Injection mold with guide positioning pin

Abstract

The utility model discloses an injection mold with guide positioning pins, which comprises a lower mold and an upper mold, the top of the lower mold is provided with a plurality of symmetrically distributed mounting grooves, guide positioning pieces are connected in the mounting grooves in a sliding and penetrating manner, and the mounting grooves are provided with dismounting mechanisms; a mounting groove is formed in the guide positioning piece, the dismounting and mounting mechanism comprises a fastening screw hole formed in the bottom of the guide positioning piece, a fastening groove is formed in the bottom of the mounting groove, a connecting block is arranged in the fastening groove, the top of the connecting block extends into the mounting groove in a sliding mode, and a containing groove is formed in the bottom of the connecting block. According to the injection mold with the guide positioning pin, the upper mold and the lower mold can be conveniently and accurately folded through the arranged guide positioning piece, so that the forming effect of an injection molding piece is improved, meanwhile, the guide positioning pin can be rapidly replaced and maintained through the arranged dismounting and mounting mechanism when the guide positioning pin is damaged and broken, the maintenance time is shortened, and thus the injection molding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of locating pins for injection moulds, in particular to an injection mould with guide locating pins. Background Art

[0002] During the processing of automobiles, some of its parts need to be processed by injection molding, and plastic molds are tools that are used in the plastic processing industry to match plastic molding machines and give plastic products a complete configuration and precise size. Due to the wide variety of plastics and processing methods, the structures of plastic molding machines and plastic products vary in complexity, and the types and structures of plastic molds are also diverse. When using injection molds, it is often necessary to close two molds together.

[0003] The publication number CN 213729192 U discloses a positioning guide integrated pin for mold clamping, including an upper core box body, a positioning guide pin, a positioning section and a guide section, wherein the upper core box body is embedded with the positioning guide pin, the positioning section is formed on the positioning guide pin, the guide section is arranged below the positioning section, and the guide section is formed on the positioning guide pin. The beneficial effect is that the practical new type integrates the positioning pin and the guide pin by arranging the positioning guide pin, the positioning section and the guide section, and the diameter of the positioning section and the guide section differs by 0.7-2mm, not only eliminating the guide pin, the guide pin seat and the guide pin sleeve installed on the upper core box fixing plate and the lower core box fixing plate, but also during use, the guide positioning is in place at one time, the clamping and opening of the mold are smooth, the sand core is produced without deviation, the clamping effect of the device is guaranteed, and the practicality of the device is improved.

[0004] However, the mold has the following shortcomings: when the mold is in use, the upper core box body and the lower core box body are accurately positioned by positioning guide pins. However, the positioning guide pins are often worn on the surface after long-term use, and even broken due to misoperation, which affects the positioning accuracy. It is inconvenient for operators to replace and repair them, which affects the use effect.

[0005] To this end, the utility model provides an injection mold with a guide positioning pin to solve the above problem. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides an injection mold with a guide positioning pin to solve the above problems.

[0007] To achieve the above purpose, the utility model is implemented by the following technical solutions: an injection mold with a guide positioning pin, comprising a lower mold and an upper mold, the top of the lower mold is provided with a plurality of symmetrically distributed installation grooves, the installation grooves are slidably inserted with guide positioning pieces, and the installation grooves are provided with a disassembly mechanism;

[0008] The disassembly and assembly mechanism includes a fastening screw hole formed at the bottom of the guide positioning member, a fastening slot formed at the bottom of the mounting slot, a connecting block provided in the fastening slot, the top of the connecting block slidingly extending into the mounting slot, a placement slot formed at the bottom of the connecting block, a control column provided in the placement slot, one end of the control column is fixedly connected to a fastening screw, the fastening screw thread passes through the connecting block, and the top thread of the fastening screw extends into the fastening screw hole.

[0009] Preferably, the inner wall of the fastening groove is provided with two symmetrically distributed mounting screw holes, and one side of the placement groove is provided with two grooves, and mounting screws are provided in the two grooves. The mounting screw threads pass through the connecting block, and one end of the mounting screw threads extend into the corresponding mounting screw holes. The connecting block can be conveniently fastened and installed in the fastening groove by using the provided mounting screw holes, grooves and mounting screws, which is convenient for installation and use.

[0010] Preferably, a plurality of symmetrically distributed positioning grooves are provided on the top of the upper mold, a pin sleeve is fixedly connected in the positioning groove, an inclined guide groove is provided at one end of the pin sleeve, a guide hole is provided in the inclined guide groove, and the positioning groove, pin sleeve, inclined guide groove and guide hole are used in combination to facilitate the closing of the upper mold and the lower mold, so as to facilitate their positioning.

[0011] Preferably, a positioning portion is fixedly connected to the top of the guide positioning member, and the top of the positioning portion slides and extends into the inclined guide groove. The positioning accuracy of the upper mold and the lower mold can be improved by the positioning portion provided on the guide positioning member and the inclined guide groove in the pin sleeve.

[0012] Preferably, the top of the positioning part is fixedly connected to a guide part, the top of the guide part slides and extends into the guide hole, and the top of the guide part is fixedly connected to an anti-collision pad. The guide part and the guide hole are used in combination to facilitate guiding the guide positioning part into the pin sleeve when the upper mold and the lower mold are closed.

[0013] Preferably, a lower cavity is provided at the top of the lower mold, an upper cavity is provided at the bottom of the upper mold, and an injection port is provided on the top inner wall of the upper cavity. The lower cavity, upper cavity and injection port are used together to facilitate injection molding.

[0014] Preferably, the outer side of the lower mold is fixedly connected with a plurality of lower side locks, and the outer wall of the upper mold is fixedly connected with a plurality of upper side locks. The lower mold can be easily aligned with the upper mold by using the lower side locks and the upper side locks in combination, thereby improving the positioning accuracy. Beneficial Effects

[0015] The utility model provides an injection mold with a guide positioning pin. Compared with the prior art, it has the following beneficial effects:

[0016] (1) The injection mold with guide positioning pins can facilitate the accurate closing of the upper mold and the lower mold through the provided guide positioning parts, thereby improving the molding effect of the injection molded parts. At the same time, the provided disassembly and assembly mechanism can quickly replace and repair the guide positioning pins when they are damaged or broken, thereby reducing the maintenance time and improving the injection molding efficiency.

[0017] (2) The injection mold with the guide positioning pin can improve the positioning accuracy of the upper mold and the lower mold by means of the positioning portion provided on the guide positioning member and the inclined guide groove in the pin sleeve. At the same time, the provided guide portion and the guide hole can be used together to facilitate guiding the guide positioning member into the pin sleeve when the upper mold and the lower mold are closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0019] Figure 2 It is a side cross-sectional structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the relevant exploded structure of the disassembly and assembly mechanism in the utility model;

[0021] Figure 4 It is a cross-sectional assembly diagram of the pin sleeve in the utility model;

[0022] Figure 5 It is a schematic cross-sectional structure diagram of the lower mold in the utility model;

[0023] Figure 6 It is a schematic cross-sectional structural diagram of the upper mold in the utility model.

[0024] In the figure: 1. lower mold; 2. upper mold; 3. mounting groove; 4. guide positioning piece; 5. fastening screw hole; 6. fastening groove; 7. connecting block; 8. placement groove; 9. control column; 10. fastening screw; 11. mounting screw hole; 12. groove; 13. mounting screw; 14. positioning groove; 15. pin sleeve; 16. inclined guide groove; 17. guide hole; 18. positioning part; 19. guide part; 20. anti-collision pad; 21. lower cavity; 22. upper cavity; 23. injection port; 24. lower side lock; 25. upper side lock. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0026] See also Figure 1 , Figure 2 and Figure 3 , an injection mold with a guide positioning pin, comprising a lower mold 1 and an upper mold 2, a plurality of symmetrically distributed mounting grooves 3 are provided on the top of the lower mold 1, a guide positioning member 4 is slidably inserted and connected in the mounting groove 3, and a disassembly mechanism is provided on the mounting groove 3;

[0027] The disassembly and assembly mechanism includes a fastening screw hole 5 opened at the bottom of the guide positioning member 4, a fastening groove 6 opened at the bottom of the mounting groove 3, a connecting block 7 is arranged in the fastening groove 6, the top of the connecting block 7 slides and extends into the mounting groove 3, a placement groove 8 opened at the bottom of the connecting block 7, a control column 9 is arranged in the placement groove 8, one end of the control column 9 is fixedly connected with a fastening screw 10, the fastening screw 10 threadedly penetrates the connecting block 7, and the top thread of the fastening screw 10 extends into the fastening screw hole 5; the inner wall of the fastening groove 6 is provided with two symmetrically distributed mounting screw holes 11, one side of the placement groove 8 is provided with two grooves 12, and mounting screws 13 are arranged in both grooves 12, the mounting screw 13 threadedly penetrates the connecting block 7, and one end of the mounting screw 13 threadedly extends into the corresponding mounting screw hole 11. Example

[0028] See also Figures 1 to 6 , this embodiment provides a technical solution based on the first embodiment: a plurality of symmetrically distributed positioning grooves 14 are provided on the top of the upper mold 2, a pin sleeve 15 is fixedly connected in the positioning groove 14, an inclined guide groove 16 is provided at one end of the pin sleeve 15, and a guide hole 17 is provided in the inclined guide groove 16; a positioning portion 18 is fixedly connected to the top of the guide positioning member 4, the outer edge of the positioning portion 18 is in a conical shape, and the top of the positioning portion 18 slides and extends into the inclined guide groove 16; a guide portion 19 is fixedly connected to the top of the positioning portion 18, the top of the guide portion 19 slides and extends into the guide hole 17, and an anti-collision pad 20 is fixedly connected to the top of the guide portion 19, and the anti-collision pad 20 is made of wear-resistant plastic material; a lower cavity 21 is provided on the top of the lower mold 1, an upper cavity 22 is provided at the bottom of the upper mold 2, and a material injection port 23 is provided on the top inner wall of the upper cavity 22; a plurality of lower side locks 24 are fixedly connected to the outer side of the lower mold 1, and a plurality of upper side locks 25 are fixedly connected to the outer wall of the upper mold 2.

[0029] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] In the description of this article, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold with a guide locating pin, comprising a lower mold (1) and an upper mold (2), characterized in that: The top of the lower mold (1) is provided with a plurality of symmetrically distributed installation grooves (3), the installation grooves (3) are slidably connected with guide positioning members (4), and the installation grooves (3) are provided with disassembly and assembly mechanisms; The disassembly and assembly mechanism comprises a fastening screw hole (5) provided at the bottom of the guide positioning member (4); a fastening slot (6) is provided at the bottom of the installation slot (3); a connecting block (7) is provided in the fastening slot (6); the top of the connecting block (7) slides and extends into the installation slot (3); a placement slot (8) is provided at the bottom of the connection block (7); a control column (9) is provided in the placement slot (8); one end of the control column (9) is fixedly connected with a fastening screw (10); the fastening screw (10) is threadedly passed through the connection block (7); and the top thread of the fastening screw (10) extends into the fastening screw hole (5).

2. The injection mold with guide pins according to claim 1, characterized in that: The inner wall of the fastening groove (6) is provided with two symmetrically distributed mounting screw holes (11), and one side of the placement groove (8) is provided with two grooves (12). A mounting screw (13) is provided in each of the two grooves (12). The mounting screw (13) is threadedly passed through the connecting block (7), and one end of the mounting screw (13) is threadedly extended into the corresponding mounting screw hole (11).

3. The injection mold with guide pins according to claim 1, characterized in that: The top of the upper mold (2) is provided with a plurality of symmetrically distributed positioning grooves (14), a pin sleeve (15) is fixedly connected in the positioning groove (14), an inclined guide groove (16) is provided at one end of the pin sleeve (15), and a guide hole (17) is provided in the inclined guide groove (16).

4. The injection mold with guide pins according to claim 3, characterized in that: The top end of the guide positioning member (4) is fixedly connected to a positioning portion (18), and the top of the positioning portion (18) slidably extends into the inclined guide groove (16).

5. The injection mold with guide pins according to claim 4, characterized in that: The top of the positioning portion (18) is fixedly connected to a guide portion (19), the top of the guide portion (19) slides and extends into the guide hole (17), and the top of the guide portion (19) is fixedly connected to an anti-collision pad (20).

6. The injection mold with guide pins according to claim 1, characterized in that: The top of the lower mold (1) is provided with a lower mold cavity (21), the bottom of the upper mold (2) is provided with an upper mold cavity (22), and the top inner wall of the upper mold cavity (22) is provided with an injection port (23).

7. The injection mold with guide pins according to claim 1, characterized in that: The outer side of the lower mold (1) is fixedly connected to a plurality of lower side locks (24), and the outer wall of the upper mold (2) is fixedly connected to a plurality of upper side locks (25).

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