of the first inclined surface;

[0009] When the mold is closed, the lifter base is connected to the slide base, the second inclined surface fits with the first inclined surface, and the elastic part is in an elastically compressed state. When the mold is opened, the lifter base moves along the first direction and separates from the slide base, and the elastic part recovers its deformation and pushes the slide base to drive the insert assembly to move together along a second direction, and the runner is separated from the product.

[0010] Optionally, the insert assembly includes a first insert and a second insert. The second insert is connected to the slide base, and the runner is arranged on the first insert and the second insert;

[0011] When the mold is closed, the first insert and the second insert are connected. When the mold is opened, the elastic part restores its deformation and pushes the slider seat. The slider seat drives the second insert to move together in the second direction, the first insert and the second insert are separated, and the sprue in the runner is separated from the first insert.

[0012] Optionally, it further includes a second pushing part. The first insert is connected to the second pushing part, and the second pushing part is used to push the first insert in a direction opposite to the moving direction of the second insert.

[0013] Optionally, the second pushing part includes a spring pin and a second spring. The spring pin is connected to the first insert. One end of the second spring is connected to the spring pin, and the other end of the second spring is connected to the slider seat. The second spring is used to restore the deformation force to push the first insert to keep connected with the product during the separation process of the first insert and the second insert.

[0014] Optionally, the second inclined surface includes a second part, and the second part is a vertically arranged plane. One end of the spring pin is connected to the first insert. When the mold is closed, the other end of the spring pin extends to the second part, and during the separation process of the first insert and the second insert, the spring pin moves along the second part in a fitting manner.

[0015] Optionally, a limiting part is provided on the spring pin, and second through holes are provided on the second insert and the slider seat. First limiting and mating parts and second limiting and mating parts are provided on the side wall of the second through hole. The first limiting and mating part and the second limiting and mating part are respectively located on both sides of the limiting part. One end of the second spring abuts against the limiting part, and the other end of the second spring abuts against the first limiting and mating part. When the mold is closed, there is a first gap between the other end of the limiting part and the second limiting and mating part.

[0016] Optionally, the second limiting and mating part is provided on the second insert. During the movement of the second insert in the second direction, the limiting part is in contact with the second limiting and mating part, and the second insert drives the first insert to move in the second direction, and the first insert is separated from the product.

[0017] Optionally, the first pushing part includes a first spring, a positioning pin and a driving ejector pin. One end of the first spring is connected to the second insert, and the other end of the first spring is connected to the positioning pin. One end of the positioning pin extends into the runner. The driving ejector pin is located below the positioning pin. The driving ejector pin is used to drive the positioning pin to move in the first direction to eject the sprue in the runner. The first spring is used to restore deformation to push the positioning pin to reset after the driving ejector pin is separated from the positioning pin.

[0018] Optionally, the elastic part includes a third spring and a spring hole. The spring hole is arranged on the slider base. The third spring is located in the spring hole. The third spring is used to restore deformation to push the slider base to move in the second direction when the mold is opened.

[0019] In a second aspect, an embodiment of the present application further provides a mold, including:

[0020] A fixed template and a movable template, the fixed template is connected to the movable template, and a first accommodating cavity and a second accommodating cavity are arranged between the fixed template and the movable template;

[0021] A fixed inner mold and a movable inner mold, the fixed inner mold and the movable inner mold are connected. A third accommodating cavity and a cavity are arranged between the fixed template and the movable template. The fixed inner mold and the movable inner mold are arranged in the first accommodating cavity;

[0022] For the lateral gating and dewatering port device of an injection mold described in any one of the above, when the mold is closed, the insert assembly is located in the third accommodating cavity, the runner is located on the side of the cavity, the slider base and the lifter are located in the second accommodating cavity, and the elastic part connects the slider base and the movable inner mold. When the mold is closed, the elastic part is in an elastically compressed state. The fixed template is connected to the lifter. When the mold is opened, the fixed template is separated from the movable template, the lifter moves in the first direction to be separated from the slider base, the elastic part restores deformation to push the slider base to drive the insert assembly to move together in the second direction, the runner is separated from the cavity, and the first pushing part ejects the sprue in the runner in the first direction.

[0023] A lateral gating and dewatering port device and a mold provided by an embodiment of the present application. When the mold is closed, the shovel base is connected to the slider seat, the second inclined surface is attached to the first inclined surface, and the elastic part is in an elastically compressed state. During the mold opening process, the shovel base separates from the slider seat along the first moving direction, and the elastic part recovers its deformation to push the slider seat, driving the insert assembly to move together along the second moving direction, separating the runner from the product. The first pushing part pushes out the sprue in the runner along the first direction, overcoming the problem that it is difficult to demold the sprue from the slider insert when the mold uses lateral gating. During the mold opening process, the sprue in the runner is automatically demolded. While meeting the requirements of the appearance quality and structural strength of the product, it does not rely on external auxiliary equipment, the product manufacturing process is short, and the production efficiency of the mold is high and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following described drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] In order to more comprehensively understand the present application and its beneficial effects, the following will be described in conjunction with the drawings. Among them, the same reference numerals represent the same parts in the following description.

[0026] Figure 1 An exploded view of the lateral gating and dewatering port device on one side of the mold cavity provided by an embodiment of the present application.

[0027] Figure 2 An exploded view of the lateral gating and dewatering port device on the other side of the mold cavity provided by an embodiment of the present application.

[0028] Figure 3 A schematic structural diagram of the mold in the closed state provided by an embodiment of the present application.

[0029] Figure 4 For Figure 3 The partial enlarged view at A in

[0030] Figure 5 A schematic structural diagram of the mold in the early and middle stages of mold opening provided by an embodiment of the present application.

[0031] Figure 6 For Figure 5 The partial enlarged view at B in

[0032] Figure 7 A schematic structural diagram of the mold in the completed stage of mold opening provided by an embodiment of the present application.

[0033] Figure 8 For Figure 7Partial enlarged view at C in the [diagram].

[0034] Figure 9 Schematic structural diagram of the mold opening product and sprue ejection stage provided by the embodiment of the present application.

[0035] Figure 10 is Figure 9 Partial enlarged view at D in the [diagram]. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0037] The embodiment of the present application provides a lateral gating and dewatering port device and a mold for an injection mold to solve the problem that it is difficult for the sprue to be demolded from the slide insert in the existing mold.

[0038] Refer to Figure 1 、 Figure 2 and Figure 3 As shown, a lateral gating and dewatering port device for an injection mold provided by the embodiment of the present application is applied to a mold. Exemplarily, the product for injection molding by the mold is a smartphone case, and the smartphone case has side portions on all four sides. In addition to the smartphone case, other injection-molded products can also adopt the lateral gating and dewatering port device 2 provided by the embodiment of the present application.

[0039] In order to more clearly illustrate the structure of the lateral gating and dewatering port device of the injection mold, the lateral gating and dewatering port device 2 will be introduced below in conjunction with the accompanying drawings.

[0040] Refer to Figure 1 and Figure 2, A lateral gating and water drainage port device for an injection mold, applied to a mold, comprising: an insert assembly 20, a runner 21, a first pushing part 22, a slider base 23, an elastic part 25, and a lifter base 26. The runner 21 and the first pushing part 22 are arranged on the insert assembly 20, the first pushing part 22 is located below the runner 21, the slider base 23 is connected to the insert assembly 20, the slider base 23 is provided with a first inclined surface 231 inclined at a preset angle, the lifter base 26 is provided with a second inclined surface 261, and the inclination angle and inclination direction of the second inclined surface 261 are the same as those of the first inclined surface 231. One end of the elastic part 25 is fixed, and the other end of the elastic part 25 is connected to the slider base 23. When the mold is closed, the lifter base 26 is connected to the slider base 23, the second inclined surface 261 is in contact with the first inclined surface 231, and the elastic part 25 is in an elastically compressed state. When the mold is opened, the lifter base 26 moves in the first direction to separate from the slider base 23, the elastic part 25 recovers its deformation and pushes the slider base 23 to drive the insert assembly 20 to move together in the second direction, the runner 21 is separated from the product, and the first pushing part 22 ejects the sprue in the runner 21 in the first direction.

[0041] In an embodiment of the present application, referring to Figure 3 and Figure 4 As shown, a coordinate axis is established. Among them, the first direction is the Y-axis, and the second direction is the X-axis. When the mold is vertically arranged, taking the lateral gating and water drainage port device 2 on the right side as an example, the lifter base 26 is located above the slider base 23. The lifter base 26 moves in the positive direction of the Y-axis, and the slider base 23 moves in the direction of the X-axis. When the lifter base 26 is located below the slider base 23, the lifter base 26 moves in the negative direction of the Y-axis, and the slider base 23 moves in the positive direction of the X-axis. It can be understood that when the placement direction of the mold is different, the moving directions of the lifter base 26 and the slider base 23 are also different. Only one example is provided in this embodiment for illustration.

[0042] In an embodiment of the present application, the first inclined surface 231 is located on the side of the slider base 23 away from the insert assembly 20 and is inclined downward and away from the slider base 23. The second inclined surface 261 is arranged on the side of the lifter base 26 close to the slider base and is inclined downward and away from the slider base 23. During the process of the lifter base 26 moving in the positive direction of the Y-axis to separate from the slider base 23, the second inclined surface 261 is separated from the first inclined surface 231, the elastic part 25 recovers its deformation and pushes the slider base 23, the slider base 23 drives the insert assembly 20 to move together in the positive direction of the X-axis, the runner 21 is separated from the product, and then the first pushing part 22 moves in the positive direction of the Y-axis to eject the sprue in the runner 21, and the runner sprue is demolded. During the mold opening of the mold, without adding other products and processes, the sprue demolding can be completed only by relying on the lateral gating and water drainage port device, and the sprue demolding operation is simple.

[0043] In an embodiment of the present application, referring to Figure 1 and Figure 4As shown, the insert component 20 includes a first insert 200 and a second insert 202. The first insert 200 is connected to the second insert 202. The runner 21 is provided on the first insert 200 and the second insert 202. The second insert 202 is connected to the slider base 23. When the mold is closed, the first insert 200 and the second insert 202 are connected. When the mold is opened, the lifter 26 moves in the positive Y-axis direction and separates from the slider base 23. The elastic part 25 restores the deformation force to push the slider base 23 to drive the second insert 202 to move together in the positive X-axis direction. The first insert 200 is separated from the second insert 202, and the sprue in the runner 21 is separated from the first insert 200.

[0044] In an embodiment of the present application, the insert component 20 further includes a first through hole 204. The first through hole 204 is provided on the second insert 202. The first through hole 204 is communicated with the runner 21. The first pushing part 22 is located in the first through hole 204. The sprue part in the runner 21 wraps the first pushing part 22. When the first insert 200 is separated from the second insert 202, the first pushing part 22 moves together with the second insert 202 in the positive X-axis direction. The first pushing part 22 is connected to the sprue, driving the sprue to move in the positive X-axis direction. At this time, the position of the first insert 200 remains unchanged, and the sprue is naturally separated from the first insert 200.

[0045] Exemplarily, refer to the appendix Figure 1 , the first insert 200 includes a first sub-insert 2000 and a second sub-insert 2002. Among them, the second sub-insert 2002 is provided at both ends of the first sub-insert 2000. Both ends of the first sub-insert 2000 have limiting grooves 2004 corresponding to the first sub-insert 2000. The second insert 202 is provided with a first position 2020 and a second position 2022. The first position 2020 is a recessed area with an opening on one side. The shape of the first position 2020 is a recessed area matching the first sub-insert 2000. The second position 2022 communicates with the first position 2020. The first sub-insert 2000 is located in the first position 2020. One end of the second sub-insert 2002 is located in the second position 2022, and the other end of the second sub-insert 2002 is located in the limiting groove 2004.

[0046] Refer to the appendix Figure 2 , the runner 21 includes a plurality of shunt units 210 and a converging unit 212. The plurality of shunt units 210 are provided on the first insert 200 and the second insert 202. The plurality of shunt units 210 are arranged side by side at intervals perpendicular to the side of the product. The plurality of shunt units 210 are connected through a converging unit 212. Refer to the appendix Figure 1, the flow splitting unit 210 includes a first sub-unit 2100 and a second sub-unit 2102. The first sub-unit 2100 is disposed on the first insert 200, and the second sub-unit 2102 is disposed on the second insert 202. The converging sub-unit 212 is disposed at the connection between the first insert 200 and the second insert 202. The first sub-unit 2100 and the second sub-unit 2102 are respectively located on both sides of the converging sub-unit 212. When the first insert 200 is separated from the second insert 202, the first sub-unit 2100 is separated from the second sub-unit 2102. The second insert 202 pulls the sprue in the runner 21, driving the sprue in the runner 21 to become loose from the first insert 200. The first pushing portion 22 is connected to the second insert 202, and a part of the sprue in the runner 21 wraps the first pushing portion 22. When the first pushing portion 22 moves along the positive X-axis direction with the second insert 202, the first pushing portion 22 pulls the sprue to be separated from the first insert 200, realizing the loosening of the sprue in the converging unit 212 and the flow splitting unit 210. Subsequently, the converging unit 212 is pushed out along the first direction by the first pushing portion 22, and the sprue in the flow splitting unit 210 is also completely separated from the insert assembly 20, completing the sprue demolding. The demolding operation is simple, improving the efficiency and reducing the cost. It should be noted that the end of the runner 21 close to the product side has a hidden portion, and the hidden position is in a tapered shape. The end of the sprue is wrapped by the hidden portion at the end of the runner 21. If the sprue is directly pushed out by the first pushing portion 22, the end of the sprue is likely to break, and it is inconvenient to clean the remaining part of the sprue in the hidden portion. By setting the first insert 200 and the second insert 202 as a split structure and the runner 21 as a split structure, the sprue is loosened during the separation process of the first insert 200 and the second insert 202, and the end of the sprue is separated from the hidden portion of the runner 21. Then, the sprue is pushed out by the first pushing portion 22, ensuring the integrity of the sprue, avoiding the retention of the sprue in the runner 21, facilitating the cleaning of the runner 21, saving the operation process, and improving the production efficiency of the product.

[0047] In one embodiment of the present application, referring to the attached Figure 4 , to achieve the prior separation of the first insert 200 and the sprue in the runner 21, the lateral gating and de-gating device 2 further includes a second pushing portion 24. The first insert 200 is connected to the second pushing portion 24. During the separation process of the first insert 200 and the second insert 202, the second pushing portion 24 pushes the first insert 200 to be connected to the product side, and the second pushing portion 24 fixes the position of the first insert 200 during the separation process of the first insert 200 and the second insert 202, ensuring that the end of the sprue in the runner 21 is completely separated from the end of the runner 21, realizing the demolding of the sprue at the hidden position at the end of the runner 21.

[0048] In an embodiment of the present application, the second pushing part 24 includes a spring pin 240, a second spring 241, and a second through hole 242. The second spring 241 is sleeved on the spring pin 240. The second through hole 242 is arranged along the X-axis direction. The second spring 241 and the spring pin 240 are installed in the second through hole 242. The spring pin 240 is connected to the first insert 200. The other end of the spring pin 240 extends to the second inclined surface 261. The second spring 241 is in an elastically compressed state. One end of the second spring 241 is connected to the spring pin 240, and the other end is connected to the slider base 23. During the process of the lifter base 26 moving in the positive Y-axis direction, the slider base 23 drives the second insert 202 to move a certain distance in the positive X-axis direction. The second spring 241 restores its deformation force and pushes the first insert 200 in the negative X-axis direction, causing the first insert 200 to separate from the second insert 202, automatically realizing the separation of the end of the sprue in the runner 21 from the end of the runner 21. The entire process does not require manual operation, with a compact structure and a clever linkage design between components.

[0049] In an embodiment of the present application, the second inclined surface 261 includes a first part 2610, a second part 2612, and a third part 2614. The second part 2612 is a vertically arranged plane. The first part 2610 and the third part 2614 are planes located on the same inclined surface. The second part 2612 connects the first part 2610 and the third part 2614. The cross-sectional view of the second inclined surface 261 shows that the second part 2612 is a right-angled side of a right-angled triangle, and the first part 2610 and the third part 2614 are located on the extension of the hypotenuse of the right-angled triangle. When the mold is closed, as shown in Figure 4 the first part 2610 and the third part 2614 are in contact with the first inclined surface 231, and the end of the spring pin 240 abuts against the second part 2612. The acting force of the lifter base 26 on the spring pin 240 is sufficient to counteract the swelling force during product injection molding, ensuring the integrity of the runner 21. When the mold is opened, during the process of the lifter base 26 moving in the positive Y-axis direction, the end of the spring pin 240 first slides within the second part 2612, and the elastic restoring force of the second spring 241 also acts on the first insert 200, ensuring the contact and fit between the first insert 200 and the cavity 17. As shown in Figure 6 and Figure 8As shown, as the second inclined surface 261 moves in the positive Y-axis direction, one end of the ejector pin 240 is located in the second through hole 242. The second insert 202 drives the first insert 200 to move together in the positive X-axis direction, and the first insert 200 is separated from the cavity 17. Under the action of the pushing force of the second part 2612 and the elastic restoring force of the second spring 241 on the end of the ejector pin 240, during the gradual separation of the first insert 200 and the second insert 202, the position of the first insert 200 is fixed, and the end of the sprue in the runner 21 and the hidden end of the runner 21 are automatically demolded. In the mold-closing state, the lifter base 26 abuts against the ejector pin 240, and the ejector pin 240 abuts against the first insert 200 to fit with the cavity 17 side. The product structure is more compact. Without increasing the mold volume, the product has a high integration level and strong linkage between components.

[0050] In an embodiment of the present application, a limiting portion 2400 is provided on the ejector pin 240. The side wall of the second through hole 242 is provided with a first limiting and mating portion 2420 and a second limiting and mating portion 2422. The first limiting and mating portion 2420 and the second limiting and mating portion 2422 are respectively located on both sides of the limiting portion 2400. One end of the second spring 241 abuts against the limiting portion 2400, and the other end of the second spring 241 abuts against the first limiting and mating portion 2420. When the mold is closed, as shown in Figure 4 As shown, there is a first gap 2424 between the other end of the limiting portion 2400 and the second limiting and mating portion 2422. The limiting portion 2400 cooperates with the first limiting and mating portion 2420 and the second limiting and mating portion 2422 respectively to limit the relative movement distance between the first insert 200 and the second insert 202. The moving distance of the first insert 200 and the second insert 202 is the distance of the first gap 2424. When the limiting portion 2400 abuts against the second limiting and mating portion 2422, the second insert 202 drives the first insert 200 to move together in the positive X-axis direction, and the first insert 200 is separated from the cavity 17 side.

[0051] In an embodiment of the present application, the second through hole 242 includes a first communication portion 2426 and a second communication portion 2428 that are communicated. The first communication portion 2426 is provided on the second insert 202, and the second communication portion 2428 is provided on the slider base 23. The first communication portion 2426 and the second communication portion 2428 are relatively penetrated. The inner diameters of the first communication portion 2426 and the second communication portion 2428 are the same, and the inner diameters of the first communication portion 2426 and the second communication portion 2428 are larger than the inner diameter at other positions of the second through hole 242. The side wall step on one side of the first communication portion 2426 is the second limit fitting portion 2422, and the side wall on one side of the second communication portion 2428 is adjusted to be the first limit fitting portion 2420. When the mold is closed, the limiting portion 2400 is located in the first communication portion 2426, the second spring 241 is located in the second communication portion 2428, and one end of the ejector pin 240 extending into the second communication portion 2428 reaches the second inclined surface 261. The other end of the ejector pin 240 located in the first communication portion 2426 extends out of the first communication portion 2426 and is connected to the first insert 200. The installation, installation and movement of the second spring 241 and the ejector pin 240 are completed in the second through hole 242. While realizing multiple functions, the product structure is more compact.

[0052] See the appendix Figure 2 In an embodiment of the present application, the first pushing portion 22 includes a first spring 220, a positioning pin 222, a driving ejector pin 224 and a pressing plate 226. The first through hole 204 is opened on the second insert 202 along the Y-axis direction. The first spring 220 is sleeved on the positioning pin 222. One end of the first spring 220 abuts against the end of the first through hole 204, and the other end of the first spring 220 is connected to the end of the positioning pin 222. The head end of the positioning pin 222 extends along the first through hole 204 into the runner 21. The pressing plate 226 is installed at the end of the first through hole 204 and is connected to the second insert 202. The positioning pin 222 is installed on the pressing plate 226, and the driving ejector pin 224 is located below the positioning pin 222. When the mold is closed, the driving ejector pin 224 is misaligned with the positioning pin 222. When the mold is opened, the second insert 202 moves in the positive X-axis direction until the first through hole 204 is located above the driving ejector pin 224, and the driving ejector pin 224 is located directly below the positioning pin 222. The driving ejector pin 224 moves in the positive Y-axis direction to push the positioning pin 222. The head end of the positioning pin 222 ejects the sprue in the runner 21, and the end of the positioning pin 222 compresses the first spring 220 in the positive Y-axis direction. At this time, the first spring 220 is in an elastically compressed state. When the driving ejector pin 224 is separated from the positioning pin 222 and reset, the elastic force of the first spring 220 pushes the positioning pin 222 to reset. In this way, one-time sprue demolding is completed.

[0053] See the appendix Figure 4, a perforation 2260 through which the driving ejector pin 224 passes is provided on the pressing plate 226. The driving ejector pin 224 is fixedly arranged. The position where the pressing plate 226 moves to the end along the positive X-axis direction with the second insert 202 is that the driving ejector pin 224 is located directly below the positioning pin 222 where the perforation 2260 is located. During the process of the lifter base 26 moving along the positive Y-axis direction, the slider base 23 drives the second insert 202 and the first spring 220, positioning pin 222, driving ejector pin 224, and pressing plate 226 mounted on the second insert 202 to move along the positive X-axis direction. After the second inclined surface 261 of the lifter base 26 is completely separated from the first inclined surface 231, the positioning pin 222 is located directly above the driving ejector pin 224, and the driving ejector pin 224 pushes the positioning pin 222 along the perforation 2260 and through the first through hole 204.

[0054] In an embodiment of the present application, the elastic part 25 includes a third spring 250 and a spring hole 252. The spring hole 252 is provided on the slider base 23. The third spring 250 is located in the spring hole 252. One end of the third spring 250 abuts against the side wall of the spring hole 252. When the mold is closed, the third spring 250 is in an elastically compressed state.

[0055] See Figures 1-4 As shown, in an embodiment of the present application, a mold is provided, including:

[0056] A fixed template 10 and a movable template 11, the fixed template 10 is connected to the movable template 11, and a first accommodation cavity 14 and a second accommodation cavity 15 are provided between the fixed template 10 and the movable template 11;

[0057] A fixed inner mold 12 and a movable inner mold 13, the fixed inner mold 12 is connected to the movable inner mold 13, a third accommodation cavity 16 and a cavity 17 are provided between the fixed inner mold 12 and the movable inner mold 13, and the fixed inner mold 12 and the movable inner mold 13 are arranged in the first accommodation cavity 14;

[0058] For the side gate dewatering port device 2 of an injection mold according to any one of the above, see the attached Figure 2 , when the mold is closed, the insert assembly 20 is located in the third accommodation cavity 16, the runner 21 is located on the side of the cavity 17, the slider base 23 and the lifter base 26 are located in the second accommodation cavity 15, the elastic part 25 connects the slider base 23 and the movable inner mold 13, the elastic part 25 is in an elastically compressed state, the fixed template 10 is connected to the lifter base 26. When the mold is opened, the movable template 11 is separated from the fixed template 10, the lifter base 26 is separated from the slider base 23 along the positive Y-axis direction, the elastic part 25 restores deformation and pushes the slider base 23 to drive the insert assembly 20 to move together along the second moving direction, the runner 21 is separated from the cavity 17, and the first pushing part 22 pushes out the sprue in the runner 21 along the positive Y-axis direction.

[0059] In some embodiments, a limit screw 232 is provided on one side of the moving template 11 where the second receiving cavity 15 is located. The limit screw 232 is located beside the slider seat 23. The limit screw 232 is used to limit the distance that the slider seat 23 moves in the positive X-axis direction. When the slider seat 23 moves to abut against the limit screw 232, the slider seat 23 stops moving.

[0060] Exemplarily, the mold clamping structure is introduced:

[0061] See Figure 3 and Figure 4As shown, the mold is vertically arranged. The mold includes a fixed mold fixing plate, a stripping plate, a fixed template 10, and a moving template 11 arranged in sequence from top to bottom. The mold feet are connected to the moving mold fixing plate. A first accommodation cavity 14 and a second accommodation cavity 15 are provided between the fixed template 10 and the moving template 11. The second accommodation cavity 15 is arranged on both sides of the first accommodation cavity 14. A fitting fixed inner mold 12 and a moving inner mold 13 are arranged in the first accommodation cavity 14. A third accommodation cavity 16 and a cavity 17 are provided between the fixed inner mold 12 and the moving inner mold 13.Taking one side as an example for illustration, the third accommodation cavity 16 communicates with the second accommodation cavity 15. The lateral glue inlet and dehydration port device 2 is installed in the second accommodation cavity 15 and the third accommodation cavity 16. The shovel base 26 is connected to the fixed template 10. The shovel base 26 presses on the slider seat 23, and the first inclined surface 231 fits with the second inclined surface 261. The slider seat 23 fits with the moving inner mold 13. The spring hole 252 is opened on the side surface where the slider seat 23 fits with the moving inner mold 13. One end of the third spring 250 abuts against the moving inner mold 13, and the other end of the third spring 250 abuts against the side wall of the spring hole 252. The third spring 250 is in an elastically compressed state. The first sub-insert 2000 is located within the first position 2020, and one side portion of the first sub-insert 2000 fits with the moving inner mold 13, and the other side of the first sub-insert 2000 fits with the inner wall of the first position 2020. The second position 2022 communicates with the first position 2020. One end of the second sub-insert 2002 is located within the second position 2022, and the other end of the second sub-insert 2002 is located within the limit groove 2004, and there is a certain distance between the second sub-insert 2002 and the side wall of the limit groove 2004 away from the cavity 17. The first sub-unit 2100 is arranged on the first insert 200, the second sub-unit 2102 is arranged on the second insert 202, the converging sub-unit 212 is arranged at the connection of the first insert 200 and the second insert 202. The first sub-unit 2100 and the second sub-unit 2102 are respectively located on both sides of the converging sub-unit 212. The first sub-unit 2100 communicates with the side of the cavity 17, and the first sub-unit 2100 is arranged in a direction perpendicular to the side of the cavity 17. The second insert 202 and the slider seat 23 are provided with a second through hole 242 in the X-axis direction. The ejector pin 240 is installed in the second through hole 242. One end of the ejector pin 240 is connected to the first insert 200, the other end of the ejector pin 240 extends to the second part 2612, and another part of the ejector pin 240 extends a certain distance out of the first inclined surface 231. The second spring 241 is sleeved on the ejector pin 240. The second spring 241 is located within the second communication part 2428. The second spring 241 is in an elastically compressed state. A first gap 2424 is formed between the limiting part 2400 on the ejector pin 240 near the end of the cavity 17 and the second limiting and cooperating part 2422. For example, the distance of the first gap 2424 is 3.2 cm. The first through hole 204 is opened on the second insert 202 in the Y-axis direction. The first spring 220 is sleeved on the positioning pin 222. One end of the first spring 220 abuts against the end of the first through hole 204, and the other end of the first spring 220 is connected to the end of the positioning pin 222. The head end of the positioning pin 222 extends along the first through hole 204 into the second sub-unit 2102 of the runner 21. The pressure plate 226 is installed at the end of the first through hole 204 and is connected to the second insert 202. The positioning pin 222 is installed on the pressure plate 226. The driving ejector pin 224 is located below the positioning pin 222.

[0062] The structure during the mold opening process is as follows:

[0063] It can be understood that after the shovel base 26 is completely separated from the slider seat 23, the slider seat 23 moves as a whole in the positive direction of the X-axis by one end distance, such as 6 cm. In the process of the end of the spring pin 240 fitting the second part 2612 and moving, the height distance of the second part 2612 is 7 cm. The elastic restoring force of the elastic part 25 pushes the slider seat 23, and the slider seat 23 drives the second insert 202, the second pushing part 24, the first pushing part 22 and the flow channel 21 to move as a whole in the positive direction of the X-axis by a distance of 3 cm. At this time, the second pushing part 24 pushes the first insert 200 to resist the cavity 17. As the shovel base 26 continues to separate from the slider seat 23, the elastic part 25 continues to push the slider seat 23, and the slider seat 23 drives the second insert 202, the first insert 200, the second pushing part 24, the first pushing part 22 and the flow channel 21 to move as a whole in the positive direction of the X-axis by another 3 cm.

[0064] See also Figure 5 and Figure 6 As shown, Figure 5 This is a schematic diagram of the structure of the mold in the early and middle stages of mold opening provided in the embodiment of the present application. Figure 6 for Figure 5 A partial enlarged view of point B in the middle. In the early or middle stages of mold opening, the movable mold side begins to separate from the fixed mold plate 10, the first inclined surface 231 and the second inclined surface 261 are partially staggered and separated, the end of the spring pin 240 is in contact with the third portion 2614, the third portion 2614 is in contact with the first inclined surface 231, the second spring 241 is in a state of partially recovering elastic deformation, the limiting portion 2400 is in contact with the second limiting matching portion 2422, the first gap 2424 disappears, and the spring pin 240 pushes the first sub-insert 2000, so that the first sub-insert 2000 One side of the first sub-insert 2000 is in contact with the movable inner mold 13, and the other side of the first sub-insert 2000 is at a certain distance from the inner wall of the first position 2020 in the X-axis direction, which is the same as the first gap 2424. The end of the sprue in the first sub-unit 2100 is separated from the end of the first insert 200. At this time, the second insert 202 is at a certain distance from the side wall of the movable inner mold 13. For example, the distance between the second insert 202 and the side wall of the movable inner mold 13 is 3 cm, completing the first demolding of the sprue in the runner 21.

[0065] See also Figure 7 and Figure 8 As shown, Figure 7 This is a schematic diagram of the structure of the mold in the mold opening completion stage provided in the embodiment of the present application. Figure 8 for Figure 7Partial enlarged view at position C. At the completion stage of mold opening, the moving mold side continues to separate from the fixed template 10 until the first inclined surface 231 is completely separated from the second inclined surface 261. The second spring 241 restores its elastic deformation, and the slider seat 23 drives the insert assembly 20, the second pushing part 24, the first pushing part 22, and the runner 21 to move as a whole in the second moving direction until the slider seat 23 abuts against the limit screw 232. One side of the first sub-insert 2000 is spaced from the moving inner mold 13 by a certain distance, and the other side of the first sub-insert 2000 is spaced from the inner wall of the first position 2020 by a certain distance. The second insert 202 moves in the positive X-axis direction and drives the pressure plate 226 to move until the through hole 2260 on the pressure plate 226 is directly above the driving ejector pin 224. The second insert 202 stops moving, and the distance between the second insert 202 and the side wall of the moving inner mold 13 is 6 cm.

[0066] See Figure 9 and Figure 10 as shown in Figure 9 is a schematic structural diagram of the mold opening product and the gate ejection stage provided by the embodiment of the present application. Figure 10 is Figure 9 Partial enlarged view at position D. At the mold opening product and gate ejection stage, the ejector plate of the mold ejects the product located in the cavity 17, and the driving ejector pin 224 pushes the positioning pin 222. The first spring 220 is in an elastically compressed state. The positioning pin 222 ejects the gate in the runner 21 along the first moving direction. The product and the gate are sucked by the manipulator suction cup to complete the process. After the driving ejector pin 224 retracts to its original position and separates from the positioning pin 222, the elastic restoring force of the first spring 220 pushes the positioning pin 222 to reset.

[0067] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0068] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0069] In the description of the present application, the terms "upper", "lower", "left", and "right" for orientation description and movement direction description are expressed based on the drawings.

[0070] The above has introduced in detail a lateral gating and dewatering port device of an injection mold provided by an embodiment of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A side gate dewatering port device for an injection mold, characterized in that, Comprising: An insert component, on which a runner and a first pushing part are provided. The first pushing part is located below the runner and is used to push out the sprue in the runner along a first direction. The runner communicates with a first through-hole, and the first pushing part is located in the first through-hole. The sprue partially wraps the first pushing part, and the first pushing part is connected to the sprue to drive the sprue to move in the positive X-axis direction. The insert component includes a first insert and a second insert. The runner is provided on the first insert and the second insert, and the first through-hole is provided on the second insert. A slider base, which is provided with a first inclined surface inclined at a preset angle. The second insert is connected to the slider base. An elastic part, one end of which is used to be fixed to the mold body, and the other end of which is connected to the slider base. A lifter base, which is provided with a second inclined surface, and the inclination angle and inclination direction of the second inclined surface are the same as those of the first inclined surface. A second pushing part, the first insert is connected to the second pushing part, and the second pushing part is used to push the first insert in a direction opposite to the moving direction of the second insert. The second pushing part includes a spring pin and a second spring. The spring pin is connected to the first insert. One end of the second spring is connected to the spring pin, and the other end of the second spring is connected to the slider base. The second spring is used to, during the separation process of the first insert and the second insert, restore the deformation force to push the first insert to remain connected to the product. A limiting part is provided on the spring pin. Second through-holes are provided on the second insert and the slider base. First limiting mating parts and second limiting mating parts are provided on the side walls of the second through-holes. The first limiting mating parts and the second limiting mating parts are respectively located on both sides of the limiting part. One end of the second spring abuts against the limiting part, and the other end of the second spring abuts against the first limiting mating part. When the mold is closed, there is a first gap between the other end of the limiting part and the second limiting mating part. Among them, the second limiting mating part is provided on the second insert. When the mold is closed, the lifter base is connected to the slider base, the second inclined surface is in contact with the first inclined surface, the elastic part is in an elastically compressed state, and the first insert and the second insert are connected. When the mold is opened, the lifter base moves along the first direction to separate from the slider base, the elastic part restores the deformation to push the slider base, the slider base drives the second insert to move together along a second direction, the first insert and the second insert are separated, the sprue in the runner is separated from the first insert, the elastic part restores the deformation to push the slider base to drive the insert component to move together along the second direction, and the runner is separated from the product.

2. The side gate water drainage port device of an injection mold according to claim 1, characterized in that, The second inclined surface includes a second part, and the second part is a vertically arranged plane. One end of the spring pin is connected to the first insert. When the mold is closed, the other end of the spring pin extends to the second part, and during the separation process of the first insert and the second insert, the spring pin moves along the second part in contact.

3. The side gate water drainage port device of an injection mold according to claim 1, characterized in that, During the movement of the second insert along the second direction, the limiting portion is in contact with the second limiting and cooperating portion, the second insert drives the first insert to move along the second direction, and the first insert is separated from the product.

4. The side gate water drainage port device of an injection mold according to claim 1, characterized in that, The first pushing portion includes a first spring, a positioning pin, and a driving ejector pin. One end of the first spring is connected to the second insert, the other end of the first spring is connected to the positioning pin, one end of the positioning pin extends into the runner, the driving ejector pin is located below the positioning pin, the driving ejector pin is used to drive the positioning pin to move along the first direction to eject the sprue in the runner, and the first spring is used to restore deformation to push the positioning pin to reset after the driving ejector pin is separated from the positioning pin.

5. The side gate water drainage port device of an injection mold according to claim 1, characterized in that, The elastic portion includes a third spring and a spring hole. The spring hole is provided on the slider base, the third spring is located in the spring hole, and the third spring is used to restore deformation to push the slider base to move along the second direction when the mold is opened.

6. A mold, characterized in that, Comprising: A fixed template and a movable template, the fixed template is connected to the movable template, and a first accommodating cavity and a second accommodating cavity are provided between the fixed template and the movable template; A fixed inner mold and a movable inner mold, the fixed inner mold and the movable inner mold are connected, a third accommodating cavity and a cavity are provided between the fixed template and the movable template, and the fixed inner mold and the movable inner mold are arranged in the first accommodating cavity; For a lateral gate dewatering port device of an injection mold according to any one of claims 1-5, when the mold is closed, the insert assembly is located in the third accommodating cavity, the runner is located on the side of the cavity, the slider base and the lifter are located in the second accommodating cavity, the elastic portion connects the slider base and the movable inner mold. When the mold is closed, the elastic portion is in an elastically compressed state, the fixed template is connected to the lifter, the lifter is connected to the slider base, the second inclined surface is in contact with the first inclined surface, the elastic portion is in an elastically compressed state, and the first insert and the second insert are connected; when the mold is opened, the fixed template is separated from the movable template, the lifter moves along the first direction and is separated from the slider base, the elastic portion restores deformation to push the slider base, the slider base drives the second insert to move together along the second direction, the first insert and the second insert are separated, the sprue in the runner is separated from the first insert, and then, the elastic portion restores deformation to push the slider base to drive the insert assembly to move together along the second direction, the runner is separated from the cavity, and the first pushing portion ejects the sprue in the runner along the first direction.

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