阅读说明：本技术 双色按键的注塑模具 (Injection mold of double-color key ) 是由 郭荣灼 卢荣江 于 2019-09-30 设计创作，主要内容包括：本发明涉及模具技术领域,尤其是指一种双色按键的注塑模具,下模座装设有位于浮动板一侧的压合传动组件,该压合传动组件包括安装座、设置于安装座的导杆、插接于导杆的联动件以及滑动装设于安装座的第一驱动杆,该第一驱动杆一端抵接联动件的尾端部上侧面,另一端向上延伸至凸出于下模座的上侧面,该联动件的首端部上侧面抵接于浮动板的下侧面,所述浮动板固定装设有延伸插入于下模板内的顶针和延伸至凸出于下模座上侧面的第二驱动杆。通过巧妙的结构设计,实现在模具注塑过程中达到直接制成双色按键,无需后续的组合工序,大大减少了双色按键生产的工作量。(The invention relates to the technical field of molds, in particular to an injection mold of a double-color key, wherein a lower mold base is provided with a press-fit transmission assembly positioned on one side of a floating plate, the press-fit transmission assembly comprises a mounting seat, a guide rod arranged on the mounting seat, a linkage member inserted in the guide rod and a first driving rod arranged in the mounting seat in a sliding manner, one end of the first driving rod is abutted against the upper side surface of the tail end part of the linkage member, the other end of the first driving rod extends upwards to protrude out of the upper side surface of the lower mold base, the upper side surface of the head end part of the linkage member is abutted against the lower side surface of the floating plate, and the floating plate is fixedly provided with a thimble extending into the lower mold plate and. Through ingenious structural design, the direct manufacture of the double-color keys in the injection molding process of the mold is realized, subsequent combination procedures are not needed, and the workload of double-color key production is greatly reduced.)

1. Injection mold of double-colored button, including die holder (1), install in lower bolster (11) of die holder (1) and slide and install in unsteady board (12) of die holder (1), its characterized in that: the lower die holder (1) is provided with a press-fit transmission assembly (2) located on one side of the floating plate (12), the press-fit transmission assembly (2) comprises a mounting seat (21), a guide rod (22) arranged on the mounting seat (21), a linkage piece (23) inserted into the guide rod (22) and a first driving rod (24) arranged on the mounting seat (21) in a sliding mode, one end of the first driving rod (24) abuts against the upper side face of the tail end of the linkage piece (23), the other end of the first driving rod extends upwards to protrude out of the upper side face of the lower die holder (1), the upper side face of the head end of the linkage piece (23) abuts against the lower side face of the floating plate (12), and the floating plate (12) is fixedly provided with an ejector pin (13) extending into the lower die plate (11) and a second driving rod (14) extending out of the upper side face of the lower.

2. The injection mold of the dual-color key according to claim 1, wherein: the lower die holder (1) is connected with a first-color upper die holder (3), a first clearance groove (31) vertically aligned with the second driving rod (14) is formed in the lower side face of the first-color upper die holder (3), and the upper side face of the first driving rod (24) is abutted to the lower side face of the first-color upper die holder (3).

3. The injection mold of the dual-color key according to claim 1, wherein: lower bolster (1) is connected with second colour upper die base (4), and this second colour upper die base (4) downside is provided with keeps away empty recess (41) with the vertical second of aliging of first actuating lever (24), second actuating lever (14) upper flank and second colour upper die base (4) downside butt.

4. The injection mold of the dual-color key according to claim 1, wherein: the mounting seat (21) is provided with a mounting groove (25), and the guide rod (22) penetrates through the linkage piece (23) and two ends of the guide rod are respectively inserted into two side walls of the mounting groove (25).

5. The injection mold of the dual-color key according to claim 4, wherein: the die holder (1) is provided with fixed slot (15) with the lateral wall intercommunication, and the both sides wall of this fixed slot (15) all is provided with spacing recess (16) to inside extension, mount pad (21) are inlayed and are located in fixed slot (15), and the both sides wall of this mount pad (21) all is provided with spacing boss (26) of protrusion to spacing recess (16) in, the lateral wall intercommunication of mounting groove (25) and mount pad (21).

6. The injection mold of the dual-color key according to claim 1, wherein: the number of the pressing transmission components (2) is at least two, and the at least two pressing transmission components (2) are respectively arranged on two sides of the lower die holder (1).

7. The injection mold of the dual-color key according to claim 1, wherein: the number of the thimbles (13) and the second driving rods (14) is at least two, the thimbles (13) extend into the lower template (11), and the second driving rods (14) extend to protrude out of the upper side surface of the lower die holder (1).

Technical Field

The invention relates to the technical field of molds, in particular to an injection mold for a double-color key.

Background

The die is various dies and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The method realizes the processing of the shape of an article mainly by changing the physical state of a formed material, and enables a blank to be a tool of a workpiece with a specific shape and size under the action of external force. The method is widely applied to blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like. The die has a specific contour or cavity shape, and the blank can be separated (blanked) according to the contour shape by applying the contour shape with the cutting edge. The blank can obtain a corresponding three-dimensional shape by using the shape of the inner cavity. The mold generally comprises a movable mold and a fixed mold (or a male mold and a female mold), which can be separated or combined. When the blank is closed, the blank is injected into the die cavity for forming. The die is a precise tool, has a complex shape, bears the expansion force of a blank, has higher requirements on structural strength, rigidity, surface hardness, surface roughness and processing precision, and the development level of die production is one of important marks of the mechanical manufacturing level.

The existing electronic products basically need to assemble keys, the keys are mostly made of plastics, and the surfaces of the keys made of plastics often need to present some images, numbers or characters, so the key products need to present at least two colors to distinguish the key main body from the images, numbers or characters on the key main body. The manufacturing process of the double-color key is complicated, the manufacturing cost is increased, and the production efficiency and the final qualified rate of products are low.

Disclosure of Invention

The invention aims to solve the technical problem of providing an injection mold for a double-color key, which realizes that the double-color key is directly manufactured in the injection molding process of the mold through ingenious structural design, does not need subsequent combination procedures, and greatly reduces the workload of the production of the double-color key.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides an injection mold of double-colored button, includes the die holder, install in the lower bolster of die holder and slide and install in the unsteady board of die holder, the pressfitting drive assembly that is located unsteady board one side is installed to the die holder, this pressfitting drive assembly includes the mount pad, set up in the guide arm of mount pad, peg graft in the linkage of guide arm and slide and install in the first actuating lever of mount pad, the tail end portion upper flank of this first actuating lever one end butt linkage, the other end upwards extends to the side of going up of protrusion in the die holder, the head end portion upper flank butt of this linkage in the downside of unsteady board, unsteady board is fixed to be installed and extends to the thimble that inserts in the lower bolster and extend to the second actuating lever of protrusion in the lower bolster upper flank.

Preferably, the lower die holder is connected with a first color upper die holder, the lower side surface of the first color upper die holder is provided with a first clearance groove vertically aligned with the second driving rod, and the upper side surface of the first driving rod is abutted to the lower side surface of the first color upper die holder.

Preferably, the die holder is connected with the second colour upper die base, and this second colour upper die base downside is provided with the second of vertical alignment with the first actuating lever and keeps away empty recess, second actuating lever upper flank and second colour upper die base downside butt.

Preferably, the mounting seat is provided with a mounting groove, and the guide rod penetrates through the linkage member and two ends of the guide rod are respectively inserted into two side walls of the mounting groove.

Preferably, the die holder is provided with the fixed slot with the lateral wall intercommunication, and the both sides wall of this fixed slot all is provided with the spacing recess of inside extension, the mount pad inlays and locates in the fixed slot, and the both sides wall of this mount pad all is provided with the spacing boss of protrusion to spacing recess in, the mounting groove communicates with the lateral wall of mount pad.

Preferably, the number of the pressing transmission assemblies is at least two, and the at least two pressing transmission assemblies are respectively arranged on two sides of the lower die base.

Preferably, the number of the ejector pins and the number of the second driving rods are at least two, the ejector pins extend into the lower template, and the second driving rods extend to protrude out of the upper side surface of the lower die base.

The invention has the beneficial effects that: the utility model provides an injection mold of double-colored button, other structure parts of mould are not described in detail in this application, and these some parts can refer to prior art's injection mold, also can refer to the structure that the attached drawing shows, and the skilled person can obtain other mould structure parts that this application does not describe in detail under the condition of not paying inventive work, then combines to obtain a set of complete injection mold in this application.

In the actual injection molding production process, the first driving rod or the second driving rod is driven to move downwards due to the involution of the lower die holder and the upper die holder, when the first driving rod moves downwards, the tail end part of the linkage part is stressed, and when the upper side surface of the tail end part of the linkage part is stressed due to the arrangement of the guide rod, the head end part of the linkage part is stressed to be lifted upwards so that the floating plate moves upwards, the ejector pin finally moves upwards to protrude out of the upper side surface of the lower die core in the die cavity, and then injection molding is started to obtain the inner key cap with the first color, wherein the upper side surface of the inner key cap with the first color is provided with corresponding images, numbers or. When the second driving rod moves downwards, the floating plate is directly positioned by sinking under the force, finally the ejector pin moves downwards to enable the upper side surface of the ejector pin to be flush with the upper side surface of the lower mold core in the mold cavity, secondary injection molding is carried out immediately, the plastic wrap of the secondary injection molding is formed in the first color inner key cap, the upper side surface of the second color outer key cap wrapped in the first color inner key cap is flush with the image, the number or the character formed on the upper side surface of the first color inner key cap, and a double-color key product is obtained. The double-color key product is directly manufactured by twice injection molding, the subsequent processes such as combination are not needed, the manufacturing cost is greatly reduced, the operating efficiency is improved, and the creative practicability is strong.

Drawings

Fig. 1 is a schematic sectional view of the side structure of the lower die holder and the first color upper die holder after the dies are assembled.

Fig. 2 is an enlarged view of a portion a of fig. 1.

Fig. 3 is a sectional schematic view of the side structure of the lower die holder and the second color upper die holder after the dies are assembled.

Fig. 4 is an enlarged view of a portion B of fig. 3.

FIG. 5 is a partially exploded perspective view of the lower die holder of the present invention.

Fig. 6 is an exploded perspective view of the lower die holder and the stitching drive assembly of the present invention.

Fig. 7 is a schematic perspective view of the first color upper die holder according to the present invention.

FIG. 8 is a schematic perspective view of a second color upper die holder according to the present invention.

Detailed Description

The present invention will be further described with reference to the following examples for facilitating understanding of those skilled in the art, and the description of the embodiments is not intended to limit the present invention.

As shown in fig. 1 to 8, an injection mold for a dual-color key includes a lower die holder 1, a lower die plate 11 installed on the lower die holder 1, and a floating plate 12 installed on the lower die holder 1 in a sliding manner, wherein the lower die holder 1 is provided with a press-fit transmission assembly 2 located on one side of the floating plate 12, the press-fit transmission assembly 2 includes a mounting seat 21, a guide rod 22 installed on the mounting seat 21, a linkage member 23 inserted in the guide rod 22, and a first driving rod 24 installed on the mounting seat 21 in a sliding manner, one end of the first driving rod 24 abuts against an upper side of a tail end of the linkage member 23, the other end of the first driving rod extends upward to protrude from an upper side of the lower die holder 1, an upper side of a head end of the linkage member 23 abuts against a lower side of the floating plate 12, and the floating plate 12 is fixedly provided with a thimble 13 extending into the lower die plate 11 and a.

In the injection mold of the dual-color key of the embodiment, other structural parts of the mold are not described in detail in the present application, and the parts can refer to the injection mold in the prior art and also refer to the structure shown in the drawings, so that a person skilled in the art can obtain other structural parts of the mold which are not described in detail in the present application without creative labor, and then combine the structural parts of the mold with the structural parts of the mold to obtain a set of complete injection mold.

In the actual injection molding production process, the first driving rod 24 or the second driving rod 14 is driven to move downwards due to the involution of the lower die holder 1 and the upper die holder, when the first driving rod 24 moves downwards, the tail end part of the linkage 23 is stressed, and when the upper side surface of the tail end part of the linkage 23 is stressed due to the arrangement of the guide rod 22, the head end part of the linkage 23 is stressed to be lifted upwards so that the floating plate 12 moves upwards, finally the ejector pin 13 moves upwards to protrude out of the upper side surface of the lower die core in the die cavity, and then injection molding is started to obtain the inner key cap with the first color, wherein the upper side surface of the inner key cap with the first color is provided with corresponding images, numbers or characters. When the second driving rod 14 moves downwards, the floating plate 12 is directly stressed to sink and position, finally the thimble 13 moves downwards to enable the upper side surface of the thimble 13 to be flush with the upper side surface of the lower mold core in the mold cavity, secondary injection molding is carried out immediately, the plastic coated by the secondary injection molding is coated on the first color inner key cap for molding, and the upper side surface of the second color outer key cap coated on the first color inner key cap is flush with the image, the number or the character molded on the upper side surface of the first color inner key cap, so that a two-color key product is obtained. The double-color key product is directly manufactured by twice injection molding, the subsequent processes such as combination are not needed, the manufacturing cost is greatly reduced, the operating efficiency is improved, and the creative practicability is strong.

As shown in fig. 1 to 4, taking injection molding of a two-color key with a "0" number as an example, the first color inner key cap is subjected to injection molding to obtain an inner key cap with a "0" number protruding from an upper side surface, and because the thimble 13 protrudes from the upper side surface of the lower mold core in the mold cavity, a hole groove appears on the inner side surface of the inner key cap, the hole groove is communicated with the upper side surface of the inner key cap to conduct an inner ring and an outer ring of the "0" number to form a diversion channel, when the thimble 13 sinks to be flush with the upper side surface of the lower mold core in the mold cavity during secondary injection molding, the diversion channel is conducted at the moment, and when the plastic fluid is subjected to secondary injection molding to form an outer key cap by wrapping the inner key cap, the injection molding of the special number is also completed according to the special number, so that the true direct mold injection molding of the inner ring to obtain the.

In this embodiment, the lower die holder 1 is connected to a first color upper die holder 3, a first clearance groove 31 vertically aligned with the second driving rod 14 is disposed on a lower side of the first color upper die holder 3, and an upper side of the first driving rod 24 abuts against a lower side of the first color upper die holder 3. The first color upper die holder 3 is matched with the lower die holder 1 through the design of the first clearance groove 31, only pressure is applied to the first driving rod 24 to enable the floating plate 12 to drive the thimble 13 to lift upwards, and then the first color injection molding operation is completed.

In this embodiment, the lower die holder 1 is connected to a second color upper die holder 4, a second clearance groove 41 vertically aligned with the first driving rod 24 is formed in the lower side surface of the second color upper die holder 4, and the upper side surface of the second driving rod 14 abuts against the lower side surface of the second color upper die holder 4. The second color upper die holder 4 only applies pressure to the second driving rod 14 to drive the floating plate 12 to drive the thimble 13 to sink when being aligned with the lower die holder 1 through the design of the second clearance groove 41, and then second color injection molding operation is completed.

The first color upper die holder 3 and the second color upper die holder 4 can respectively correspond to one lower die holder 1, so that a product does not need to be moved, and only the first color upper die holder 3 needs to be moved after being separated, and then the second color upper die holder 4 needs to be closed to finish the second injection molding operation. This saves costs without having to manufacture two identical sets of lower die holders 1.

Certainly also can directly make two sets of the same die holders 1, then one set of die holder 1 corresponds first color upper die base 3, another set of die holder 1 corresponds second color upper die base 4, first color upper die base 3 is to closing the back of moulding plastics and accomplishing, the half-finished product of interior key cap moves to another set of die holder 1, 4 pressfitting injection moulding of second color upper die base immediately, obtain double-colored button, this mode reaches direct mould injection moulding and makes double-colored button equally, also need not to change the mechanical mechanism of drive upper die base in addition, only need increase the manipulator and take out the half-finished product of interior key cap and put into another set of die holder 1 can, the practicality is stronger.

In this embodiment, the mounting seat 21 is provided with a mounting groove 25, and the guide rod 22 passes through the linkage 23 and two ends of the guide rod are respectively inserted into two side walls of the mounting groove 25. The guide rod 22 and the linkage piece 23 are embedded into the installation groove 25 by arranging the installation groove 25, so that the space is saved, and the guide rod and the linkage piece are conveniently arranged in the lower die holder 1.

In this embodiment, lower die holder 1 is provided with fixed slot 15 with the lateral wall intercommunication, and the both sides wall of this fixed slot 15 all is provided with the spacing recess 16 of inside extension, mount pad 21 inlays and locates in fixed slot 15, and the both sides wall of this mount pad 21 all is provided with the spacing boss 26 of protrusion to spacing recess 16 in, mounting groove 25 communicates with the lateral wall of mount pad 21. Mounting groove 25 communicates the 21 lateral walls of mount pad, and fixed slot 15 also communicates the 1 lateral walls of die holder simultaneously, and mounting groove 25 communicates to the lateral wall of die holder 1 promptly, can directly observe the operation condition of linkage 23 like this, if the transmission unusual can directly seek the reason and solve, improves the operating efficiency.

In this embodiment, the number of the pressing transmission assemblies 2 is at least two, and the at least two pressing transmission assemblies 2 are respectively disposed on two sides of the lower die holder 1. The multiple designs of the pressing transmission assembly 2 are beneficial to enhancing the reliability of the jacking floating plate 12, and the normal operation of injection molding operation is ensured.

In this embodiment, the number of the ejector pins 13 and the number of the second driving rods 14 are at least two, the ejector pins 13 extend and are inserted into the lower mold plate 11, and the second driving rods 14 extend to protrude from the upper side surface of the lower mold base 1. A plurality of thimbles 13 are designed to be matched with the condition with a closed inner ring like a number 0, so that the operation flexibility is improved. The plurality of second driving rods 14 are provided to help enhance the stability of the floating plate 12 in sinking and fixing, so that the normal operation of injection molding is ensured, and the quality of products is also ensured.

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a number" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

The above-mentioned embodiments only express a plurality of embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.