Positioning core-pulling device applied to terminal implantation injection molding
By driving the positioning pin to contact and away from the terminals through the lifting mechanism, the problem of floating terminals during the injection molding process is solved, ensuring the accuracy of terminal positions under low-cost conditions, avoiding the use of additional internal modules, reducing costs and improving Positioning accuracy.
Patent Information
- Application Number
- CN202420950159.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-30
AI Technical Summary
During the terminal implantation and injection molding process, the prior art is difficult to ensure the accurate position of the terminal under low cost conditions, and the existing internal modules have high mold opening costs, resulting in an increase in the manufacturing cost of finished products.
The combination device of the lifting mechanism and the positioning needle is adopted. After the injection molding machine is closed, the positioning needle abuts to the terminal, and after V-P is switched away from the terminal to avoid the terminal floating, and the injection molding process is carried out normally through the lifting mechanism to ensure the accuracy of the terminal position.
Without introducing additional internal modules, the terminal float is effectively avoided, the cost is reduced, and the position accuracy of the terminals in the finished product is ensured. The positioning accuracy and replaceability are further improved through multiple positioning pins and optimized structures.
Smart Images
Figure CN222245810U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of terminal implantation injection molding positioning, and in particular to a positioning and core pulling device used in terminal implantation injection molding. Background Art
[0002] During the terminal implantation injection molding process, positioning is required to ensure that the terminal does not shift during the injection molding process, thereby ensuring the accurate position of the terminal in the finished product and ensuring good electrical performance.
[0003] There are two solutions commonly used in the prior art: one is to use the positioning holes in the terminals themselves for positioning, but during the plastic punching process, the terminals are prone to floating up and down, resulting in unstable positions; the other is to introduce additional inner molds for secondary injection molding positioning, however, the mold opening cost of such inner molds is high, resulting in an increase in the manufacturing cost of the finished product. Utility Model Content
[0004] In order to ensure that the position of the terminal in the finished product is as accurate as possible at a low cost, the present application provides a positioning and core-pulling device for terminal implantation injection molding.
[0005] The present application provides a positioning core pulling device for terminal implantation injection molding, which adopts the following technical solution:
[0006] A positioning core pulling device used for terminal implant injection molding comprises a lifting mechanism and a positioning pin, wherein the positioning pin is installed at the output end of the lifting mechanism; a mold is arranged below the positioning pin, and a terminal is installed on the mold; after the injection molding machine is molded and before the VP is switched, the lifting mechanism drives the positioning pin to abut against the terminal; after the VP is switched, the lifting mechanism drives the positioning pin away from the terminal.
[0007] By adopting the above technical solution, after the injection molding machine closes the mold and before the VP is switched, the lifting mechanism is used to enable the positioning pin to abut against the terminal, thereby preventing the terminal from floating during the injection molding and glue punching process as much as possible; after the VP is switched, the lifting mechanism can promptly drive the positioning pin away from the terminal, so that the injection molding machine can complete the injection molding process. Through the above structure, the position of the terminal in the finished product can be ensured to be as accurate as possible without introducing additional internal mold parts.
[0008] Preferably, a plurality of the positioning pins are provided, and the lifting mechanism is used to drive the plurality of the positioning pins to abut against or move away from the terminal at the same time.
[0009] By adopting the above technical solution, a plurality of positioning pins can be used to increase the contact resistance of the terminal, thereby further preventing the terminal from floating during the injection molding process.
[0010] Preferably, the lifting mechanism includes a driving member, the output end of the driving member is connected to a driving block via a pull plate, one end of the driving block along the telescopic direction of the driving member is inclined upward away from the mold, and one end of the driving block close to the mold has slides extending on opposite sides along the telescopic direction of the driving member; a movable block is movably connected to the driving block, and the movable block is provided with a slide groove corresponding to the driving block and the slide groove, the driving block and the slide are slidably connected in the slide groove, and the positioning pin is installed on the movable block.
[0011] By adopting the above technical solution, when the driving member pulls the driving block through the pulling plate, it can drive the movable block to move upward or downward, thereby driving the positioning needle to move upward or downward; when the driving member pushes the driving block through the pulling plate, it can drive the movable block to move downward or upward, thereby driving the positioning needle to move downward or upward.
[0012] Preferably, the positioning pin is mounted on the movable block via a fixing plate, a fixing hole is provided on the fixing plate corresponding to the positioning pin, the positioning pin is arranged in the positioning hole, and the fixing plate is detachably mounted on the movable block via a threaded structure.
[0013] By adopting the above technical solution, the positioning pin can be easily replaced by disassembling and assembling the fixing plate.
[0014] Preferably, a limiting portion is provided at the end of the positioning pin away from the mold, and a limiting groove is opened on the outer periphery of the fixing plate corresponding to the fixing hole, and the limiting groove is located on the side of the fixing plate away from the mold; when the positioning pin is located in the fixing hole, the limiting portion is located in the limiting groove.
[0015] By adopting the above technical solution, the positioning pin can be detachably mounted on the fixing plate by utilizing the limiting portion and the limiting groove, thereby further increasing the convenience of replacing the positioning pin.
[0016] Preferably, a plurality of fixing holes are provided, and the number of the fixing holes is greater than or equal to the number of the positioning pins.
[0017] By adopting the above technical solution, when the number of fixing holes is greater than the number of positioning pins, more positioning pins can be added or the positions of the positioning pins can be adjusted.
[0018] Preferably, a buffer portion is provided at the end of the positioning pin for abutting against the terminal.
[0019] By adopting the above technical solution, the buffer portion is utilized to reduce the wear on the terminal caused by the positioning pin abutting against the terminal.
[0020] Preferably, a guide column is provided on the fixing plate through a guide sleeve, and the length direction of the guide column is parallel to the lifting direction of the positioning pin.
[0021] By adopting the above technical solution, the guide column can be used in conjunction with the guide groove on the injection molding machine that slides with the guide column, so that the movable block can achieve lifting and lowering movements more stably.
[0022] In summary, the present application includes at least one of the following beneficial technical effects: the positioning pin is driven to abut against or away from the terminal through the lifting mechanism. When the positioning pin abuts against the terminal, the positioning pin plays a positioning role for the terminal, thereby avoiding the floating of the terminal during the injection molding process as much as possible. After the VP is converted, the lifting mechanism drives the positioning pin away from the terminal, so as not to interfere with the molding of the plastic part, thereby achieving cost reduction without introducing additional internal modules, and still ensuring that the position of the terminal in the finished product is as accurate as possible. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the explosion structure of an embodiment of the present application;
[0024] Figure 2 It is a schematic diagram of the overall structure before VP switching in an embodiment of the present application;
[0025] Figure 3 yes Figure 2 A magnified view of part A;
[0026] Figure 4 It is a schematic diagram of the overall structure after VP switching in an embodiment of the present application;
[0027] Figure 5 yes Figure 4 Enlarged view of part B
[0028] Figure 6 It is a schematic diagram of the exploded structure mainly used to show the fixing plate, the positioning pin, the guide sleeve and the guide column in the embodiment of the present application.
[0029] Figure numerals: 1. lifting mechanism; 11. driving member; 12. pulling plate; 121. first mounting plate; 122. second mounting plate; 13. driving block; 131. sliding plate; 14. movable block; 141. sliding groove; 2. positioning pin; 21. limiting part; 3. fixing plate; 31. fixing hole; 32. limiting groove; 33. through hole; 4. mold; 5. terminal; 6. plastic part; 71. guide sleeve; 72. guide column. DETAILED DESCRIPTION
[0030] The following is combined with Figure 1-6 This application is described in further detail.
[0031] The embodiment of the present application discloses a positioning and core-pulling device used in terminal implantation injection molding.
[0032] Reference Figure 1 and Figure 2 , a positioning and core-pulling device used for terminal implant injection molding, includes a lifting mechanism 1 and a positioning pin 2, and the positioning pin 2 is connected to the driving end of the lifting mechanism 1. A mold 4 is arranged below the positioning pin 2, and a terminal 5 is installed in the mold 4 through a clamping structure. After the injection molding machine is molded and before the VP is switched, the lifting mechanism 1 drives the positioning pin 2 to approach the mold 4, and makes the positioning pin 2 abut against the terminal 5, so as to avoid the floating of the terminal 5 during the injection molding and glue punching process as much as possible; after the VP is switched, the lifting mechanism 1 drives the positioning pin 2 away from the mold 4, and then the plastic continues to fill the area before the positioning pin 2 is withdrawn through the pressure holding process of the injection molding machine, so as to ensure that the position of the terminal 5 in the finished product is as accurate as possible under low cost conditions.
[0033] The lifting mechanism 1 includes a driving member 11, a pull plate 12, a driving block 13 and a movable block 14. In this embodiment, the driving member 11 is set as an oil cylinder. The pull plate 12 is in an L-shaped plate shape as a whole, including a first mounting plate 121 and a second mounting plate 122. The length direction surface of the first mounting plate 121 is perpendicular to the moving direction of the telescopic rod of the driving member 11, and the first mounting plate 121 is connected to the end of the telescopic rod of the driving member 11 away from the driving member 11. The second mounting plate 122 is located above the first mounting plate 121 away from the mold 4, and is used to install the driving block 13. The driving block 13 is in a rectangular parallelepiped shape as a whole, and the length direction surface of the driving block 13 is perpendicular to the plate surface of the second mounting plate 122. One end of the driving block 13 is mounted on the second mounting plate 122 through a threaded structure, and the other end of the driving block 13 is tilted upward away from the side of the driving member 11, and the other end of the driving block 13 is parallel to the opposite sides of the telescopic direction of the output end of the driving member 11 and symmetrically extends with a slide plate 131. The movable block 14 is in the shape of a rectangular parallelepiped as a whole, and the length direction of the movable block 14 is parallel to the surface of the second mounting plate 122. A slide groove 141 is provided on the upper side of the movable block 14 near the driving block 13. The cross section of the slide groove 141 perpendicular to its length direction is T-shaped. One end of the driving block 13 is provided with a slide plate 131 and is slidably connected in the slide groove 141.
[0034] In this embodiment, two positioning pins 2 are provided, and the length direction of the two positioning pins 2 is the length direction surface of the movable block 14. The positioning pin 2 is installed under the movable block 14 through the fixing plate 3. The fixing plate 3 is in the shape of a rectangular plate as a whole, and the length direction of the fixing plate 3 is perpendicular to the telescopic direction of the output end of the driving member 11. The fixing plate 3 is detachably mounted on the movable block 14 through a threaded structure, so that the positioning pin 2 can be replaced by replacing the fixing plate 3. In addition, the end of the positioning pin 2 used to abut the terminal 5 can be provided with a buffer portion to reduce the wear on the terminal 5 caused by the positioning pin 2 abutting the terminal 5.
[0035] Reference Figure 2 and Figure 3 After the injection molding machine is closed and before the VP is switched, the driving member 11 pushes the pull plate 12 through the driving block 13 so that the driving block 13 can be completely set in the slide groove 141 of the movable block 14, so that the positioning pin 2 is close to the mold 4, and the end of the positioning pin 2 close to the mold 4 is in contact with the terminal 5, thereby preventing the terminal 5 from floating during the injection molding process as much as possible. Figure 4 and Figure 5 After VP is switched, the injection molding machine outputs a start signal to the driving member 11. After receiving the start signal, the driving member 11 starts to pull the pull plate 12, driving the driving block 13 to move in the direction close to the driving member 11, so that the movable block 14 moves to the end of the driving block 13 away from the driving member 11 and lifts up, thereby moving the positioning pin 2 upward and withdrawing, and then through the injection molding machine's pressure holding process, the plastic continues to fill the area before the positioning pin 2 is withdrawn, so that a plastic part 6 can be formed on the outside of the terminal 5, so as to achieve the purpose of ensuring that the position of the terminal 5 in the finished product is as accurate as possible under low cost conditions.
[0036] Reference Figure 6 On this basis, a fixing hole 31 is provided on the fixing plate 3 corresponding to the positioning pin 2, the positioning pin 2 is provided in the fixing hole 31, and a limiting portion 21 is provided at one end of the positioning pin 2 close to the fixing plate 3. A limiting groove 32 is provided on the fixing plate 3 along the outer periphery of the fixing hole 31 corresponding to the limiting portion 21, the axis of the limiting groove 32 coincides with the axis of the fixing hole 31, and the limiting groove 32 is located on the side of the fixing plate 3 away from the positioning pin 2, so that the positioning pin 2 can be more conveniently and detachably installed on the fixing plate 3. Furthermore, a plurality of fixing holes 31 can be provided on the fixing plate 3, so that the position of the positioning pin 2 installed on the fixing plate 3 can be changed, so that the positioning pin 2 can be abutted against different positions of the terminal 5 according to actual needs.
[0037] In addition, through holes 33 are opened at both ends of the fixed plate 3 in the length direction, and guide sleeves 71 are provided at the through holes 33. Guide pillars 72 are sleeved in the guide sleeves 71. The length direction of the guide pillars 72 is perpendicular to the plate surface of the fixed plate 3, and can be used in conjunction with the guide grooves on the injection molding machine that slide with the guide pillars 72, so that the movable block 14 can achieve lifting and lowering actions more stably.
[0038] The implementation principle of a positioning and core-pulling device used for terminal implant injection molding in an embodiment of the present application is: the positioning pin 2 is driven by the lifting mechanism 1 to abut against or away from the terminal 5. When the positioning pin 2 abuts against the terminal 5, the positioning pin 2 plays a positioning role on the terminal 5, thereby avoiding the floating of the terminal 5 during the injection molding process as much as possible, and when the VP is converted, the lifting mechanism 1 drives the positioning pin 2 away from the terminal 5, so as not to interfere with the molding of the plastic part 6, thereby achieving cost reduction without introducing additional internal modules, and still ensuring that the position of the terminal 5 in the finished product is as accurate as possible.
[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A positioning core pulling device used for terminal implantation injection molding, characterized in that: The invention comprises a lifting mechanism (1) and a positioning pin (2), wherein the positioning pin (2) is installed at the output end of the lifting mechanism (1); a mold (4) is arranged below the positioning pin (2), and a terminal (5) is installed on the mold (4); after the injection molding machine is molded and before the VP is switched, the lifting mechanism (1) drives the positioning pin (2) to abut against the terminal (5); after the VP is switched, the lifting mechanism (1) drives the positioning pin (2) to move away from the terminal (5).
2. A positioning core pulling device for terminal implantation injection molding according to claim 1, characterized in that: A plurality of the positioning pins (2) are provided, and the lifting mechanism (1) is used to drive the plurality of positioning pins (2) to abut against or move away from the terminal (5) at the same time.
3. A positioning core pulling device for terminal implantation injection molding according to claim 1, characterized in that: The lifting mechanism (1) comprises a driving member (11), the output end of the driving member (11) is connected to a driving block (13) via a pull plate (12), one end of the driving block (13) along the extension direction of the driving member (11) is inclined upward away from the mold (4), and one end of the driving block (13) close to the mold (4) is provided with slide plates (131) extending on opposite sides along the extension direction of the driving member (11); a movable block (14) is movably connected to the driving block (13), and a slide groove (141) is provided on the movable block (14) corresponding to the driving block (13) and the slide plate (131), the driving block (13) and the slide plate (131) are slidably connected in the slide groove (141), and the positioning pin (2) is mounted on the movable block (14).
4. A positioning and core pulling device for terminal implantation and injection molding according to claim 3, characterized in that: The positioning pin (2) is mounted on the movable block (14) via a fixing plate (3); a fixing hole (31) is provided on the fixing plate (3) corresponding to the positioning pin (2); the positioning pin (2) is arranged in the positioning hole; and the fixing plate (3) is detachably mounted on the movable block (14) via a threaded structure.
5. A positioning core pulling device for terminal implantation injection molding according to claim 4, characterized in that: A limiting portion (21) is provided at the end of the positioning pin (2) away from the mold (4), and a limiting groove (32) is provided on the fixing plate (3) corresponding to the outer periphery of the fixing hole (31), and the limiting groove (32) is located on a side of the fixing plate (3) away from the mold (4); when the positioning pin (2) is located in the fixing hole (31), the limiting portion (21) is located in the limiting groove (32).
6. A positioning core pulling device for terminal implantation injection molding according to claim 4 or 5, characterized in that: A plurality of the fixing holes (31) are provided, and the number of the fixing holes (31) is greater than or equal to the number of the positioning pins (2).
7. A positioning and core pulling device for terminal implantation and injection molding according to claim 1, characterized in that: The end of the positioning pin (2) used for abutting against the terminal (5) is provided with a buffer portion.
8. The positioning core pulling device for terminal implantation injection molding according to claim 4, characterized in that: A guide column (72) is provided on the fixing plate (3) via a guide sleeve (71), and the length direction of the guide column (72) is parallel to the lifting direction of the positioning needle (2).