Injection mold for product with perforated hole wiping position
By introducing a guide block and guide groove combination and positioning structure into the injection mold, the problem of rubbing and burning at the rubbing hole position is solved, ensuring the quality of the injection molded product and the stability of the mold.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-03-13
AI Technical Summary
Existing injection molds are prone to burning at the perforation points, resulting in poor quality of the injection molded products. This is especially true for smaller products, where it is difficult to effectively avoid by adjusting the draft angle.
By setting guide blocks and guide grooves between mold base mechanisms, the relative horizontal movement between mold base mechanisms is restricted. Combined with the use of positioning blocks and positioning grooves, positioning pins and positioning sleeves, the mold is ensured to remain stable during mold opening and closing, reducing the possibility of rubbing and burning.
It effectively reduces the occurrence of mold rubbing and burning, ensures the quality of injection molded products, and improves the durability and processing precision of the mold.
Smart Images
Figure CN223989706U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold for a product with a puncture hole. Background Technology
[0002] Penetration is a method of creating holes in injection-molded products by having inserts contact and fit together. Some existing injection-molded products require this penetration method to create specific hole structures during injection molding. For example... Figure 1 As shown, the main body 10 of the product has a rubbing hole 11. During the injection molding process, the inserts on the mold cores of the two mold base mechanisms contact and engage with each other at the rubbing hole 11. However, during mold opening, due to machining accuracy limitations, the inserts may experience lateral displacement, leading to steel rubbing at the rubbing hole 11, thus affecting the quality of the injection molded product. Existing solutions typically involve increasing the draft angle of the product to maximize the rubbing contact angle and reduce the possibility of rubbing. However, for smaller products, the adjustment range of the draft angle is limited by size, making it difficult to effectively avoid mold rubbing. Therefore, it is necessary to optimize the mold structure to help reduce the possibility of mold rubbing. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an injection mold for a product with a rubbing hole, which, when the first mold base mechanism and the second mold base mechanism open and close, restricts the relative horizontal movement between the first mold base mechanism and the second mold base mechanism through the cooperation of a guide block and a guide groove, thereby reducing the possibility of rubbing and burning of the mold and ensuring the quality of the injection molded product.
[0004] According to an embodiment of the present invention, an injection mold for a product with a puncture hole includes a first mold base mechanism and a second mold base mechanism. The first mold base mechanism has a first mold core and a first insert. The second mold base mechanism is located below the first mold base mechanism and can be closed or opened with the first mold base mechanism. The second mold base mechanism has a second mold core and a second insert. The side of the second mold base mechanism has a guide block extending towards the first mold base mechanism. Two guide blocks are provided and are respectively located on both sides of the second mold base mechanism. The first mold base mechanism is correspondingly provided with a guide groove for the guide block to be inserted. When the first mold base mechanism and the second mold base mechanism are closed or opened, the guide block can cooperate with the guide groove to restrict the relative horizontal movement of the first mold base mechanism and the second mold base mechanism.
[0005] The injection mold for a product with a rubbing hole according to the embodiments of the present invention has at least the following beneficial effects: In use, the first mold base mechanism and the second mold base mechanism move up and down relative to each other to realize the mold closing and opening; during the mold opening and closing operation, the guide block on the side of the second mold base mechanism is inserted into and cooperates with the guide groove on the side of the first mold base mechanism. The cooperation between the guide block and the guide groove limits and guides the relative up and down movement between the first mold base mechanism and the second mold base mechanism, thereby limiting the relative horizontal movement between them, thereby reducing the possibility of the mold rubbing and burning phenomenon and ensuring the quality of the injection molded product.
[0006] According to some embodiments of the present invention, a detachable pad is provided on the groove wall of the guide groove, and the pad is in contact with the guide block.
[0007] According to some embodiments of the present invention, the guide block has a groove on its side, and the groove is arranged in a zigzag shape.
[0008] According to some embodiments of the present invention, the guide block is detachably connected to the second mold base mechanism.
[0009] According to some embodiments of the present invention, one of the first mold core and the second mold core is provided with a positioning block, and the other is provided with a positioning groove for insertion and cooperation with the positioning block.
[0010] According to some embodiments of the present invention, the positioning blocks are provided on the front, rear, left and right sides of the first mold core, and the positioning grooves are provided on the front, rear, left and right sides of the second mold core.
[0011] According to some embodiments of the present invention, the positioning block is detachably connected to the first mold core or the second mold core.
[0012] According to some embodiments of the present invention, one of the first insert and the second insert is provided with a positioning post, and the other is provided with a positioning sleeve for insertion and cooperation with the positioning post.
[0013] According to some embodiments of the present invention, the positioning post is detachably connected to the upper part of the second insert, and the positioning sleeve is detachably connected to the lower part of the first insert.
[0014] According to some embodiments of the present invention, both the side of the first mold base mechanism and the side of the second mold base mechanism are provided with side locks. When the first mold base mechanism and the second mold base mechanism are closed, the side locks on the first mold base mechanism and the side locks on the second mold base mechanism cooperate.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0017] Figure 1 This is a schematic diagram of the structure of a product with a puncture hole in the background art of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of an injection mold for a product with a puncture hole according to an embodiment of the present invention;
[0019] Figure 3 for Figure 2 One of the structural schematic diagrams of a medium-sized injection mold;
[0020] Figure 4 for Figure 2 Partial structural schematic diagram of a Chinese injection mold (Part 2);
[0021] Figure 5 for Figure 2 A schematic diagram of a partial structural cross-section of an injection mold.
[0022] Figure label:
[0023] Product body 10, puncture hole 11;
[0024] The components include: a first mold base mechanism 100, a guide groove 101, a first mold core 110, a positioning block 111, a first insert 120, a positioning sleeve 121, and a pad block 130.
[0025] The components include a second mold base mechanism 200, a second mold core 210, a positioning groove 211, a second insert 220, a positioning post 221, a guide block 230, a groove 231, and a side lock 240. Detailed Implementation
[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0027] In the description of this utility model, it should be understood that if directional descriptions are involved, such as up, down, front, back, left, right, etc., indicating the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0028] In the description of this utility model, if words such as several, greater than, less than, exceeding, above, below, or within appear, several means one or more, multiple means two or more, greater than, less than, exceeding, etc. are understood to exclude the number itself, and above, below, or within are understood to include the number itself.
[0029] If the terms "first" and "second" are used only to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.
[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0031] Reference Figure 2 , Figure 3 and Figure 4 An injection mold for a product having a perforated hole includes a first mold base mechanism 100 and a second mold base mechanism 200. The first mold base mechanism 100 has a first mold core 110 with a first insert 120. The second mold base mechanism 200 is located below the first mold base mechanism 100 and can be closed or opened with the first mold base mechanism 100. The second mold base mechanism 200 has a second mold core 210 with a second insert 220. The side of the 00 is provided with a guide block 230 extending towards the first mold base mechanism 100. There are two guide blocks 230 and they are respectively located on both sides of the second mold base mechanism 200. The first mold base mechanism 100 is provided with a guide groove 101 for the guide block 230 to be inserted. When the first mold base mechanism 100 and the second mold base mechanism 200 are closing or opening the mold, the guide block 230 can cooperate with the guide groove 101 to restrict the relative horizontal movement of the first mold base mechanism 100 and the second mold base mechanism 200.
[0032] Understandably, such as Figure 2 , Figure 3 and Figure 4As shown, the second mold base mechanism 200 is located below the first mold base mechanism 100. Both the front and rear sides of the second mold base mechanism 200 are provided with upwardly extending guide blocks 230. Correspondingly, the front and rear sides of the first mold base mechanism 100 are provided with guide grooves 101 for the guide blocks 230 to be inserted. The guide blocks 230 are relatively large, elongated block structures, capable of passing through at least one layer of the first mold base mechanism 100. In use, the first mold base mechanism 100 and the second mold base mechanism 200 move relative to each other vertically to achieve mold closing and opening. During mold opening and closing operations, the guide blocks 230 on the side of the second mold base mechanism 200 are inserted into and cooperate with the guide grooves 101 on the side of the first mold base mechanism 100. The cooperation between the guide blocks 230 and the guide grooves 101 limits and guides the relative vertical movement between the first mold base mechanism 100 and the second mold base mechanism 200, restricting their relative horizontal movement and reducing the possibility of mold burning, thus ensuring the quality of the injection molded product.
[0033] In practical applications, the two guide blocks 230 can also be set on the left and right sides of the second mold base mechanism 200. The specific structure of the first mold base mechanism 100 and the second mold base mechanism 200 can be set according to actual usage needs.
[0034] In some embodiments, a removable pad 130 is provided on the groove wall of the guide groove 101, and the pad 130 contacts and engages with the guide block 230.
[0035] Understandably, such as Figure 2 and Figure 4 As shown, the pad 130 is detachably connected to the wall of the guide groove 101. When the guide block 230 is inserted into the guide groove 101, it contacts and engages with the pad 130. During use, different pads 130 can be replaced as needed. On one hand, the pad 130 can compensate for the gap between the guide block 230 and the wall of the guide groove 101, achieving a better limiting and guiding effect. On the other hand, after prolonged use and wear, the pad 130 can be replaced with a new one, improving durability. In practical applications, the pad 130 can be detachably connected to the wall of the guide groove 101 using bolts or other threaded components, or it can be detachably connected using a snap-fit structure, depending on the specific application requirements.
[0036] In some embodiments, the guide block 230 has a groove 231 on its side, and the groove 231 is arranged in a zigzag shape.
[0037] Understandably, such as Figure 2 and Figure 3As shown, the groove 231 is in the shape of a broken line and is provided on the left and right side walls of the guide block 230. In use, the left and right side walls of the guide block 230 contact and cooperate with the pads 130 on the left and right side walls of the guide groove 101. By providing the groove 231, the contact area between the two can be reduced, reducing contact wear. At the same time, it is also beneficial to reduce the machining accuracy requirements of the left and right side contact surfaces of the guide block 230, making it easier to use. In practical applications, the groove 231 can be set according to the actual use needs.
[0038] In some embodiments, the guide block 230 is detachably connected to the second mold base mechanism 200. It is understood that, as Figure 2 and Figure 3 As shown, the guide block 230 is detachably connected to the side of the second mold base mechanism 200 by bolts. By making the guide block 230 a detachable structure, on the one hand, the guide block 230 and the corresponding templates on the second mold base mechanism 200 can be processed separately, reducing the processing difficulty; on the other hand, after long-term use and wear, the guide block 230 can be replaced with a new one, improving durability. In practical applications, in addition to the above structure, the guide block 230 can also be detachably connected to the second mold base mechanism 200 by means of pins or snap-fit structures, which can be set according to actual usage needs.
[0039] In some embodiments, one of the first mold core 110 and the second mold core 210 is provided with a positioning block 111, and the other is provided with a positioning groove 211 for insertion and engagement with the positioning block 111.
[0040] Understandably, such as Figure 3 and Figure 4 As shown, the positioning block 111 is located on the first mold core 110, and the positioning groove 211 is correspondingly located on the second mold core 210. During mold opening and closing operations, the positioning block 111 on the first mold core 110 inserts into and cooperates with the positioning groove 211 of the second mold core 210. This cooperation positions the first mold core 110 and the second mold core 210 during mold opening and closing, limiting relative horizontal movement and further reducing the possibility of rubbing or burning, thus ensuring the quality of the injection molded product. In practical applications, the positioning block 111 can also be located on the second mold core 210, in which case the positioning groove 211 is correspondingly located on the first mold core 110. The specific configuration can be adjusted according to actual usage requirements.
[0041] In some embodiments, the first mold core 110 is provided with positioning blocks 111 on the front, rear, left and right sides, and the second mold core 210 is provided with positioning grooves 211 on the front, rear, left and right sides.
[0042] Understandably, such as Figure 3 and Figure 4As shown, each first mold core 110 is provided with four positioning blocks 111, which are respectively located on the front, rear, left, and right sides of the first mold core 110. Correspondingly, the front, rear, left, and right sides of the second mold core 210 are each provided with positioning grooves 211. This allows for better positioning between the first mold core 110 and the second mold core 210 through horizontal side insertion, facilitating use. In practical applications, the specific number and distribution of positioning blocks 111 and positioning grooves 211 can be set according to actual usage needs.
[0043] In some embodiments, the positioning block 111 is detachably connected to the first mold core 110 or the second mold core 210. It is understood that, as Figure 4 As shown, the positioning block 111 is detachably connected to the first mold core 110 by bolts. By making the positioning block 111 a detachable structure, on the one hand, the positioning block 111 and the first mold core 110 can be machined separately, reducing the machining difficulty; on the other hand, after the positioning block 111 wears out due to long-term use, a new positioning block 111 can be replaced, improving durability. Moreover, since both the positioning block 111 and the guide block 230 are detachable, their installation and connection can be adjusted as needed during actual use, which helps to avoid over-positioning. In practical applications, in addition to the above structure, the positioning block 111 can also be detachably connected to the first mold core 110 through a pin or snap-fit structure, depending on the actual usage requirements.
[0044] In some embodiments, one of the first insert 120 and the second insert 220 is provided with a positioning post 221, and the other is provided with a positioning sleeve 121 for insertion and engagement with the positioning post 221.
[0045] Understandably, such as Figure 3 and Figure 5 As shown, the positioning pin 221 is located on the second insert 220, and the positioning sleeve 121 is correspondingly located on the first insert 120. During mold opening and closing operations, the positioning pin 221 on the second insert 220 inserts into and cooperates with the positioning sleeve 121 of the first insert 120. Through their cooperation, the relative vertical movement between the first insert 120 and the second insert 220 is limited and guided, thereby restricting relative horizontal movement between them during mold opening and closing, further reducing the possibility of rubbing and burning, and ensuring the quality of the injection molded product. In practical applications, the positioning pin 221 can also be located on the first insert 120, in which case the positioning sleeve 121 is correspondingly located on the second insert 220. The specific configuration can be adjusted according to actual usage requirements.
[0046] In some embodiments, the positioning post 221 is detachably connected to the upper part of the second insert 220, and the positioning sleeve 121 is detachably connected to the lower part of the first insert 120.
[0047] Understandably, such as Figure 3 and Figure 5 As shown, the positioning post 221 is detachably connected to the upper part of the second insert 220 by bolts, and the positioning sleeve 121 is detachably connected to the lower part of the first insert 120 by bolts. By making both the positioning post 221 and the positioning sleeve 121 detachable structures, on the one hand, the positioning post 221 and the second insert 220, as well as the positioning sleeve 121 and the first insert 120, can be machined separately, reducing machining difficulty. On the other hand, after prolonged use and wear, the positioning post 221 and the positioning sleeve 121 can be replaced with new ones, improving durability. Furthermore, since the guide block 230, positioning block 111, positioning post 221, and positioning sleeve 121 are all detachable, the installation and connection of each positioning guide structure can be adjusted as needed during actual use, which helps avoid over-positioning. In practical applications, in addition to the above structures, the positioning post 221 and the positioning sleeve 121 can also be detachably connected by pins or snap-fit structures, depending on the actual usage requirements.
[0048] In some embodiments, the sides of the first mold base mechanism 100 and the second mold base mechanism 200 are both provided with side locks 240. When the first mold base mechanism 100 and the second mold base mechanism 200 are closed, the side locks 240 on the first mold base mechanism 100 and the side locks 240 on the second mold base mechanism 200 engage.
[0049] Understandably, such as Figure 2 , Figure 3 and Figure 4 As shown, the first mold base mechanism 100 and the second mold base mechanism 200 are both provided with side locks 240 on their left and right sides. When the first mold base mechanism 100 and the second mold base mechanism 200 are closed, the side locks 240 on the first mold base mechanism 100 and the side locks 240 on the second mold base mechanism 200 cooperate to fix the two mold bases of the mold, ensuring that the mold remains stable during the injection molding process, preventing the mold plate from shifting or deforming, and ensuring the smooth progress of the injection molding process. In practical applications, the specific structure of the side locks 240 can be set according to the actual needs. Since the specific structure of the side locks 240 in this embodiment is known to those skilled in the art, it will not be described in detail here.
[0050] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An injection mold for a product having a wipe-through hole, characterized by, The utility model relates to a first mould base mechanism, the first mould base mechanism has first mould core, and the first mould core is equipped with first insert piece, second mould base mechanism is equipped with the downside of first mould base mechanism and can with first mould base mechanism mould or open mould, second mould base mechanism has second mould core, and the second mould core is equipped with second insert piece, and the side of second mould base mechanism is equipped with the guide block of extending protruding towards first mould base mechanism, and the guide block is equipped with two and respectively located two sides of second mould base mechanism, and first mould base mechanism corresponds and is equipped with the guide groove that guide block inserts, when first mould base mechanism and second mould base mechanism carry out mould or open mould, the guide block can cooperate with guide groove to limit the horizontal movement of first mould base mechanism and second mould base mechanism relative. The groove wall of the guide groove is provided with a detachable pad block, and the pad block is in contact with the guide block. The side of the guide block is provided with a groove, and the groove is in the shape of a fold line.
2. Injection mold for a product with a scratch hole according to claim 1, characterized in that, The guide block is detachably connected to the second mould base mechanism.
3. The injection mold for a product having a scratch hole according to claim 1, wherein One of the first mould core and the second mould core is provided with a positioning block, and the other is provided with a positioning groove corresponding to the positioning block.
4. The injection mold for a product having a scratch hole according to claim 1, wherein The front side, back side, left side and right side of the first mould core are provided with the positioning block, and the front side, back side, left side and right side of the second mould core are provided with the positioning groove.
5. The injection mold for a product having a scratch hole according to claim 1, wherein The positioning block is detachably connected to the first mould core or the second mould core.
6. Injection mold for a product with a scratch hole according to claim 5, characterized in that, One of the first insert piece and the second insert piece is provided with a positioning column, and the other is provided with a positioning sleeve corresponding to the positioning column.
7. The injection mold for a product having a scratch hole according to claim 5, wherein The positioning column is detachably connected to the upper part of the second insert piece, and the positioning sleeve is detachably connected to the lower part of the first insert piece.
8. The injection mold for a product having a scratch hole according to claim 1, wherein The side of the first mould base mechanism and the side of the second mould base mechanism are provided with an edge lock, and the edge lock on the first mould base mechanism and the edge lock on the second mould base mechanism are matched when the first mould base mechanism and the second mould base mechanism are moulded.
9. Injection mold for a product with a scribed hole according to claim 8, characterized in that, 10. The injection mold for a product having a scratch hole according to claim 1, wherein