Non-contact test pencil shell injection mold

Abstract

The non-contact test pencil shell injection mold comprises an upper mold, a lower mold, a core pulling unit and a sliding unit, an upper mold core is installed at the bottom of the upper mold, an upper mold cavity is formed in the upper mold core, a lower mold core is installed at the top of the lower mold, a lower mold cavity is formed in the lower mold core, and the upper mold cavity and the lower mold cavity are opposite to each other and form an injection mold cavity. Printing modules are arranged on the two sides of the lower mold cavity respectively, printing patterns are arranged on the surfaces of the printing modules, the core pulling unit is arranged on one side of the lower mold, the mold core end of the core pulling unit can be inserted into the injection mold cavity, and the sliding unit is arranged on the other side of the lower mold and is in butt joint with the mold core end of the core pulling unit. According to the injection mold, the upper mold groove, the lower mold groove, the core pulling unit and the sliding unit form the mold cavity for injection molding of the shell, so that the structural design of the injection mold is reasonable, and meanwhile, a corresponding model or specification is directly printed on the surface of the shell through a printed pattern on the printing module when the shell is subjected to injection molding, so that injection molding and printing integrated molding of the shell is realized; the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, and particularly relates to an injection mold for the shell of a non-contact electric pen. Background Art

[0002] An injection mold is a tool for producing plastic products and is also a tool for endowing plastic products with a complete structure and precise dimensions. Injection molding is a processing method used when mass-producing some parts with complex shapes. Specifically, it refers to injecting the heat-melted plastic into the mold cavity under high pressure by an injection molding machine, and after cooling and solidifying, a formed product is obtained.

[0003] When producing a non-contact electric pen, an injection mold is required to inject the shell and the pen clip of the non-contact electric pen, and after injecting the shell, information such as specifications or models needs to be printed on the surface of the shell; however, in the prior art, after the shell is injection-molded by an injection mold, a printing machine or a laser machine is used to print or engrave on the surface of the shell, so the production efficiency of the non-contact electric pen is poor, and a printing machine or a laser machine needs to be purchased additionally, resulting in an increase in enterprise costs. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an injection mold for the shell of a non-contact electric pen with a reasonable structural design and integrated injection and printing.

[0005] To solve the above technical problems, the utility model can adopt the following technical solutions:

[0006] An injection mold for the shell of a non-contact electric pen includes an upper mold, a lower mold, a core-pulling unit, and a sliding unit. An upper mold core is installed at the bottom of the upper mold, and an upper mold groove is provided on the upper mold core. A lower mold core is installed at the top of the lower mold, and a lower mold groove is provided on the lower mold core. The upper mold groove and the lower mold groove are arranged opposite to each other and form an injection mold cavity. Printing modules are respectively arranged on both sides of the lower mold groove, and printing patterns matching the lower mold groove are provided on the surfaces of the printing modules. The core-pulling unit is arranged on one side of the lower mold, and its core end can be inserted into the injection mold cavity. The sliding unit is arranged on the other side of the lower mold and is docked with the core end of the core-pulling unit.

[0007] In one embodiment, printing protrusions are arranged on the inner walls of the upper mold groove and / or the lower mold groove.

[0008] In one embodiment, the core-pulling unit includes a fixed seat, a driving member, a moving block, and a core shaft. The fixed seat is arranged on the side of the lower mold, the driving member is installed on the fixed seat, the moving block is connected to the conveying end of the driving member, the core shaft is placed in the injection mold cavity and is connected to the moving block, and the driving member drives the moving block to move, thereby driving the core shaft to move in the injection mold cavity.

[0009] In one embodiment, a positioning boss is provided at the end of the mandrel.

[0010] In one embodiment, the sliding unit includes a core-pulling slider and an inclined guide rod. The core-pulling slider is movably installed in the lower mold, and is provided with an inclined guide hole. An elastic member is provided between the core-pulling slider and the lower mold core. The inclined guide rod is placed in the inclined guide hole and is connected to the upper mold. When the upper mold and the lower mold are opened / closed, the inclined guide rod is driven by the upper mold to move in the inclined guide hole, thereby driving the core-pulling slider to slide.

[0011] In one embodiment, the core-pulling slider is provided with a positioning groove corresponding to the positioning boss.

[0012] In one embodiment, an upper template is installed on the top of the upper mold, and the upper template is provided with a gate communicating with the injection mold cavity.

[0013] In one embodiment, the injection mold cavity includes a first molding cavity and a second molding cavity, and the printing module is located in the first molding cavity.

[0014] In one embodiment, an ejection unit is provided at the bottom of the lower mold. The ejection unit includes mold feet connected to both sides of the bottom of the lower mold and a top plate located between the two mold feet. Ejector pins cooperating with the first molding cavity and the second molding cavity are respectively provided on the top plate.

[0015] In one embodiment, bottom plates are provided at the bottoms of the mold feet on both sides. Advantageous Effects

[0016] For the injection mold for the non-contact electric pen shell of the present utility model, a core-pulling unit and a sliding unit are respectively provided on both sides of the lower mold. Through the cooperation of the upper mold groove, the lower mold groove, the core-pulling unit and the sliding unit, an injection mold cavity for injection molding of the cylindrical shell is formed, so that the structural design of the injection mold is reasonable. At the same time, printing modules are respectively provided on both sides of the lower mold groove, and the surface of the printing module has a printed pattern. Through the printed pattern on the printing module, the corresponding model or specification can be directly printed on the surface of the shell when the shell is injection molded, so as to realize the integrated injection molding and printing of the non-contact electric pen shell, improve production efficiency, and enable the enterprise to eliminate the need to purchase a printing machine or a laser machine, reducing the production cost of the enterprise. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the injection mold for the non-contact electric pen shell of the present utility model;

[0018] Figure 2 is a schematic diagram of the upper mold of the injection mold for the non-contact electric pen shell of the present utility model;

[0019] Figure 3Schematic diagram of the lower die of the injection mold for the non-contact voltage detector housing of the present utility model;

[0020] Figure 4 Schematic diagram of the docking of the core-pulling unit and the sliding unit of the injection mold for the non-contact voltage detector housing of the present utility model;

[0021] Figure 5 Schematic diagram of the core-pulling unit of the injection mold for the non-contact voltage detector housing of the present utility model;

[0022] Figure 6 Schematic diagram of the sliding unit of the injection mold for the non-contact voltage detector housing of the present utility model;

[0023] Figure 7 Schematic diagram of the ejecting unit of the injection mold for the non-contact voltage detector housing of the present utility model.

[0024] 100. Upper die; 110. Upper die core; 111. Upper die groove; 112. Printed protrusion; 120. Upper template; 121. Gate;

[0025] 200. Lower die; 210. Lower die core; 211. Lower die groove; 220. Printed module;

[0026] 300. Core-pulling unit; 310. Fixed seat; 320. Driving part; 330. Moving block; 340. Core shaft; 341. Positioning convex column;

[0027] 400. Sliding unit; 410. Core-pulling slider; 411. Oblique guide hole; 412. Positioning groove; 420. Oblique guide rod; 430. Elastic part;

[0028] 500. Ejecting unit; 510. Die foot; 520. Top plate; 530. Ejector pin;

[0029] 600. Bottom plate. Detailed implementation manners

[0030] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0031] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the specification of this utility model herein are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] Please refer to Figures 1 to 6 , a non-contact voltage tester housing injection mold, comprising an upper mold 100, a lower mold 200, a core-pulling unit 300 and a sliding unit 400. An upper mold core 110 is installed at the bottom of the upper mold 100, and the upper mold core 110 is provided with an upper mold cavity 111. A lower mold core 210 is installed at the top of the lower mold 200, and the lower mold core 210 is provided with a lower mold cavity 211. The upper mold cavity 111 and the lower mold cavity 211 are arranged opposite to each other and form an injection mold cavity. Printing modules 220 are respectively arranged on both sides of the lower mold cavity 211, and printing patterns matching the lower mold cavity 211 are arranged on the surfaces of the printing modules 220. The core-pulling unit 300 is arranged on one side of the lower mold 200, and its core end can be inserted into the injection mold cavity. The sliding unit 400 is arranged on the other side of the lower mold 200 and is docked with the core end of the core-pulling unit 300.

[0034] Specifically, in this embodiment, the upper mold cavity 111 is arranged on the upper mold core 110, the lower mold cavity 211 is arranged on the lower mold core 210, and the core-pulling unit 300 and the sliding unit 400 are respectively arranged on both sides of the lower mold 200. Through the cooperation among the upper mold cavity 111, the lower mold cavity 211, the core-pulling unit 300 and the sliding unit 400, an injection mold cavity is formed. The injection mold cavity includes a first molding cavity and a second molding cavity. The first molding cavity is used for injection molding the housing of the non-contact voltage tester and cooperates with the core-pulling unit 300 and the sliding unit 400. The second molding cavity is used for injection molding the pen clip of the non-contact voltage tester, so that the injection mold can simultaneously perform injection molding on the housing and the pen clip, improve the production efficiency of the non-contact voltage tester, and make the overall structure of the injection mold simple and reasonable in design.

[0035] In addition, two sets of printing modules 220 are arranged on the lower die insert 210. The two sets of printing modules 220 are respectively located on both sides of the lower die groove 211, and printing patterns are arranged on the surfaces of the two sets of printing modules 220 or one of the sets of printing modules. The printing patterns are set according to actual requirements. When injecting plastic into the first forming cavity of the injection mold cavity, due to the printing patterns on the printing modules 220, when the shell of the non-contact type electroscope pen is injection-molded in the first forming cavity, the required patterns such as models or specifications can be printed, so as to realize the integrated injection molding and printing of the shell of the non-contact type electroscope pen, improve production efficiency, and enable the enterprise to avoid purchasing printing machines or laser machines, reducing the production cost of the enterprise.

[0036] Since in this embodiment, it is only necessary to print patterns on the shell of the non-contact type electroscope pen, the printing modules 220 are arranged on both sides of the lower die groove 211 of the first forming cavity.

[0037] Of course, in order to print patterns on multiple places of the shell of the non-contact type electroscope pen, printing protrusions 112 can also be arranged on the inner walls of the upper die groove 111 and / or the lower die groove 211 of the first forming cavity. Through the printing protrusions 112, the set patterns can be printed when the shell is injection-molded to meet the injection molding requirements of the shell of the non-contact type electroscope pen.

[0038] Please refer to Figures 3 to 6 , in order to realize the injection molding of the cylindrical shell, the core-pulling unit 300 in this embodiment includes a fixed seat 310, a driving member 320, a moving block 330 and a core shaft 340. The fixed seat 310 is arranged on the side of the lower die 200. The driving member 320 is installed on the fixed seat 310. The moving block 330 is connected to the conveying end of the driving member 320. The core shaft 340 is placed in the injection mold cavity and is connected to the moving block 330. The driving member 320 drives the moving block 330 to move, thereby driving the core shaft 340 to move in the injection mold cavity. At the same time, the sliding unit 400 includes a core-pulling slider 410 and an inclined guide rod 420. The core-pulling slider 410 is movably installed on the lower die 200 and is provided with an inclined guide hole 411. An elastic member 430 is arranged between the core-pulling slider 410 and the lower die insert 210. The inclined guide rod 420 is placed in the inclined guide hole 411 and is connected to the upper die 100. When the upper die 100 and the lower die 200 are opened / closed, the inclined guide rod 420 is driven by the upper die 100 to move in the inclined guide hole 411, thereby driving the core-pulling slider 410 to slide.

[0039] During injection molding, the driving member 320 drives the moving block 330 to move. When the moving block 330 moves, it will drive the mandrel 340 to move along the first molding cavity. At the same time, the upper mold 100 drives the upper mold core 110 to move. When the upper mold 100 moves, it will drive the inclined guide rod 420 to insert into the inclined guide hole 411 of the core-pulling slider 410. Since the inclined guide rod 420 and the inclined guide hole 411 are inclined, the combination of the two will drive the core-pulling slider 410 to move, so that the core-pulling slider 410 is docked with the mandrel 340. Then, through the cooperation of the upper mold groove 111 and the lower mold groove 211, an injection mold cavity is formed. Injecting the raw material into the injection mold cavity can realize the injection molding of the shell. After the shell is formed, the driving member 320 drives the moving block 330 to move in the reverse direction and reset, so that the mandrel 340 is withdrawn from the first molding cavity. At the same time, the upper mold 100 and the lower mold 200 are opened, and when the upper mold 100 moves, it will drive the inclined guide rod 420 to move. The inclined guide rod 420 combined with the elastic member 430 will drive the core-pulling slider 410 to reset, so that the demolding of the shell can be realized. Finally, the overall structure of the non-contact type electroscope shell injection mold is simple and reasonable in design.

[0040] Moreover, in order to ensure the cooperation between the core-pulling unit 300 and the sliding unit 400, in this embodiment, a positioning convex column 341 is provided at the end of the mandrel 340, and a positioning groove 412 corresponding to the positioning convex column 341 is provided on the core-pulling slider 410. When the mandrel 340 in the core-pulling unit 300 is docked with the core-pulling slider 410, the positioning convex column 341 of the mandrel 340 will be inserted into the positioning groove 412 of the core-pulling slider 410, so as to ensure the docking between the core-pulling unit 300 and the sliding unit 400 and facilitate the injection molding of the shell.

[0041] Finally, in order to realize the injection molding of the shell and the pen clip of the non-contact type electroscope, therefore, in this embodiment, an upper template 120 is installed on the top of the upper mold 100, and a gate 121 communicating with the injection mold cavity is opened on the upper template 120. The raw material can be injected into the injection mold cavity through the gate 121, so as to realize the injection molding of the shell and the pen clip; in addition, a ejecting unit 500 is provided at the bottom of the lower mold 200. The ejecting unit 500 includes mold feet 510 connected to both sides of the bottom of the lower mold 200 and a top plate 520 located between the two mold feet 510. Ejector pins 530 cooperating with the first molding cavity and the second molding cavity are respectively provided on the top plate 520, and a bottom plate 600 is provided at the bottom of the two mold feet 510 on both sides. The shell in the first molding cavity and the pen clip in the second molding cavity can be demolded through the top plate 520 and the ejector pins 530.

[0042] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Any person skilled in the art can smoothly implement the present utility model according to what is shown in the accompanying drawings of the specification and what is described above; however, any minor changes, modifications and equivalent variations made by those skilled in the art within the scope of the technical solution of the present utility model by using the technical content disclosed above are equivalent embodiments of the present utility model; at the same time, any changes, modifications and equivalent variations made to the above embodiments based on the substantial technology of the present utility model still fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A non-contact electric tester housing injection mold, characterized in that: The mold comprises an upper mold, a lower mold, a core pulling unit and a sliding unit. An upper mold core is installed at the bottom of the upper mold, and an upper mold core is provided with an upper mold groove. A lower mold core is installed at the top of the lower mold, and the lower mold core is provided with a lower mold groove. The upper mold groove and the lower mold groove are arranged opposite to each other to form an injection mold cavity. Printing modules are respectively provided on both sides of the lower mold groove, and printed patterns matching the lower mold groove are provided on the surface of the printing module. The core pulling unit is arranged on one side of the lower mold, and its core end can be inserted into the injection mold cavity. The sliding unit is arranged on the other side of the lower mold and docked with the core end of the core pulling unit.

2. The non-contact electric tester housing injection mold according to claim 1, characterized in that: The inner wall of the upper die groove and / or the lower die groove is provided with a printed protrusion.

3. The non-contact electric tester housing injection mold according to claim 1, characterized in that: The core pulling unit includes a fixed seat, a driving member, a moving block and a core shaft. The fixed seat is arranged on the side of the lower mold, the driving member is installed on the fixed seat, the moving block is connected to the conveying end of the driving member, the core shaft is placed in the injection mold cavity and connected to the moving block. The driving member drives the moving block to move, thereby driving the core shaft to move in the injection mold cavity.

4. The non-contact electric tester housing injection mold according to claim 3, characterized in that: The end of the core shaft is provided with a positioning boss.

5. The non-contact electric tester housing injection mold according to claim 4, characterized in that: The sliding unit includes a core-pulling slider and an inclined guide rod. The core-pulling slider can be movably installed on the lower mold and is provided with an inclined guide hole. An elastic member is provided between the core-pulling slider and the lower mold core. The inclined guide rod is placed in the inclined guide hole and is connected to the upper mold. When the upper mold and the lower mold are opened / closed, the inclined guide rod is driven by the upper mold to move in the inclined guide hole, thereby driving the core-pulling slider to slide.

6. The non-contact electric tester housing injection mold according to claim 5, characterized in that: The core-pulling slide block is provided with a positioning groove corresponding to the positioning boss.

7. The non-contact electric tester housing injection mold according to claim 1, characterized in that: An upper mold plate is installed on the top of the upper mold, and the upper mold plate is provided with a gate communicated with the injection mold cavity.

8. The non-contact electric tester housing injection mold according to claim 1, characterized in that: The injection mold cavity comprises a first molding cavity and a second molding cavity, and the printing module is located in the first molding cavity.

9. The non-contact electric tester housing injection mold according to claim 8, characterized in that: The bottom of the lower mold is provided with an ejection unit, which includes mold feet connected to both sides of the bottom of the lower mold and a top plate located between the two mold feet, and ejector pins cooperating with the first molding cavity and the second molding cavity are respectively arranged on the top plate.

10. The non-contact electric tester housing injection mold according to claim 9, characterized in that: Bottom plates are arranged at the bottoms of the mold feet on both sides.

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