Injection molding tool

Abstract

The injection molding tool comprises an injection molding table, a positioning workpiece, a first driving part and an ejector pin, the positioning workpiece is arranged on the injection molding table, a positioning groove is formed in the positioning workpiece, a first through hole communicated with the positioning groove is formed in the positioning workpiece, the ejector pin is connected with the driving end of the first driving part, and the first driving part is arranged on the first through hole. And the ejector pin is movably arranged in the first through hole. According to the injection molding tool, the positioning workpiece can be matched with an injection mold, a PIN needle is positioned and fixed through the positioning groove in the positioning workpiece, the ejector pin is driven by the first driving piece to enable the PIN needle in the positioning groove to stretch out of the positioning groove by a preset distance, and then secondary injection molding is conducted on the PIN needle stretching out of the positioning groove by the preset distance through the injection mold; the injection molding tool can effectively guarantee the positioning effect and the fixing effect of secondary injection molding of the PINs, so that the yield of 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] Currently, in the existing plug manufacturing process, the PIN pin of the plug can be subjected to secondary injection molding so that the PIN pin is directly injection molded into the plastic housing. This injection molding method is simple and is beneficial to improving the fixing effect of the PIN pin.

[0003] However, the inventors have discovered that in the current secondary injection molding process, the PIN needle is directly placed in the mold for injection molding. However, due to the presence of a certain gap space in the mold, the PIN needle is difficult to position and fix during the positioning and placement process, thereby affecting the effect of the secondary injection molding, resulting in a high defective rate of the current PIN needle secondary injection molding. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an injection molding tool to solve the problem that the current secondary injection molding positioning and fixing of PIN needles is difficult.

[0005] 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 positioning workpiece, a first driving member and an ejector pin, the positioning workpiece is arranged on the injection molding table, the positioning workpiece is provided with a positioning groove, the positioning workpiece is provided with a first through hole connected to the positioning groove, the ejector pin is connected to the driving end of the first driving member, and the ejector pin is movably arranged in the first through hole.

[0006] Furthermore, the injection molding table includes a support plate, the positioning workpiece is arranged on the top of the support plate, the first driving member is arranged below the support plate, the support plate is provided with a second through hole connected to the first through hole, and the ejector pin can movably pass through the second through hole.

[0007] 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.

[0008] Furthermore, it also includes a guide column, which is arranged on the injection molding table. A third through hole is opened on the top plate, and the guide column can movably pass through the third through hole.

[0009] Furthermore, it also includes a limiting column, which is arranged on the injection molding table, and a fourth through hole is opened on the top plate. The limiting column can movably pass through the fourth through hole, and a limiting protrusion is provided on the limiting column, and the limiting protrusion is used to abut against the top plate.

[0010] Furthermore, the positioning workpiece is further provided with a first receiving hole communicating with the positioning groove, and the injection molding table is provided with a second receiving hole communicating with the first receiving hole.

[0011] Furthermore, a positioning shaft is provided on the injection molding table.

[0012] Furthermore, it also includes a vacuum adsorption component, which is connected to the injection molding table.

[0013] Furthermore, the vacuum adsorption assembly includes a second driving member and a vacuum suction nozzle, the second driving member is arranged on the side wall of the injection molding table, and the vacuum suction nozzle is connected to the driving end of the second driving member.

[0014] Furthermore, the injection molding table is provided with an assembly groove matching the positioning workpiece.

[0015] The beneficial effect of the utility model is that the positioning workpiece of the injection molding tool provided by the utility model can be matched with the injection mold, and the PIN needle is positioned and fixed by the positioning groove on the positioning workpiece, and the first driving member drives the ejector pin to extend the PIN needle in the positioning groove from the positioning groove by a preset distance, and then the injection mold and the PIN needle extending from the positioning groove by a preset distance are used for secondary injection molding. The injection molding tool can effectively ensure the positioning effect and fixing effect of the secondary injection molding of the PIN needle, thereby improving the yield rate of the secondary injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of the injection molding tooling of the utility model in one embodiment at a viewing angle;

[0017] Figure 2 for Figure 1 The schematic diagram of the structure of the injection molding tooling shown in another perspective;

[0018] Figure 3 In the PIN positioning state Figure 2 AA section view in;

[0019] Figure 4 When the PIN is extended Figure 2 AA section view in;

[0020] Figure 5 for Figure 1 A cross-sectional view of the workpiece in the positioning;

[0021] Figure 6 for Figure 1 Structural schematic diagram of the middle support plate;

[0022] Figure 7 for Figure 1Schematic diagram of the structure of the middle top plate.

[0023] Description of labels:

[0024] 1. Injection molding table; 11. Support plate; 111. Second through hole; 112. Second receiving hole; 113. Assembly groove;

[0025] 2. Positioning workpiece; 21. Positioning groove; 22. First through hole; 23. First receiving hole;

[0026] 3. A first driving member;

[0027] 4. ejector pin; 41. third through hole; 42. fourth through hole;

[0028] 5. Top plate;

[0029] 6. Guide column;

[0030] 7. Limiting column; 71. Limiting protrusion;

[0031] 8. Positioning axis;

[0032] 9. Vacuum adsorption assembly; 91. Second driving member; 92. Vacuum suction nozzle;

[0033] 10. PIN needle; 101. conductor; 102. connecting part. DETAILED DESCRIPTION

[0034] 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.

[0035] Please refer to Figures 1 to 7 An injection molding tool comprises an injection molding table 1, a positioning workpiece 2, a first driving member 3 and an ejector pin 4. The positioning workpiece 2 is arranged on the injection molding table 1, and a positioning groove 21 is provided on the positioning workpiece 2. A first through hole 22 communicating with the positioning groove 21 is provided on the positioning workpiece 2. The ejector pin 4 is connected to the driving end of the first driving member 3, and the ejector pin 4 is movably arranged in the first through hole 22.

[0036] From the above description, it can be seen that the beneficial effect of the utility model is that: the injection molding tooling provided by the utility model, its positioning workpiece 2 can cooperate with the injection mold, and the PIN needle 10 is positioned and fixed by the positioning groove 21 on the positioning workpiece 2, and the first driving member 3 drives the ejector pin 4 to extend the PIN needle 10 in the positioning groove 21 from the positioning groove 21 by a preset distance, and then the injection mold and the PIN needle 10 extending from the positioning groove 21 by a preset distance are used for secondary injection molding. The injection molding tooling can effectively ensure the positioning effect and fixing effect of the secondary injection molding of the PIN needle 10, thereby improving the yield rate of the secondary injection molding.

[0037] Furthermore, the injection molding table 1 includes a support plate 11, the positioning workpiece 2 is arranged on the top of the support plate 11, the first driving member 3 is arranged below the support plate 11, the support plate 11 is provided with a second through hole 111 connected to the first through hole 22, and the ejector pin 4 can movably pass through the second through hole 111.

[0038] Furthermore, it also includes a top plate 5 , which is connected to the driving end of the first driving member 3 , and the ejector pin 4 is arranged on the top plate 5 .

[0039] From the above description, it can be seen that when multiple positioning workpieces 2 are simultaneously arranged on the injection molding table 1 to simultaneously fix and position multiple PIN needles 10 and perform secondary injection molding, ejector pins 4 that match the multiple positioning tooling one by one can be arranged on the top plate 5 to simultaneously drive the multiple ejector pins 4 to move. The injection molding tooling can improve the efficiency of the secondary injection molding of the plug PIN needle 10.

[0040] Furthermore, it also includes a guide column 6 , which is arranged on the injection molding table 1 , and a third through hole 41 is opened on the top plate 5 , and the guide column 6 can movably pass through the third through hole 41 .

[0041] From the above description, it can be known that the guide column 6 can ensure the stability of the movement of the ejector plate 5, thereby ensuring that the ejector pin 4 moves a preset distance, and correspondingly ensuring that the PIN pin 10 extends from the positioning groove 21 a preset distance under the action of the ejector pin 4.

[0042] Furthermore, it also includes a limiting column 7, which is arranged on the injection molding table 1, and a fourth through hole 42 is opened on the top plate 5. The limiting column 7 can movably pass through the fourth through hole 42, and a limiting protrusion 71 is provided on the limiting column 7, and the limiting protrusion 71 is used to abut against the top plate 5.

[0043] From the above description, it can be seen that the limit column 7 can improve the smoothness of the movement of the top plate 5 driven by the first driving member 3; in addition, when the first driving member 3 drives the top plate 5 to move to a preset distance, the limit protrusion 71 can interfere with the top plate 5 to improve the accuracy of the injection molding tooling controlling the extension distance of the PIN needle 10 from the limit groove.

[0044] Furthermore, the positioning workpiece 2 is further provided with a first receiving hole 23 communicating with the positioning groove 21 , and the injection molding table 1 is provided with a second receiving hole 112 communicating with the first receiving hole 23 .

[0045] From the above description, we can see that Figure 3 As shown, the PIN needle 10 can movably pass through the first receiving hole 23 and the second receiving hole 112. In actual application, the positioning workpiece 2 can be replaced to meet the application requirements of secondary injection molding of PIN needles 10 of different models and sizes.

[0046] Furthermore, a positioning shaft 8 is provided on the injection molding table 1 .

[0047] It can be seen from the above description that the positioning shaft 8 can be used for positioning the external injection mold so that the injection mold and the positioning tooling can be accurately positioned and matched, thereby improving the yield rate of the secondary injection molding of the PIN needle 10.

[0048] Furthermore, it also includes a vacuum adsorption component 9, which is connected to the injection molding table 1.

[0049] 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.

[0050] Furthermore, the vacuum adsorption assembly 9 includes a second driving member 91 and a vacuum suction nozzle 92 . The second driving member 91 is arranged on the side wall of the injection molding table 1 , and the vacuum suction nozzle 92 is connected to the driving end of the second driving member 91 .

[0051] It can be seen from the above description that the second driving device can drive the vacuum suction nozzle 92 to fit closely to the product, so as to improve the material unloading efficiency and success rate.

[0052] Furthermore, the injection molding table 1 is provided with an assembly groove 113 matching the positioning workpiece 2 .

[0053] In detail, the positioning tool is fixed in the assembly groove 113 by bolts. In actual application, the positioning workpiece 2 can be replaced to meet the application requirements of secondary injection molding of PIN needles 10 of different models and sizes.

[0054] Embodiment 1

[0055] Please refer to Figures 1 to 7 Embodiment 1 of the present utility model provides an injection molding tool, which includes an injection molding table 1, a positioning workpiece 2, a first driving member 3 and an ejector pin 4. The positioning workpiece 2 is arranged on the injection molding table 1, and a positioning groove 21 is provided on the positioning workpiece 2. A first through hole 22 communicating with the positioning groove 21 is provided on the positioning workpiece 2. The ejector pin 4 is connected to the driving end of the first driving member 3, and the ejector pin 4 is movably arranged in the first through hole 22.

[0056] like Figure 3 As shown, in actual application, the PIN pin 10 can be placed in the positioning groove 21, and the positioning groove 21 positions and fixes the PIN pin 10, wherein the width of the positioning groove 21 is set corresponding to the maximum width of the PIN pin 10, so that the positioning groove 21 can play an excellent role in positioning and fixing the PIN pin 10. Figure 4 As shown, the first driving member 3 can drive the ejector pin 4 to move a preset distance, so that the ejector pin 4 can lift the PIN pin 10, thereby making the PIN pin 10 extend from the positioning groove 21 by a preset distance. At this time, the injection mold is positioned relative to the positioning tooling and injection molding is performed, which can ensure the positioning effect of the PIN pin 10 during the secondary injection molding. Therefore, the utility model can solve the problem of high defective rate caused by inaccurate positioning of the PIN pin 10 during the secondary injection molding.

[0057] In this embodiment, the injection molding table 1 includes a support plate 11, the positioning workpiece 2 is arranged on the top of the support plate 11, the first driving member 3 is arranged below the support plate 11, and the support plate 11 is provided with a second through hole 111 connected to the first through hole 22, and the ejector pin 4 can movably pass through the second through hole 111.

[0058] In addition, the positioning workpiece 2 is further provided with a first receiving hole 23 communicating with the positioning groove 21, and the injection molding table 1 is provided with a second receiving hole 112 communicating with the first receiving hole 23. Figure 3 It is not difficult to see that in this embodiment, the PIN needle 10 includes two conductors 101 and a connecting portion 102 respectively connecting the two conductors. When the PIN needle 10 is placed in place, the lower surface of the connecting portion 102 contacts the bottom of the positioning groove, and the conductor 101 can pass through the first accommodating hole 23 and the second accommodating hole 112. When the shape of the connecting portion 102 of the PIN needle 10 matches the inner contour of the positioning groove, the injection molding tooling can be used for secondary injection molding, and its universal performance is high.

[0059] Please refer to Figure 1 It is not difficult to see that in this embodiment, two positioning workpieces 2 are arranged on the injection molding table 1, so the injection molding tooling designed in this embodiment can simultaneously position and fix two PIN pins 10 and perform secondary injection molding. In order to save the production and manufacturing cost of the injection molding tooling, in this embodiment, the injection molding tooling also includes a top plate 5, which is connected to the driving end of the first driving member 3, and a plurality of ejector pins 4 are respectively arranged on the top plate 5 corresponding to the two positioning workpieces 2. In actual application, the first driving member 3 can simultaneously drive the plurality of ejector pins 4 to eject the PIN pins 10 in the positioning grooves 21 of the two positioning workpieces 2 respectively.

[0060] In this embodiment, in order to ensure the stability of the first driving member 3 driving the top plate 5 to move, the injection molding tool further includes a guide column 6 and a limit column 7, wherein the guide column 6 is arranged on the injection molding table 1, and a third through hole 41 is opened on the top plate 5, and the guide column 6 can movably pass through the third through hole 41; the limit column 7 is arranged on the injection molding table 1, and a fourth through hole 42 is opened on the top plate 5, and the limit column 7 can movably pass through the fourth through hole 42, and a limit protrusion 71 is provided on the limit column 7. Specifically, when the first driving member 3 drives the top plate 5 to move a preset stroke, the upper surface of the top plate 5 conflicts with the lower surface of the protrusion (such as Figure 4 shown).

[0061] Reference Figure 1 It can be seen that a positioning shaft 8 is provided on the injection molding table 1, and the positioning shaft 8 is used for positioning the external injection mold and the injection molding tooling.

[0062] Reference Figure 6 It can be seen that the injection molding table 1 is provided with an assembly groove 113 matching the positioning workpiece 2. Among them, the positioning workpiece 2 is fixed in the assembly groove 113 by bolts, and the injection molding tool can replace the positioning workpiece 2 according to actual application requirements to meet the use requirements of secondary injection molding of PIN needles 10 of different models and specifications.

[0063] In this embodiment, the injection molding tool can be connected to an external robot arm or a linear mold base, so that the robot arm or the linear mold base drives the injection molding tool to move.

[0064] The injection molding tool also includes a vacuum adsorption component 9, which is connected to the injection molding table 1. Specifically, the vacuum adsorption component 9 includes a second driving member 91 and a vacuum suction nozzle 92, the second driving member 91 is arranged on the side wall of the injection molding table 1, and the vacuum suction nozzle 92 is connected to the driving end of the second driving member 91.

[0065] In actual application, an external robot or linear module drives the injection molding tool to move. After the injection molding is completed, the vacuum adsorption device can unload the molded product. Among them, the second driving device can drive the vacuum suction nozzle 92 to fit the product tightly to improve the unloading efficiency and success rate.

[0066] To sum up, the injection molding tooling provided by the utility model has a positioning workpiece 2 that can cooperate with the injection mold, and the PIN needle 10 is positioned and fixed by the positioning groove 21 on the positioning workpiece 2, and the first driving member 3 drives the ejector pin 4 to extend the PIN needle 10 in the positioning groove 21 from the positioning groove 21 by a preset distance, and then the injection mold and the PIN needle 10 extending from the positioning groove 21 by a preset distance are used for secondary injection molding. The injection molding tooling can effectively ensure the positioning effect and fixing effect of the secondary injection molding of the PIN needle 10, thereby improving the yield rate of the secondary injection molding.

[0067] 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 positioning workpiece, a first driving member and an ejector pin. The positioning workpiece is arranged on the injection molding table. The positioning workpiece is provided with a positioning groove. The positioning workpiece is provided with a first through hole connected with the positioning groove. The ejector pin is connected with the driving end of the first driving member. The ejector pin is movably arranged in the first through hole.

2. The injection molding tool according to claim 1, characterized in that: The injection molding table includes a support plate, the positioning workpiece is arranged on the top of the support plate, the first driving member is arranged below the support plate, the support plate is provided with a second through hole connected to the first through hole, and the ejector pin can movably pass through the second through hole.

3. 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.

4. The injection molding tool according to claim 3, characterized in that: It also includes a guide column, which is arranged on the injection molding table. The top plate is provided with a third through hole, and the guide column can movably pass through the third through hole.

5. The injection molding tool according to claim 3, characterized in that: It also includes a limiting column, which is arranged on the injection molding table. A fourth through hole is opened on the top plate. The limiting column can movably pass through the fourth through hole, and a limiting protrusion is arranged on the limiting column.

6. The injection molding tool according to claim 1, characterized in that: The positioning workpiece is further provided with a first receiving hole communicating with the positioning groove, and the injection molding table is provided with a second receiving hole communicating with the first receiving hole.

7. The injection molding tool according to claim 1, characterized in that: A positioning shaft is arranged on the injection molding table.

8. The injection molding tool according to claim 1, characterized in that: It also includes a vacuum adsorption component, which is connected to the injection molding table.

9. The injection molding tool according to claim 8, characterized in that: The vacuum adsorption assembly includes a second driving member and a vacuum suction nozzle. The second driving member is arranged on the side wall of the injection molding table, and the vacuum suction nozzle is connected to the driving end of the second driving member.

10. The injection molding tool according to claim 1, characterized in that: The injection molding table is provided with an assembly groove matching the positioning workpiece.

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