Injection mold capable of forming composite groove body structure

Abstract

The utility model relates to an injection mold capable of forming a composite groove body structure. The injection mold comprises an upper mold base, a lower mold base, an upper mold core and a lower mold core, a movable groove penetrating through the outer side wall of the lower mold core is formed in the upper surface of the lower mold core, a communicating groove directly communicating with the lower injection molding groove is formed in the inner wall, close to the lower injection molding groove, of the movable groove, a plug seat for plugging the communicating groove is arranged in the movable groove in a left-right sliding mode, an extending part extending into the lower injection molding groove is arranged on the plug seat, and an inner cavity forming rod is arranged on the extending part; protruding parts are arranged on the inner wall of the lower injection molding groove and located on the two sides of the extending part. A sliding groove corresponding to the movable groove is formed in the upper surface of the lower die holder, a sliding seat for driving the plug seat to slide left and right is arranged in the sliding groove, and a pushing module for pushing the sliding seat to move towards or away from the lower die core is arranged on the upper die holder; during injection molding, two overlapped cavity grooves can be formed in the side wall of an injection molding piece through cooperation of the sliding seat, the extending part, the plug seat and the inner cavity forming rod.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold that can form a composite groove structure. Background Technology

[0002] Molds are various shapes and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, a mold is a tool used to create shaped objects; this tool is composed of various parts, and different molds are composed of different parts. It primarily achieves the shaping of objects by changing the physical state of the material being molded. It is often referred to as the "mother of industry."

[0003] In the daily injection molding production process, some panel products need to have horizontally recessed grooves formed on their side walls, and a second cavity needs to be formed on the side walls of the grooves. For products with such composite groove structures, traditional molds with only an up-and-down opening mode cannot realize the forming process of the second cavity. Therefore, it is necessary to design a new mold specifically for such products to meet the needs of daily production. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an injection mold that can form a composite tank structure, which can effectively solve the aforementioned problems.

[0005] To achieve the above requirements, the technical solution adopted by this utility model to solve its technical problem is as follows:

[0006] A molding die for forming a composite groove structure is provided, comprising an upper mold base and a lower mold base opposite to each other, and an upper mold core and a lower mold core; the upper mold core and the lower mold core are respectively embedded in the opposite side walls of the upper mold base and the lower mold core, and the opposite side walls of the upper mold core and the lower mold core are respectively provided with an upper injection groove and a lower injection groove; the upper surface of the lower mold core is provided with a movable groove penetrating its outer side wall, and the inner wall of the movable groove near the lower injection groove is provided with a connecting groove that directly communicates with the lower injection groove; the movable groove is located on the left side of the lower injection groove. A plug seat is provided on the right side to block the connecting groove. The plug seat has an extension that is adapted to the connecting groove and extends into the injection molding groove. The extension is detachably provided with an inner cavity forming rod in the left-right direction. The inner wall of the injection molding groove has protrusions on both sides of the extension. The upper surface of the lower mold base has a sliding groove for the movable groove. The sliding groove has a slide block that drives the plug seat to slide left and right. The upper mold base has a pushing module that pushes the slide block toward or away from the lower mold core.

[0007] In the injection mold of the formable composite groove structure of the present invention, the opposite sidewalls of the two protrusions are closely fitted with the sidewalls of the extension, and the bottom surface of the connecting groove is lower than the bottom surface of the lower injection molding groove; when assembled in place, the end face of the protrusion and the extension facing away from the slide is flush.

[0008] The injection mold of the formable composite groove structure of the present invention has a square longitudinal section and the end face of the extension extending into the lower injection groove is a vertical plane. The upper and lower surfaces of the extension are respectively flush with the upper and lower surfaces of the plug seat. The inner cavity forming rod is vertically arranged on the vertical plane.

[0009] The injection mold with a formable composite groove structure of the present invention has an arc-shaped chamfer on both the front and rear sides of the end of the plug seat near the lower mold core, and an arc-shaped recess that matches the arc-shaped chamfer is provided at the connection between the side wall of the movable groove near the lower mold core and its front and rear side walls.

[0010] The injection mold with a formable composite groove structure of the present invention has an upper surface of the plug seat that is higher than the upper surface of the lower mold core, and a clearance groove is provided on the lower surface of the upper mold core corresponding to the upper end of the plug seat and the extension.

[0011] The injection mold with a formable composite groove structure of the present invention has a cuboid end seat that is arranged in the left-right direction. A positioning step is recessed on the upper surface of the slide block corresponding to the end of the end seat away from the mold core. The end seat is detachably mounted on the positioning step.

[0012] The injection mold for the formable composite groove structure of this utility model has a horizontally penetrating fixing hole on one end face of the plug seat away from the lower mold core, which is adapted to the inner cavity forming rod. The plug seat has an annular countersunk hole around the fixing hole, and the inner cavity forming rod has an annular positioning platform corresponding to the annular countersunk hole. When assembled in place, the bottom surface of the annular countersunk hole, the annular positioning platform, and the longitudinal sidewall of the positioning step are horizontally pressed against each other.

[0013] The injection mold with a formable composite groove structure of the present invention has a positioning rib on the lower surface of the end of the plug seat away from the lower mold core along the front-back direction, and a positioning groove adapted to the positioning rib is provided on the upper surface of the positioning step.

[0014] The injection mold with a formable composite groove structure of the present invention includes a pushing module comprising an inclined guide post disposed on the lower surface of the upper mold base, the lower end of the inclined guide post being inclined toward the side away from the lower mold core, and an inclined guide hole adapted to the inclined guide post being provided on the slide block.

[0015] The injection mold with a formable composite groove structure of the present invention includes a push module that further includes a fixed base. The lower surface of the upper mold base is provided with a mounting groove for fixing the fixed base. The inclined guide post passes through the mounting groove and the fixed base. The lower surface of the fixed base is provided with a positioning protrusion facing downward on the side of the inclined guide post away from the upper mold core. The side wall of the positioning protrusion facing the upper mold core is provided with an upper inclined surface. The lower end of the upper inclined surface is inclined towards the side away from the upper mold core. The slide block is provided with a lower inclined surface parallel to the upper inclined surface. When the mold is closed, the upper inclined surface abuts against the lower inclined surface.

[0016] The beneficial effects of this utility model are as follows: During injection molding, the extension and inner cavity forming groove are inserted into the lower injection mold groove by pushing the plug seat through the slide seat, and the connecting groove is sealed simultaneously by the plug seat. After the molten adhesive is injected into the upper and lower injection mold grooves, the groove part and the second cavity groove located on the side wall of the groove part can be formed on the side wall of the workpiece. During demolding, by pushing the module to cooperate with the upper mold base, the slide seat and the plug seat can be moved horizontally away from the lower mold core, thereby moving the inner cavity forming rod out of the second cavity groove of the workpiece, which facilitates the removal of the workpiece from the lower injection mold groove and achieves rapid demolding. Thus, a composite groove structure can be formed on the workpiece, which meets the daily production needs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. 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.

[0018] Figure 1 This is an aerial view of the exploded state of this utility model.

[0019] Figure 2 yes Figure 1 Enlarged view of the local structure at point A in the middle.

[0020] Figure 3 yes Figure 1 Exploded view of the middle slide and the end cap.

[0021] Figure 4 yes Figure 3 Another perspective view.

[0022] Figure 5 yes Figure 1 Bottom view of the upper and middle mold base.

[0023] Figure 6 This is a structural diagram of the workpiece after molding according to this utility model. Detailed Implementation

[0024] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0027] Furthermore, the terms indicating orientation, such as "up," "down," "left," "right," "upper end," "lower end," and "longitudinal," are all based on the posture and position of the device or equipment described in this solution during normal use.

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] The preferred embodiment of this utility model is an injection mold capable of forming a composite groove structure, such as... Figure 1-5As shown, the system includes an upper mold base 10 and a lower mold base 20, which are positioned opposite each other, as well as an upper mold core 30 and a lower mold core 40. The upper mold core 30 and the lower mold core 40 are respectively embedded in the opposite side walls of the upper mold base 10 and the lower mold core 40. The opposite side walls of the upper mold core 30 and the lower mold core 40 are respectively provided with an upper injection molding groove 31 and a lower injection molding groove 41. When the mold is closed, the upper injection molding groove 31 and the lower injection molding groove 41 enclose each other to form an injection cavity. Furthermore, the upper mold base 10 is provided with a glue inlet channel 100 that communicates with the upper injection molding groove 31. The upper surface of the lower mold core 40 is provided with a movable groove 50 that penetrates its outer side wall. The inner wall of the movable groove 50 near the lower injection molding groove 41 is provided with a connecting groove 60 that directly communicates with the lower injection molding groove 41. Both the movable groove 50 and the connecting groove 60 are elongated and are arranged in the left-right direction. A plug seat 70 is slidably disposed along the left and right direction to block the connecting groove 60. The plug seat 70 is provided with an extension 71 that is adapted to the connecting groove 60 and extends into the lower injection molding groove 41. An inner cavity forming rod 80 along the left and right direction is detachably provided on the extension 71. The inner wall of the lower injection molding groove 41 is provided with protrusions 410 on both sides of the extension 71 to further improve the sealing of the side wall of the extension 71. The upper surface of the lower mold base 20 is provided with a sliding groove 90 for the movable groove 50. A slide seat 110 is provided in the sliding groove 90 to drive the plug seat 70 to slide left and right. The slide seat 110 is guided and slidably limited by the guide rail 91. The upper mold base 10 is provided with a push module 120 to push the slide seat 110 toward or away from the lower mold core 40 so as to realize synchronous drive of the slide seat 110 when the mold is opened or closed.

[0030] During injection molding, the slide block 110 pushes the plug seat 70 to extend the extension 71 and the inner cavity forming groove into the lower injection mold 41, and the plug seat 70 simultaneously seals the connecting groove 60. After the molten adhesive is injected into the upper and lower injection mold 41, the groove 201 and the second cavity 202 located on the side wall of the workpiece 200 can be formed. During demolding, by pushing the module 120 to cooperate with the upper mold base 10, the slide block 110 and the plug seat 70 can be horizontally moved away from the lower mold core 40, thereby moving the inner cavity forming rod 80 out of the second cavity of the workpiece, which facilitates the removal of the workpiece from the lower injection mold 41 and achieves rapid demolding. Thus, a composite groove structure can be formed on the workpiece 200, which meets the daily production needs.

[0031] In this embodiment, the opposite sidewalls of the two protrusions 410 are tightly fitted with the sidewall of the extension 71, and the bottom surface of the connecting groove 60 is lower than the bottom surface of the lower injection molding groove 41. When assembled in place, the protrusions 410 and the extension 71 are flush with the end face away from the slide block 110. Through the tight fit between the two protrusions 410 and the extension 71, the sealing performance on both sides of the extension 71 can be further improved, which can effectively prevent glue leakage. Moreover, the protrusions 410 can also work with the extension 71 to form a groove on the sidewall of the workpiece.

[0032] In this embodiment, the longitudinal section of the extension 71 is square and the end face of the end that extends into the lower injection molding groove 41 is a vertical plane. The upper and lower surfaces of the extension 71 are flush with the upper and lower surfaces of the plug seat 70, respectively. The inner cavity forming rod 80 is vertically arranged on the vertical plane. Furthermore, the plug seat 70 has arc-shaped chamfers 72 on both the front and rear sides of the end near the lower mold core 40. The movable groove 50 has arc-shaped recesses 51 that are adapted to the arc-shaped chamfers 72 at the connection between the side wall near the lower mold core 40 and the front and rear side walls. When the mold is closed, the arc-shaped chamfers 72 on the plug seat 70 fit tightly with the arc-shaped recesses 51 on the inner wall of the movable groove 50, thereby ensuring the sealing effect of the connecting groove 60.

[0033] In this embodiment, the upper surface of the plug seat 70 is higher than the upper surface of the lower mold core 40, and the lower surface of the upper mold core 30 is provided with a relief groove 32 corresponding to the upper end of the plug seat 70 and the extension 71. When the mold is closed, the bottom surfaces of the relief groove 32 and the movable groove 50 are pressed against the plug seat 70, thereby strengthening the stability of the plug seat 70 and preventing the plug seat 70 from moving outward and causing the sealing of the connecting groove 60 to fail.

[0034] In this embodiment, the plug seat 70 is rectangular and arranged in the left-right direction. A positioning step 1101 is recessed on the upper surface of the slide block 110 corresponding to the end of the plug seat 70 away from the mold core. The plug seat 70 is detachably mounted on the positioning step 1101. Furthermore, a fixing hole 73, adapted to the inner cavity forming rod 80, is horizontally provided through the end face of the plug seat 70 away from the lower mold core 40. An annular countersunk hole 74 is provided around the fixing hole 73 on the plug seat 70, and an annular positioning hole 74 is provided on the inner cavity forming rod 80 corresponding to the annular countersunk hole 74. When the platform 81 is assembled, the bottom surface of the annular countersunk hole 74, the annular positioning platform 81, and the longitudinal sidewalls of the positioning step 1101 are horizontally pressed together to ensure the seal of the fixing hole 73. Furthermore, the diameter of one end of the inner cavity forming rod 80 that extends into the lower injection molding groove 41 is smaller than the diameter of the other end, so that when the slide 110 presses against the annular positioning platform 81, the inner cavity forming rod 80 can be pressed against the inner wall of the fixing hole 73, ensuring that the inner cavity forming rod 80 fits tightly with the inner wall of the fixing hole 73 and preventing the appearance of sprue marks on the surface of the workpiece.

[0035] In this embodiment, the lower surface of the end of the plug seat 70 facing away from the lower mold core 40 is provided with a positioning rib 75 along the front-back direction, and the upper surface of the positioning step 1101 is provided with a positioning groove 1102 that matches the positioning rib 75, so as to further strengthen the purpose of fixing the plug seat 70. Specifically, the plug seat 70 is fixed to the upper surface of the positioning step 1101 by bolts 130. The bolts 130 and the fixing holes 73 are arranged in a staggered manner. Furthermore, a groove 111 is provided along the left-right direction on the end face of the slide 110 facing the lower mold core 40. The groove 111 is directly connected to the screw hole 131 that matches the bolt 130, thereby providing installation space for the connector of the electric heating element on the side wall of the lower mold core 40.

[0036] In this embodiment, the pushing module 120 includes an inclined guide post 121 disposed on the lower surface of the upper mold base 10. The lower end of the inclined guide post 121 is inclined toward the side away from the lower mold core 40. The slide block 110 is provided with an inclined guide hole 150 adapted to the inclined guide post 121. During processing, the upper mold base 10 descends, causing the lower end of the inclined guide post 121 to insert into the inclined guide hole 150. Then, under the action of the inclined guide post 121, the slide block 110 slides toward the lower mold core 40. When the mold is closed, the slide block 110 presses the plug seat 70 against the side wall of the movable groove 50 under the action of the inclined guide post 121. Furthermore, the pushing module 120 also includes a fixed seat 122. The surface is provided with a mounting groove 101 for fixing the fixed seat 122. The inclined guide post 121 passes through the mounting groove 101 and the fixed seat 122. On the lower surface of the fixed seat 122, a positioning protrusion 160 is provided downward on the side of the inclined guide post 121 away from the upper mold core 30. The side wall of the positioning protrusion 160 facing the upper mold core 30 is provided with an upper inclined surface 161. The lower end of the upper inclined surface 161 is inclined towards the side away from the upper mold core 30. The slide 110 is provided with a lower inclined surface 170 parallel to the upper inclined surface 161. When the mold is closed, the upper inclined surface 161 abuts against the lower inclined surface 170 to enhance the tightness of the slide 110 and the plug seat 70 against the side wall of the movable groove 50.

[0037] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An injection mold capable of forming a composite groove structure, characterized in that, The system includes an upper mold base and a lower mold base that are positioned vertically opposite each other, as well as an upper mold core and a lower mold core. The upper mold core and the lower mold core are respectively embedded in the opposite side walls of the upper mold base and the lower mold core. The opposite side walls of the upper mold core and the lower mold core are respectively provided with an upper injection molding groove and a lower injection molding groove. The upper surface of the lower mold core is provided with a movable groove that penetrates its outer side wall. The inner wall of the movable groove near the lower injection molding groove is provided with a connecting groove that directly communicates with the lower injection molding groove. A sealing device is slidably disposed within the movable groove. The plug seat of the connecting groove is provided with an extension that is adapted to the connecting groove and extends into the lower injection molding groove. The extension is detachably provided with an inner cavity forming rod in the left-right direction. The inner wall of the lower injection molding groove is provided with protrusions on both sides of the extension. The upper surface of the lower mold base is provided with a sliding groove for the movable groove. The sliding groove is provided with a slide block that drives the plug seat to slide left and right. The upper mold base is provided with a pushing module that pushes the slide block toward or away from the lower mold core.

2. The injection mold for forming a moldable composite groove structure according to claim 1, characterized in that, The opposing sidewalls of the two protrusions are tightly fitted with the sidewall of the extension, and the bottom surface of the connecting groove is lower than the bottom surface of the injection molding groove; when assembled in place, the protrusions and the extension are flush with the end face of the slide away from the slide.

3. The injection mold for forming a moldable composite groove structure according to claim 2, characterized in that, The longitudinal section of the extension is square and the end face of the end that extends into the lower injection molding groove is a vertical plane. The upper and lower surfaces of the extension are flush with the upper and lower surfaces of the plug seat, respectively. The inner cavity forming rod is vertically arranged on the vertical plane.

4. The injection mold for forming a moldable composite groove structure according to claim 3, characterized in that, The end of the plug seat near the lower mold core has arc-shaped chamfers on both the front and rear sides. The movable groove has an arc-shaped recess at the connection between the side wall near the lower mold core and its front and rear side walls, which is adapted to the arc-shaped chamfers.

5. The injection mold for forming a moldable composite groove structure according to claim 3, characterized in that, The upper surface of the plug seat is higher than the upper surface of the lower mold core, and the lower surface of the upper mold core is provided with a clearance groove corresponding to the upper end of the plug seat and the extension.

6. The injection mold for forming a moldable composite groove structure according to claim 1, characterized in that, The plug seat is rectangular in shape and arranged in the left-right direction. On the upper surface of the slide, a positioning step is recessed at the end of the plug seat opposite to the mold core. The plug seat is detachably mounted on the positioning step.

7. The injection mold for forming a moldable composite groove structure according to claim 6, characterized in that, The end face of the plug seat opposite to the lower mold core is provided with a horizontally penetrating fixing hole that is adapted to the inner cavity forming rod. The plug seat is provided with an annular countersunk hole around the fixing hole. The inner cavity forming rod is provided with an annular positioning platform corresponding to the annular countersunk hole. When assembled in place, the bottom surface of the annular countersunk hole, the annular positioning platform, and the longitudinal sidewall of the positioning step are horizontally pressed against each other.

8. The injection mold for forming a moldable composite groove structure according to claim 7, characterized in that, The end of the plug seat facing away from the lower mold core has a positioning rib on its lower surface along the front-back direction, and the upper surface of the positioning step has a positioning groove that matches the positioning rib.

9. The injection mold for forming a moldable composite groove structure according to claim 1, characterized in that, The pushing module includes an inclined guide post disposed on the lower surface of the upper mold base. The lower end of the inclined guide post is inclined toward the side away from the lower mold core. The slide block is provided with an inclined guide hole adapted to the inclined guide post.

10. The injection mold for forming a moldable composite groove structure according to claim 9, characterized in that, The pushing module also includes a fixed base. The lower surface of the upper mold base is provided with a mounting groove for fixing the fixed base. The inclined guide post passes through the mounting groove and the fixed base. The lower surface of the fixed base is provided with a positioning protrusion facing downward on the side of the inclined guide post away from the upper mold core. The side wall of the positioning protrusion facing the upper mold core is provided with an upper inclined surface. The lower end of the upper inclined surface is inclined towards the side away from the upper mold core. The slide block is provided with a lower inclined surface parallel to the upper inclined surface. When the mold is closed, the upper inclined surface abuts against the lower inclined surface.

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