Die insert fixing mechanism

Abstract

The utility model provides a mold insert fixing mechanism which comprises a base, a first mold and a second mold, and a cavity is formed between the first mold and the second mold; an insert seat is arranged on the base, an insert hole suitable for placing an insert screw is formed in the insert seat, and an ejector pin is arranged in the insert; a top seat is arranged on the first mold and the second mold, a mounting hole communicated with the cavity is formed in the top seat, a fixed insert pin is slidably connected in the mounting hole, and the fixed insert pin is located above the insert hole; when the bottom end of the fixed insert pin abuts against the top end of the insert screw, the fixed insert pin has the trend of moving downwards, so that the insert screw is positioned in the insert hole. The insert screw is stably fixed in the insert hole by using the fixed insert pin before mold closing, so that the mold is prevented from being damaged by touching the insert screw during mold closing, and the service life of the mold is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold insert fixing mechanism. Background Art

[0002] Some products need to have inserts placed in the mold cavity in advance during the production process, so that they can form a whole after casting. However, due to processing problems, inserts, such as insert screws, have slight burrs on the outer diameter, which makes it difficult to place the insert screws in place or to put them to the bottom during installation. As a result, the mold is damaged by the insert screws during mold closing, which not only affects the service life of the mold, but also leads to inferior products, affecting production.

[0003] In view of this, the applicant filed this application after studying the existing technology. Utility Model Content

[0004] The utility model provides a mold insert fixing mechanism, aiming to improve at least one of the above technical problems.

[0005] To solve the above technical problems, the utility model provides a mold insert fixing mechanism, comprising a base and a first mold and a second mold symmetrically arranged above the base, wherein a cavity is formed between the first mold and the second mold; an insert seat is arranged on the base, and an insert hole suitable for placing an insert screw is arranged on the insert seat, and a ejector pin is arranged in the insert; a top seat is arranged on the first mold and the second mold, and a mounting hole connected to the cavity is arranged in the top seat, and a fixed insert pin is slidably connected in the mounting hole, and the fixed insert pin is located above the insert hole; when the bottom end of the fixed insert pin abuts against the top end of the insert screw, the fixed insert pin has a tendency to move downward, thereby positioning the insert screw in the insert hole.

[0006] As a further optimization, a mounting groove is coaxially arranged at the upper end of the mounting hole, a mounting block is arranged in the mounting groove, and a through hole is penetrated by the mounting block; a protrusion is radially protruded on the upper circumference of the fixed pin, and a spring is arranged between the protrusion and the mounting block.

[0007] As a further optimization, an adjustment kit is rotatably connected to the through hole, and the lower end of the adjustment kit is against the spring.

[0008] As a further optimization, two support frames are symmetrically arranged on the upper end of the mounting block, and grooves are arranged on the top ends of the support frames; and crossbar portions are protruding on both sides of the upper end of the fixed inlay pin.

[0009] As a further optimization, the cross section of the support frame is arranged in an arc shape.

[0010] As a further optimization, the fixed insert pin and the insert hole are eccentrically arranged.

[0011] As a further optimization, a chamfered portion is provided at the bottom end of the fixed inlay pin.

[0012] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0013] The present application provides a mold insert fixing mechanism, including a base, a first mold and a second mold, wherein a mold cavity is formed between the first mold and the second mold; an insert seat is provided on the base, an insert hole suitable for placing an insert screw is provided on the insert seat, and an ejector pin is provided in the insert; an ejector seat is provided on the first mold and the second mold, and a mounting hole connected to the mold cavity is provided in the ejector seat, and a fixed insert pin is slidably connected in the mounting hole, and the fixed insert pin is located above the insert hole; when the bottom end of the fixed insert pin abuts against the top end of the insert screw, the fixed insert pin has a tendency to move downward, thereby positioning the insert screw in the insert hole. By using a fixed insert pin to stably fix the insert screw in the insert hole before closing the mold, it is ensured that the mold will not touch the insert screw and be damaged during closing the mold, thereby improving the service life of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a partial structural schematic diagram of a mold insert fixing mechanism of the utility model when the insert screws are not installed;

[0016] Figure 2 It is a partial cross-sectional structural schematic diagram of a mold insert fixing mechanism of the utility model;

[0017] Figure 3 This utility model Figure 2 A is an enlarged schematic diagram;

[0018] Figure 4 It is a top view schematic diagram of the top end of the fixed setting pin of the utility model;

[0019] Markings in the figure: 1. base; 2. first mold; 3. second mold; 4. cavity; 5. insert seat; 6. insert screw; 7. insert hole; 8. ejector pin; 9. ejector seat; 10. mounting hole; 11. fixing pin; 12. mounting groove; 13. mounting block; 14. through hole; 15. protrusion; 16. spring; 17. adjustment kit; 18. support frame; 19. cross bar; 20. groove; 21. chamfered portion. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the implementation mode of the utility model clearer, the technical scheme in the implementation mode of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation mode of the utility model. Obviously, the described implementation mode is a part of the implementation mode of the utility model, not all of the implementation modes. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the implementation mode of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected implementation mode of the utility model. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] Depend on Figures 1 to 4 As shown, an embodiment of the utility model provides a mold insert fixing mechanism, including a base 1 and a first mold 2 and a second mold 3 symmetrically arranged above the base 1, and a cavity 4 is formed between the first mold 2 and the second mold 3; an insert seat 5 is arranged on the base 1, and an insert hole 7 suitable for placing an insert screw 6 is arranged on the insert seat 5, and a ejector pin 8 is arranged in the insert; a top seat 9 is arranged on the first mold 2 and the second mold 3, and a mounting hole 10 connected to the cavity 4 is arranged in the top seat 9, and a fixed insert pin 11 is slidably connected in the mounting hole 10, and the fixed insert pin 11 is located above the insert hole 7; when the bottom end of the fixed insert pin 11 is against the top end of the insert screw 6, the fixed insert pin 11 has a tendency to move downward, thereby positioning the insert screw 6 in the insert hole 7. Among them, in this embodiment, the first mold 2 and the second mold 3 are two molds symmetrically arranged on the left and right, which are driven to open and close the mold by the driving structures on both sides, and a complete cavity 4 is formed together when the mold is closed. At the same time, the insert seat 5 is located at the bottom end of the cavity 4, and the insert hole 7 is connected to the cavity 4. During production, an insert screw 6 is placed in the insert hole 7, and its upper end is located in the cavity 4 to form a finished product together. At this time, the ejector pin 8 is located at the lower end of the insert screw 6 to serve as a support, and can be ejected when the mold is opened. In this embodiment, it mainly plays a supporting role, and the driving structure of the ejector pin 8 will not be described in detail.

[0022] Preferably, in this embodiment, a mounting groove 12 is coaxially arranged at the upper end of the mounting hole 10, a mounting block 13 is arranged in the mounting groove 12, and a through hole 14 is penetrated in the mounting block 13; a protrusion 15 is radially protruded on the upper circumference of the fixed insert pin 11, and a spring 16 is arranged between the protrusion 15 and the mounting block 13. By arranging the spring 16, when the bottom end of the fixed insert pin 11 abuts against the top end of the insert screw 6, the spring 16 is compressed to provide a downward force to the fixed insert pin 11, so that the insert screw 6 can be stably fixed in the correct position in the insert hole 7, avoiding damage to the mold when the mold is closed.

[0023] Preferably, an adjustment kit 17 is rotatably connected to the through hole 14, and the lower end of the adjustment kit 17 is against the spring 16, wherein the adjustment kit 17 is threadedly connected to the mounting block 13 and can be adjusted up and down by rotation, so that the spring 16 is further compressed when adjusted downward, which can strengthen the force of the fixing pin 11 on the insert screw 6 to ensure that the insert screw 6 is fixed in the correct position.

[0024] Preferably, two support frames 18 are symmetrically arranged at the upper end of the mounting block 13, and the support frames 18 are integrally arranged with the mounting block 13, and a groove 20 is arranged at the top of the support frame 18; the upper end of the fixed insert pin 11 is provided with a cross bar 19 protruding to both sides. Among them, the mounting block 13 and the mounting groove 12 are threadedly connected, and the installation and disassembly can be facilitated by rotating the support frame 18. Furthermore, the fixed insert pin 11 is pulled outward by the cross bar 19 to make it leave the position of the cavity 4, which can facilitate the installation of the insert screw 6 and use during demolding. After pulling it out, the fixed insert pin 11 can be rotated to place the cross bar 19 in the groove 20 for fixing.

[0025] Preferably, the cross section of the support frame 18 is arranged in an arc shape, so that it can be easily rotated and the adjustment kit 17 can be easily adjusted.

[0026] Preferably, the fixing pin 11 is eccentrically arranged with respect to the insert hole 7. According to product requirements, the eccentric design can reduce the projection area of ​​the fixing pin 11 on the insert screw 6, so as to reduce the free space on the upper end of the insert screw 6 due to the fixing pin 11 after injection molding. However, it should be noted that the fixing pin 11 still needs to fully abut against the top of the insert screw 6 to ensure stable fixation.

[0027] Preferably, the bottom end of the fixed inlay pin 11 is provided with a chamfered portion 21. This can reduce the free space generated by the fixed inlay pin 11 during injection molding, and can reduce the impact generated when the fixed inlay pin 11 leaves the finished product, thereby ensuring the integrity of the finished product.

[0028] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mold insert fixing mechanism, characterized in that: It includes a base and a first mold and a second mold symmetrically arranged above the base, wherein a cavity is formed between the first mold and the second mold; an insert seat is arranged on the base, and an insert hole suitable for placing an insert screw is arranged on the insert seat, and a ejector pin is arranged in the insert; a top seat is arranged on the first mold and the second mold, and a mounting hole connected to the cavity is arranged in the top seat, and a fixed insert pin is slidably connected in the mounting hole, and the fixed insert pin is located above the insert hole; when the bottom end of the fixed insert pin is against the top end of the insert screw, the fixed insert pin has a tendency to move downward, thereby positioning the insert screw in the insert hole.

2. A mold insert fixing mechanism according to claim 1, characterized in that A mounting groove is coaxially arranged at the upper end of the mounting hole, a mounting block is arranged in the mounting groove, and a through hole is penetrated by the mounting block; a protrusion is radially protruded on the circumference of the fixed inlay pin, and a spring is arranged between the protrusion and the mounting block.

3. A mold insert fixing mechanism according to claim 2, characterized in that An adjustment kit is rotatably connected to the through hole, and the lower end of the adjustment kit is against the spring.

4. A mold insert fixing mechanism according to claim 2, characterized in that Two support frames are symmetrically arranged at the upper end of the mounting block, and grooves are arranged at the top ends of the support frames; and cross bars are arranged on both sides of the upper end of the fixed inlay pin.

5. A mold insert fixing mechanism according to claim 4, characterized in that , the cross section of the support frame is arranged in an arc shape.

6. A mold insert fixing mechanism according to claim 1, characterized in that The fixed inlay pin and the inlay hole are eccentrically arranged.

7. A mold insert fixing mechanism according to claim 1, characterized in that The bottom end of the fixed pin is provided with a chamfered portion.

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