Injection molding tool

Abstract

The injection molding tool comprises an injection molding table, a first driving part and an ejector pin, a plurality of stopping protruding blocks are arranged on the injection molding table, a positioning groove is defined by the stopping protruding blocks, a first through hole is formed in the positioning groove, the ejector pin is connected with the driving end of the first driving part, and a second through hole is formed in the first through hole. And the ejector pin movably penetrates through the first through hole. The injection molding tool provided by the utility model can effectively guarantee the positioning effect and the fixing effect of the secondary injection molding of the hard shell, so that the yield of the secondary injection molding is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an injection molding tool. Background Art

[0002] The car key shell includes a hard shell and a key silicone provided on the hard shell. In the manufacturing process of the car key shell, the hard shell is usually prepared first, and then the key silicone is secondary injection molded on the hard shell. In the existing secondary injection molding process, the hard shell is directly placed in the mold, and its positioning effect is poor, resulting in a high defect rate of the current secondary injection molding of the car key shell. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an injection molding tool to solve the problem of poor positioning effect of the current automobile key shell in the secondary injection molding process.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an injection molding tool, including an injection molding table, a first driving member and an ejector pin, the injection molding table is provided with a plurality of stop protrusions, the plurality of stop protrusions are enclosed to form a positioning groove, a first through hole is opened in the positioning groove, the ejector pin is connected to the driving end of the first driving member, and the ejector pin can movably pass through the first through hole.

[0005] Furthermore, the plurality of stop protrusions include two first protrusions and two second protrusions, the two first protrusions are arranged opposite to each other, and the two second protrusions are arranged opposite to each other.

[0006] Furthermore, the thickness of the first bump is smaller than the thickness of the second bump.

[0007] Furthermore, a guide groove is provided on the stop protrusion.

[0008] Furthermore, an engaging protrusion is provided in the positioning groove.

[0009] Furthermore, the injection molding table includes a rectangular positioning plate, a plurality of the stop protrusions are arranged on the positioning plate, and first limiting columns are arranged at the four corners of the positioning plate.

[0010] Furthermore, a positioning column is also provided on the positioning plate.

[0011] Furthermore, it also includes a top plate, which is connected to the driving end of the first driving member, and the ejector pin is arranged on the top plate.

[0012] Furthermore, it also includes a guide column and a second limiting column, the guide column and the second limiting column are both arranged on the injection molding table, the top plate is provided with a second through hole and a third through hole, the guide column can movably pass through the second through hole, the second limiting column can movably pass through the third through hole, and the second limiting column is provided with a limiting protrusion.

[0013] Furthermore, it also includes a vacuum adsorption component, which includes a second driving component, a fixed plate and a vacuum suction nozzle. The second driving component is arranged on the injection molding table, the fixed plate is connected to the driving end of the second driving component, and the vacuum suction nozzle is arranged on the fixed plate.

[0014] The beneficial effect of the utility model is that the injection molding tool provided by the utility model can cooperate with the injection mold, and the hard shell of the car remote control shell is positioned through the positioning groove on the injection molding table, and the first driving member drives the ejector pin to lift the hard shell in the positioning groove to a preset height, and then the injection mold is used to perform secondary injection molding on the hard shell. The injection molding tool provided by the utility model can effectively ensure the positioning effect and fixing effect of the secondary injection molding of the hard shell, thereby improving the yield rate of the secondary injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of an injection molding tool in one embodiment of the utility model;

[0016] Figure 2 for Figure 1 The structural diagram of the middle positioning plate;

[0017] Figure 3 for Figure 1 Schematic diagram of the structure of the middle positioning plate, the top plate and the first driving member.

[0018] Description of labels:

[0019] 1. Injection molding table; 11. Stopping protrusion; 111. First protrusion; 112. Second protrusion; 113. Guide groove; 12. Positioning groove; 13. First through hole; 14. Engaging protrusion; 15. Positioning plate;

[0020] 2. A first driving member;

[0021] 3. Ejector pin;

[0022] 4. The first limiting column;

[0023] 5. Positioning column;

[0024] 6. top plate; 61. second through hole; 62. third through hole;

[0025] 7. Guide column;

[0026] 8. Second limiting column; 81. Limiting protrusion;

[0027] 9. Vacuum adsorption assembly; 91. Second driving member; 92. Fixed plate; 93. Vacuum suction nozzle. DETAILED DESCRIPTION

[0028] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0029] Please refer to Figures 1 to 3 An injection molding tool comprises an injection molding table 1, a first driving member 2 and an ejector pin 3. The injection molding table 1 is provided with a plurality of stop protrusions 11, and a positioning groove 12 is formed between the plurality of stop protrusions 11. A first through hole 13 is opened in the positioning groove. The ejector pin 3 is connected to the driving end of the first driving member 2, and the ejector pin 3 can movably pass through the first through hole 13.

[0030] As can be seen from the above description, the beneficial effect of the utility model is that the injection molding tool provided by the utility model can cooperate with the injection mold, and the hard shell of the car remote control shell is positioned through the positioning groove 12 on the injection molding table 1, and the first driving member 2 drives the ejector pin 3 to lift the hard shell in the positioning groove 12 by a preset distance, and then the injection mold is used to perform secondary injection molding on the hard shell. The injection molding tool provided by the utility model can effectively ensure the positioning effect and fixing effect of the secondary injection molding of the hard shell, thereby improving the yield rate of the secondary injection molding. Among them, the injection molding tool is applied to the secondary injection molding process of the car key shell. The car key shell is usually a special-shaped structure. Therefore, a plurality of stop protrusions 11 are set on the injection molding table to enclose and form a positioning groove 12. The structural flexibility is higher, which is convenient for designers to adaptively modify the positioning groove structure of the injection molding table, and can also play a better limiting and fixing role on the hard shell of the car key shell.

[0031] Furthermore, the plurality of stop protrusions 11 include two first protrusions 111 and two second protrusions 112 , the two first protrusions 111 are disposed opposite to each other, and the two second protrusions 112 are disposed opposite to each other.

[0032] Furthermore, the thickness of the first bump 111 is smaller than the thickness of the second bump 112 .

[0033] It can be seen from the above description that the thickness of the hard shell increases along its length direction. Therefore, in the injection molding tool provided by the present invention, the thickness of the first protrusion 111 and the thickness of the second protrusion 112 are set correspondingly to improve the positioning effect of the injection molding tool on the hard shell.

[0034] Furthermore, a guide groove 113 is provided on the stop protrusion 11 .

[0035] As can be seen from the above description, a clamping block for snap-fitting is provided on the hard shell. When the hard shell is fixed in the positioning groove 12, the clamping block is arranged in the guide groove 113 to improve the ability of the injection molding tool to position and fix the hard shell.

[0036] Furthermore, an engaging protrusion 14 is provided in the positioning groove 12 .

[0037] As can be seen from the above description, a button hole is provided on the hard shell, and button silicone is injection molded in the button hole during secondary injection molding. An engaging protrusion 14 matching the button hole is provided on the injection molding platform 1 so that the hard shell can be accurately positioned with the positioning groove 12.

[0038] Furthermore, the injection molding table 1 includes a rectangular positioning plate 15 , on which a plurality of stop protrusions 11 are disposed, and first limiting columns 4 are disposed at four corners of the positioning plate 15 .

[0039] Furthermore, a positioning column 5 is provided on the positioning plate 15 .

[0040] As can be seen from the above description, during secondary injection molding, the injection mold can be positioned by the positioning column 5 so that the injection mold and the injection molding table 1 are accurately positioned and matched, and the first limiting column 4 can limit the relative position between the injection mold and the injection molding table 1, thereby improving the yield rate of secondary injection molding.

[0041] Furthermore, it also includes a top plate 6 , which is connected to the driving end of the first driving member 2 , and the ejector pin 3 is arranged on the top plate 6 .

[0042] It can be known from the above description that a plurality of ejector pins 3 can be disposed on the ejector plate 6 at the same time, so that a first driving member 2 can simultaneously drive the plurality of ejector pins 3 to extend and retract.

[0043] Furthermore, it also includes a guide column 7 and a second limiting column 8, and the guide column 7 and the second limiting column 8 are both arranged on the injection molding table 1. The top plate 6 is provided with a second through hole 61 and a third through hole 62. The guide column 7 can movably pass through the second through hole 61, and the second limiting column 8 can movably pass through the third through hole 62. The second limiting column 8 is provided with a limiting protrusion 81.

[0044] It can be seen from the above description that the guide column 7 and the limit column can ensure the stability of the movement of the top plate 6; in addition, when the first driving member 2 drives the top plate 6 to move to a preset distance, the limit protrusion 81 can contact the top plate 6 to ensure that the ejector pin 3 is stopped and limited by the limit protrusion when moving the preset distance, and correspondingly ensure that the hard shell is ejected by the preset distance under the action of the ejector pin 3.

[0045] Furthermore, it also includes a vacuum adsorption component 9, which includes a second driving component 91, a fixed plate 92 and a vacuum suction nozzle 93. The second driving component 91 is arranged on the injection molding table 1, the fixed plate 92 is connected to the driving end of the second driving component 91, and the vacuum suction nozzle 93 is arranged on the fixed plate 92.

[0046] From the above description, it can be seen that in actual application, the injection molding tooling can be connected to an external robot or linear module so that the external robot or linear module can drive the injection molding tooling to move. After the injection molding is completed, the vacuum adsorption device can unload the injection molded product.

[0047] Embodiment 1

[0048] Please refer to Figures 1 to 3 Embodiment 1 of the utility model provides an injection molding tool, including an injection molding table 1, a first driving member 2 and an ejector pin 3, wherein a positioning plate 15 is provided on the top of the injection molding table 1, a plurality of stop protrusions 11 are provided on the upper surface of the positioning plate 15, a positioning groove 12 is formed between the plurality of stop protrusions 11, a first through hole 13 is provided in the positioning groove 12, the ejector pin 3 is connected to the driving end of the first driving member 2, and the ejector pin 3 can movably pass through the first through hole 13.

[0049] In actual application, this injection molding tooling can cooperate with the injection mold to position the hard shell of the car remote control shell through the positioning groove 12 on the injection molding table 1, and the first driving member 2 drives the ejector pin 3 to lift the hard shell in the positioning groove 12 by a preset distance, so that the hard shell can be accurately positioned with the injection mold, thereby ensuring the positioning accuracy of the injection mold for secondary injection molding of the hard shell and improving the yield rate of secondary injection molding.

[0050] Specifically, refer to Figure 2 It is not difficult to see that in this embodiment, the plurality of stopper protrusions 11 include two first protrusions 111 and two second protrusions 112, the two first protrusions 111 are arranged oppositely, the two second protrusions 112 are arranged oppositely, and the plurality of stopper protrusions 11 are all provided with guide grooves. The hard shell is provided with a card block for buckle fixing; therefore, in this embodiment, a plurality of stopper protrusions 11 are respectively provided corresponding to the plurality of card blocks on the hard shell, and a guide groove is provided on the stopper protrusion 11 so that the card block can be fixed in the guide groove, and when the first driving member 2 lifts the hard shell through the ejector pin 3, the card block moves along the guide groove, so that the injection molding tooling has better fixing and positioning capabilities for the hard shell; in addition, the thickness of the hard shell increases along its length direction, so the thickness of the first protrusion 111 and the second protrusion 112 is set corresponding to the thickness of the hard shell along its length direction. In detail, the thickness of the first protrusion 111 is less than the thickness of the second protrusion 112.

[0051] like Figure 2As shown, there are button holes on the hard shell. In this embodiment, in order to improve the positioning effect of the injection molding tool on the hard shell, an engaging protrusion 14 is provided in the positioning groove 12. When the hard shell is positioned in the positioning groove 12, the engaging protrusion 14 passes through the button hole, and the outer contour of the engaging protrusion 14 matches the inner contour of the button hole.

[0052] from Figure 2 It is not difficult to see that in this embodiment, two positioning grooves 12 are simultaneously provided on the positioning plate 15, so the injection molding tool can simultaneously position and perform secondary injection molding on the hard shells of two car key shells. In order to save the production and manufacturing cost of the injection molding tool, in this embodiment, the injection molding tool also includes a top plate 6, which is connected to the driving end of the first driving member 2, and a plurality of ejector pins 3 are respectively provided on the top plate 6 corresponding to the two positioning workpieces. In actual application, the first driving member 2 can simultaneously drive the plurality of ejector pins 3 to respectively lift up the two hard shells.

[0053] Please refer to Figure 3 In order to ensure the stability and reliability of the first driving member 2 driving the top plate 6 to move, the injection molding tool also includes a guide column 7 and a second limit column 8. The guide column 7 and the second limit column 8 are both arranged on the injection molding table 1. The top plate 6 is provided with a second through hole 61 and a third through hole 62. The guide column 7 can movably pass through the second through hole 61, and the second limit column 8 can movably pass through the third through hole 62. The second limit column 8 is provided with a limit protrusion 81. Specifically, the guide column 7 and the limit column can ensure the stability of the movement of the top plate 6; in addition, when the first driving member 2 drives the top plate 6 to move to a preset distance, the limit protrusion 81 can conflict with the top plate 6 to ensure that the ejector pin 3 is stopped and limited by the limit protrusion when moving the preset distance, and the hard shell is correspondingly ensured to be ejected by the preset distance under the action of the ejector pin 3.

[0054] In this embodiment, the positioning plate 15 is a rectangular positioning plate 15, and the first limiting columns 4 are provided at the four corners of the positioning plate 15, and the positioning column 5 is also provided on the positioning plate 15. During the secondary injection molding, the injection mold can be positioned by the positioning columns 5 so that the injection mold and the injection molding table 1 are accurately positioned and matched. The first limiting columns 4 can limit the relative position between the injection mold and the injection molding table 1, thereby improving the yield rate of the secondary injection molding.

[0055] In actual application, the injection molding tool can be connected to an external manipulator or linear module so that the external manipulator or linear module can drive the injection molding tool to move. In order to further improve the automation performance of the injection molding tool, the injection molding tool also includes a vacuum adsorption component 9, and the vacuum adsorption component 9 includes a second driving member 91, a fixed plate 92 and a plurality of vacuum suction nozzles 93. The second driving member 91 is arranged on the injection molding table 1, and the fixed plate 92 is connected to the driving end of the second driving member 91. The plurality of vacuum suction nozzles 93 are arranged on the fixed plate 92, and the plurality of vacuum suction nozzles 93 are distributed in a matrix. When the injection molding is completed, the vacuum adsorption component 9 can unload the injection molded product. In this embodiment, a buffer elastic member is also provided on the vacuum suction nozzle 93. The second driving device can drive the vacuum suction nozzle 93 to fit the product tightly, and the buffer elastic member can produce elastic compression to improve the unloading efficiency and success rate.

[0056] In summary, the injection molding tool provided by the utility model can cooperate with the injection mold, and the hard shell of the car remote control housing is positioned through the positioning groove 12 on the injection molding table 1, and the first driving member 2 drives the ejector pin 3 to lift the hard shell in the positioning groove 12 by a preset distance, and then the injection mold is used to perform secondary injection molding on the hard shell. The injection molding tool provided by the utility model can effectively ensure the positioning effect and fixing effect of the secondary injection molding of the hard shell, thereby improving the yield rate of the secondary injection molding.

[0057] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. An injection molding tool, characterized in that: The invention comprises an injection molding table, a first driving member and an ejector pin. The injection molding table is provided with a plurality of stop protrusions, a positioning groove is formed by the plurality of stop protrusions, a first through hole is opened in the positioning groove, the ejector pin is connected to the driving end of the first driving member, and the ejector pin can movably pass through the first through hole.

2. The injection molding tool according to claim 1, characterized in that: The plurality of stop protrusions include two first protrusions and two second protrusions, the two first protrusions are arranged opposite to each other, and the two second protrusions are arranged opposite to each other.

3. The injection molding tool according to claim 2, characterized in that: The thickness of the first bump is smaller than the thickness of the second bump.

4. The injection molding tool according to claim 1, characterized in that: The stop convex block is provided with a guide groove.

5. The injection molding tool according to claim 1, characterized in that: An engaging protrusion is arranged in the positioning groove.

6. The injection molding tool according to claim 1, characterized in that: The injection molding table comprises a rectangular positioning plate, a plurality of stop convex blocks are arranged on the positioning plate, and first limiting columns are arranged at four corners of the positioning plate.

7. The injection molding tool according to claim 6, characterized in that: The positioning plate is also provided with a positioning column.

8. The injection molding tool according to claim 1, characterized in that: It also includes a top plate, which is connected to the driving end of the first driving member, and the ejector pin is arranged on the top plate.

9. The injection molding tool according to claim 8, characterized in that: It also includes a guide column and a second limiting column, both of which are arranged on the injection molding table, and a second through hole and a third through hole are opened on the top plate, the guide column can movably pass through the second through hole, the second limiting column can movably pass through the third through hole, and a limiting protrusion is provided on the second limiting column.

10. The injection molding tool according to claim 1, characterized in that: It also includes a vacuum adsorption component, which includes a second driving component, a fixed plate and a vacuum suction nozzle. The second driving component is arranged on the injection molding table, the fixed plate is connected to the driving end of the second driving component, and the vacuum suction nozzle is arranged on the fixed plate.

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