A pin post injection mold

Abstract

The application discloses a nail column injection mold, which comprises a mold core and an insert for embedding a nail column; the insert is embedded in the mold core and can rotate relative to the mold core, and the nail column can rotate relative to the insert; the insert is provided with an installation groove distributed along an axial direction, the installation groove is arranged non-coaxially with the outer wall of the insert, and the axis of the installation groove is parallel to the axis of the outer wall of the insert; the installation groove is coaxially arranged with a positioning part of the nail column and non-coaxially arranged with a base of the nail column, and the axis of the installation groove is parallel to the axis of the base. The application can realize quick adjustment of the nail column and improve production efficiency.

Description

[0001] This case is a divisional application based on the invention patent filed on January 11, 2022, with application number 202210028290.5 and titled "An Injection Molding Structure for Nail Columns". Technical Field

[0002] This invention relates to the field of injection molds, and in particular to a pin-type injection mold. Background Technology

[0003] Pistons are indispensable components in automobiles and are widely used. They are integrated into corresponding parts, and the entire assembly with pegs is then installed onto the car body, thus achieving the positioning and fixation of the parts. Piston integration methods include assembly integration and injection molding integration. Assembly integration refers to the peg and the fixed part being joined using snap-fit ​​or adhesive methods; injection molding integration refers to the peg and the fixed part being integrated using a mold injection molding process.

[0004] For automotive side and corner windows, the position of the anchor pins directly determines the location of the fixed parts on the sheet metal and the matching relationship between the assembly and surrounding components. Combined with the tolerances of the sheet metal itself, the fixed parts typically require repeated matching and verification after installation to achieve the ideal position. To improve the matching degree between the fixed parts and the sheet metal and surrounding components, the most convenient way is to adjust the position of the fixed parts on the sheet metal by adjusting the position of the anchor pins. When the anchor pin is placed into the mold for injection molding, it is usually fixed to an anchor pin insert, which is pre-fixed to the mold, and the relative position between the anchor pin insert and the mold remains unchanged. Currently, adjusting the anchor pin position usually involves adjusting the position of the anchor pin within the anchor pin insert and replacing or repairing the insert. This injection molding integration method requires a significant amount of time to adjust the anchor pin position, resulting in low production efficiency and increased production costs. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a pin-and-pin injection mold that improves production efficiency while ensuring a high degree of matching between the fixed part and the sheet metal.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A stud injection mold includes a mold core and an insert for embedding studs;

[0008] The insert is embedded in the mold core and can rotate relative to the mold core, and the pin can rotate relative to the insert;

[0009] The insert has mounting grooves distributed along the axial direction. The mounting grooves are not coaxial with the outer wall of the insert, and the axis of the mounting grooves is parallel to the axis of the outer wall of the insert.

[0010] The mounting groove is coaxially arranged with the base of the nail post but not coaxially arranged with the positioning part of the nail post, and the axis of the mounting groove is parallel to the axis of the positioning part.

[0011] To solve the above-mentioned technical problems, another technical solution adopted by the present invention is as follows:

[0012] A pin-shaped injection mold includes a mold core, inserts, pins, and adjustment components;

[0013] The insert is embedded within the mold core;

[0014] The adjustment assembly includes a first slider and a second slider;

[0015] The adjustment component is embedded in the insert and the first slider is connected to the insert. The pin is installed in the second slider and the second slider can move relative to the first slider along the X-axis.

[0016] The beneficial effects of this invention are as follows: by modifying the structure of the pin or adding an adjustment component, the positioning part of the pin can change position relative to the mold core. Specifically, the axis of the positioning part of the pin can move relative to the axis of the mold core, and the axis of the positioning part of the pin will always remain parallel to the axis of the mold core. This achieves positional adjustment between the pin and the fixed part. Under the premise of ensuring a high degree of matching between the fixed part and the sheet metal, the injection molding efficiency is improved by increasing the adjustment efficiency of the pin, thereby improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a column-mounted injection mold in the comparative example;

[0018] Figure 2 This is a top view of a column injection mold according to Embodiment 1 of the present invention;

[0019] Figure 3 for Figure 2 A cross-sectional view of the AA plane;

[0020] Figure 4 This is a top view of a column injection mold according to Embodiment 2 of the present invention;

[0021] Figure 5 for Figure 4 A cross-sectional view of the BB plane;

[0022] Figure 6 for Figure 4 A sectional view of the C-plane;

[0023] Figure 7 This is a top view of a column injection mold according to Embodiments 3 and 4 of the present invention;

[0024] Figure 8 This is a cross-sectional view of a column injection mold according to Embodiments 3 and 4 of the present invention;

[0025] Figure 9 This is a partial structural schematic diagram of the column injection mold in Embodiment 1 of the present invention;

[0026] Figure 10 for Figure 9 A cross-sectional view of the EE plane.

[0027] Label Explanation:

[0028] 1. Model kernel;

[0029] 2. Nail post; 21. Positioning part; 22. Base;

[0030] 3. Insert; 31. Mounting slot; 32. Limiting slot; 33. Filling slot;

[0031] 4. Fasteners; 5. Glue coating; 6. Parts being fastened;

[0032] 7. Adjustment component; 71. First slider; 72. Second slider; 73. Third slider;

[0033] 8. First control component; 9. Second control component; 10. Third control component. Detailed Implementation

[0034] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0035] Please refer to Figures 2-10 A stud injection mold includes a core and inserts for embedding studs;

[0036] The insert is embedded in the mold core and can rotate relative to the mold core, and the pin can rotate relative to the insert;

[0037] The insert has mounting grooves distributed along the axial direction. The mounting grooves are not coaxial with the outer wall of the insert, and the axis of the mounting grooves is parallel to the axis of the outer wall of the insert.

[0038] The mounting groove is coaxially arranged with the base of the nail post but not coaxially arranged with the positioning part of the nail post, and the axis of the mounting groove is parallel to the axis of the positioning part.

[0039] The working principle of this invention is as follows:

[0040] The mounting groove and the outer wall of the insert are not coaxially arranged, the positioning part of the pin and the mounting groove are not coaxially arranged, while the base of the pin and the mounting groove are coaxially arranged, forming three non-coaxial parts. Thus, when the pin or the insert rotates, the relative positional relationship between the pin and the mold core is adjusted, thereby adjusting the matching degree between the fixed part and the sheet metal.

[0041] As can be seen from the above description, the beneficial effects of the present invention are as follows: by changing the structure of the pin, the positioning part of the pin can change position relative to the mold core. Specifically, the axis of the positioning part of the pin can move relative to the axis of the mold core, and the axis of the positioning part of the pin will always remain parallel to the axis of the mold core, thereby realizing the position adjustment between the pin and the fixed part. Under the premise of ensuring a high degree of matching between the fixed part and the sheet metal, the injection molding efficiency is improved by improving the adjustment efficiency of the pin, thereby improving the production efficiency.

[0042] Furthermore, it also includes fasteners;

[0043] The fastener passes through the insert along its axial direction and connects to the mold core.

[0044] As described above, fasteners are used to fix the insert to the mold core, so as to adjust the relative positional relationship between the second sliding member and the mold core, thereby adjusting the positional relationship between the pin and the mold core.

[0045] Furthermore, the side of the insert facing the open end of the mold core can form a filling groove for injection molding with the inner wall of the mold core.

[0046] As described above, the filling groove is provided to enable the pin to be quickly connected to the part being fixed.

[0047] Furthermore, the mounting groove has a limiting groove coaxially arranged with the mounting groove on one side near the open end of the mold core, and the base thickness of the nail post is greater than the axial height of the limiting groove.

[0048] As described above, the thickness of the base of the nail post is greater than the height of the limiting groove, which increases the contact area between the base of the nail post and the colloid, thereby improving the tightness of the connection.

[0049] Furthermore, the outer wall of the base is provided with an adjustment member for increasing friction. The adjustment member is arranged along the circumference of the base and can engage with the limiting groove.

[0050] As described above, the adjustment mechanism facilitates the position adjustment of the nail post, thereby improving adjustment efficiency and accuracy.

[0051] A pin-shaped injection mold includes a mold core, inserts, pins, and adjustment components;

[0052] The insert is embedded within the mold core;

[0053] The adjustment assembly includes a first slider and a second slider;

[0054] The adjustment component is embedded in the insert and the first slider is connected to the insert. The pin is installed in the second slider and the second slider can move relative to the first slider along the X-axis.

[0055] As can be seen from the above description, the beneficial effects of the present invention are: the adjustment component adjusts the relative position of the pin and the mold core in the X-axis direction, thereby achieving efficient and rapid adjustment of the positional relationship between the pin and the fixed part in the X-axis direction, and improving the matching degree between the fixed part and the sheet metal.

[0056] Furthermore, it also includes fasteners;

[0057] The fastener passes through the first slider and the insert along the axial direction of the insert and is connected to the mold core.

[0058] As described above, fasteners are used to fix the first sliding member to the insert and the mold core, so as to adjust the relative positional relationship between the second sliding member and the mold core, thereby adjusting the positional relationship between the pin and the mold core.

[0059] Furthermore, the adjustment assembly also includes a third slider;

[0060] The third slider is mounted on the end of the second slider away from the first slider and is capable of moving relative to the second slider along the Y-axis.

[0061] As described above, a third slider is provided to quickly adjust the position of the pin in the Y-axis direction, reducing the difficulty of adjusting the pin and improving the adjustment efficiency.

[0062] Furthermore, it also includes a first control component and a second control component;

[0063] The first control component is mounted on the X-axis direction of the insert and is used to push the second slider to move in the X-axis direction;

[0064] The second control component is mounted on the Y-axis of the insert and is used to push the third slider to move in the Y-axis direction.

[0065] As described above, by adding an adjustment component, the positioning part of the pin can change position relative to the mold core. Specifically, the axis of the positioning part of the pin can move relative to the axis of the mold core, and the axis of the positioning part of the pin will always remain parallel to the axis of the mold core. This achieves position adjustment between the pin and the fixed part. Under the premise of ensuring a high degree of matching between the fixed part and the sheet metal, the injection molding efficiency is improved by increasing the adjustment efficiency of the pin, thereby improving production efficiency.

[0066] Furthermore, it also includes a third control component;

[0067] The second slider is rotatable relative to the insert about the axis of the insert.

[0068] The third control component is mounted on the X-axis of the insert and is used to push the second slider to move in the X-axis direction.

[0069] As described above, a third control component is provided to quickly move the second slider in the X-axis direction, thereby improving production efficiency.

[0070] Furthermore, the first slider is rotatable relative to the insert about the axis of the insert.

[0071] As can be seen from the above description, the first slider can rotate relative to the insert to expand the adjustment range of the pin.

[0072] Furthermore, the insert is circumferentially rotatable relative to the mold core.

[0073] As described above, the insert can rotate circumferentially relative to the mold core to quickly adjust the position of the pin and improve production efficiency.

[0074] It is worth noting that the X-axis and Y-axis defined in this invention are only used to illustrate the relative positional relationship, and the actual adjustment direction of the nail column is adjusted according to the actual structure.

[0075] Comparative Example

[0076] Reference Figure 1 A pin injection mold includes a mold core 1, an insert 3 for embedding the pin 2, and a fastener 4. The fixed part 6 is connected to the pin 2 by overmolding 5. This comparative example is mainly used for injection molding of automotive parts, specifically for injection molding the fixed part to the pin to form a complete part, which can then be used for connection with automotive sheet metal.

[0077] Example 1

[0078] Reference Figures 2-3A pin injection mold includes a mold core 1 and an insert 3 for embedding pins 2; the insert 3 is embedded in the mold core 1 and can rotate relative to the mold core 1, and the pin 2 can rotate relative to the insert 3; the insert 3 has an axially distributed mounting groove 31, the mounting groove 31 is not coaxial with the outer wall of the insert 3, and the axis of the mounting groove 31 is parallel to the axis of the outer wall of the insert 3; the mounting groove 31 is coaxial with the base 22 of the pin 2 and not coaxial with the positioning part 21 of the pin 2, and the axis of the mounting groove 31 is parallel to the axis of the positioning part 21.

[0079] Reference Figures 2-3 The mounting groove 31 has a limiting groove 32 coaxially arranged with the mounting groove 31 on one side near the open end of the mold core 1, and the thickness of the base 22 of the nail post 2 is greater than the axial height of the limiting groove 32.

[0080] Reference Figure 3 It also includes a fastener 4; the fastener 4 passes through the insert 3 along the axial direction of the insert 3 and is connected to the mold core 1. Preferably, the fastener 4 is a bolt, and the insert 3 and the mold core 1 are connected by the fastener 4 after the insert 3 is adjusted to the position relative to the mold core 1.

[0081] Reference Figure 3 The side of the insert 3 facing the open end of the mold core 1 can form a filling groove 33 for injection molding with the inner wall of the mold core 1. Specifically, in this embodiment, the filling groove 33 is used to fill the overmolding 5 so that the fixed part 6 is connected to the pin 2 by injection molding through the overmolding 5, wherein the fixed part 6 is glass.

[0082] Reference Figure 3 , Figure 9 and Figure 10 The outer wall of the base 22 is provided with an adjusting member for increasing friction. The adjusting member is arranged circumferentially along the base 22 and engages with the inner wall of the limiting groove 32. Preferably, the adjusting member is a serrated or splined shape. Alternatively, an adjusting member can be provided on the outer wall of the insert 3. Specifically, if the outer walls of the base 22 and the insert 3 are provided with adjusting members, in order to adjust the relative position between the positioning part 21 of the pin 2 and the mold core 1, the base 22 needs to be separated from the injection groove 31 first, and the position of the base 22 needs to be adjusted until it is in place. After that, the base 22 is embedded into the injection groove 31, and then the insert 3 is separated from the mold core 1. After the insert 3 is adjusted to the position, the adjusting member of the insert 3 engages with the inner wall of the mold core 1 to fix the relative position between the positioning part 21 of the pin 2 and the mold core 1 after the positioning part 21 of the pin 2 is adjusted to the position.

[0083] In this embodiment, the base 22 of the rotating pin 2 is not coaxial with the positioning part 21 of the pin 2, while the positioning part 21 of the pin 2 is coaxial with the mounting groove 31, and the mounting groove 31 is also not coaxial with the outer wall of the insert 3. Therefore, when the insert 3 rotates relative to the mold core 1 or when the positioning part 21 of the pin 2 rotates relative to the mounting groove 31, the base 22 of the pin 2 can rotate around the axis of the positioning part 21, thereby adjusting the connection position between the pin 2 and the fixed part 6.

[0084] Example 2

[0085] The difference between this embodiment and embodiment one is that the mounting groove 31 is coaxially arranged with the outer wall of the insert 3, and it also includes an adjustment component 7, a first control component 8 and a second control component 9;

[0086] Reference Figures 4-6 A pin injection mold includes a mold core 1, an insert 3, an adjustment component 7, and an insert 3 for embedding pins 2; the insert 3 is embedded in the mold core 1; the adjustment component 7 includes a first sliding member 71 and a second sliding member 72; the adjustment component 7 is embedded in the insert 3 and the first sliding member 71 is connected to the insert 3, the pin 2 is installed in the second sliding member 72, and the second sliding member 72 is movable relative to the first sliding member 71 in the X-axis direction.

[0087] Reference Figure 5 and Figure 6 It also includes a fastener 4; the fastener 4 passes through the first sliding member 71 and the insert 3 along the axial direction of the insert 3 and is connected to the mold core 1.

[0088] Reference Figure 5 and Figure 6 The adjusting assembly 7 also includes a third slider 73; the third slider 73 is mounted at the end of the second slider 72 away from the first slider 71, and is movable relative to the second slider 72 along the Y-axis. Specifically, the base 22 of the nail post 2 is fixedly connected to the third slider 73. Both the second slider 72 and the third slider 73 are sliders. The first slider 71 is slidably connected to the second slider 72 through dovetail grooves and dovetail tenons distributed along the X-axis, and the second slider 72 is slidably connected to the third slider 73 through dovetail grooves and dovetail tenons distributed along the Y-axis.

[0089] Reference Figure 5 and Figure 6The system also includes a first control component 8 and a second control component 9. The first control component 8 is mounted on the X-axis of the insert 3 and is used to push the second slider 72 to move in the X-axis direction. The second control component 9 is mounted on the Y-axis of the insert 3 and is used to push the third slider 73 to move in the Y-axis direction. Preferably, both the first control component 8 and the second control component 9 include two symmetrically arranged caliper screws. The number of rotations required by the caliper screws can be calculated based on the distance the base 22 of the nail post 2 needs to move, combined with the pitch of the caliper screws, to achieve precise adjustment of the nail post 2 in the X-axis and Y-axis directions. In addition, scales can be provided on the top of the insert 3 in both the X-axis and Y-axis directions to view the actual movement distance of the nail post 2.

[0090] Example 3

[0091] The difference between this embodiment and Embodiment 1 is that it also includes an adjustment component 7;

[0092] Reference Figure 7 and Figure 8 A pin injection mold includes a mold core 1, an adjusting assembly 7, and an insert 3 for embedding pins 2. The insert 3 is embedded in the mold core 1. The adjusting assembly 7 includes a first sliding member 71 and a second sliding member 72. The adjusting assembly 7 is embedded in the insert 3, and the first sliding member 71 is connected to the insert 3. The pin 2 is installed in the second sliding member 72, and the second sliding member 72 is movable relative to the first sliding member 71 along the X-axis. The first sliding member 71 and the second sliding member 72 are slidably connected relative to each other by dovetail grooves and dovetail tenons distributed radially along the first sliding member 71.

[0093] Reference Figure 8 It also includes a fastener 4; the fastener 4 passes through the first sliding member 71 and the insert 3 along the axial direction of the insert 3 and is connected to the mold core 1.

[0094] Reference Figure 8 It also includes a third control component 10; the first slider 71 is rotatable relative to the insert 3 about the axis of the insert 3, and the third control component 10 is installed in the X-axis direction of the insert 3 to push the second slider 72 to move in the X-axis direction. Specifically, the third control component 10 includes two symmetrically arranged caliper screws, which can calculate the number of rotations required by the caliper screws based on the distance the base 22 of the nail post 2 needs to move and the pitch of the caliper screws, so as to achieve precise adjustment of the nail post 2 in the X-axis direction.

[0095] The working principle of this embodiment is as follows: after the first sliding member 71 is rotated relative to the insert 3 by the required angle, the third control component 10 controls the first sliding member 71 to move relative to the second sliding member 72 in the X-axis direction to complete the position adjustment of the nail post 2.

[0096] In this embodiment, to facilitate the control of the third control component 10, the first sliding member 71 and the second sliding member 72 need to be adjusted into position before the insert 3 is embedded into the mold core 1. At the same time, a scale can be set on the top of the insert 3 so that the base 22 of the nail post 2 can be positioned within the insert 3.

[0097] Example 4

[0098] Reference Figure 8 Based on Embodiment 3, the insert 3 can rotate circumferentially relative to the mold core 1.

[0099] The working principle of this embodiment is as follows: the second sliding member 72 is moved to the desired position by the third control component 10, and then the insert 3 is embedded in the mold core 1. The insert 3 is controlled to rotate in the circumferential direction along the inner wall of the mold core 1 until the first sliding member 71 and the second sliding member 72 rotate to the desired position with the insert 3.

[0100] In summary, the pin injection mold provided by this invention forms three parts with different axes by setting the positions of the mounting groove, the base of the pin, and the positioning part of the pin. By using rotation, the base of the pin can rotate around the axis of the positioning part of the pin and the axis of the mounting groove, achieving rapid position adjustment. This allows for rapid adjustment of the relative positional relationship between the fixed part and the sheet metal. Furthermore, by setting the adjustment component, the first control component, and the second control component, simultaneous adjustment in the X-axis and Y-axis directions can be achieved. By setting the adjustment component and the third control component, synchronous adjustment in the X-axis and R-axis directions or movement in the R-axis direction and the radial direction of the second sliding member can be achieved. All of these adjustment methods do not require replacement or modification of the inserts and can achieve rapid adjustment of the pin position, greatly improving production efficiency.

[0101] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A column injection mold, characterized in that, Includes a mold core, adjustment components, and inserts for setting the pins; The insert is embedded within the mold core; The adjustment assembly includes a first slider and a second slider; The adjustment component is embedded in the insert and the first slider is connected to the insert. The pin is installed in the second slider and the second slider can move relative to the first slider along the X-axis.

2. The column injection mold according to claim 1, characterized in that, It also includes fasteners; The fastener passes through the first slider and the insert along the axial direction of the insert and is connected to the mold core.

3. The column injection mold according to claim 1 or 2, characterized in that, The adjustment assembly also includes a third slider; The third slider is mounted on the end of the second slider away from the first slider and is capable of moving relative to the second slider along the Y-axis.

4. The column injection mold according to claim 3, characterized in that, It also includes a first control component and a second control component; The first control component is mounted on the X-axis direction of the insert and is used to push the second slider to move in the X-axis direction; The second control component is mounted on the Y-axis of the insert and is used to push the third slider to move in the Y-axis direction.

5. The column injection mold according to claim 1, characterized in that, It also includes a third control component; The third control component is mounted on the X-axis of the insert and is used to push the second slider to move in the X-axis direction.

6. The column injection mold according to claim 5, characterized in that, The first slider is rotatable relative to the insert about the axis of the insert.

7. The column injection mold according to claim 1 or 5, characterized in that, The insert is circumferentially rotatable relative to the mold core.

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