Front quick release structure of insert

Abstract

The utility model discloses a front quick release structure of an insert. The front quick release structure comprises a limiting assembly, a telescopic reset rod and the insert inserted into a mold core of an injection mold, the insert is limited by the limiting assembly so as to ensure that the insert is fixed in the mold core; the reset rod is assembled on the injection mold in a telescopic manner and is provided with an ejection inclined surface facing the insert, when the insert is disassembled, the limitation of the limiting assembly on the insert is relieved, and the reset rod extends towards the insert, so that the ejection inclined surface is in sliding butt joint with the insert; compared with a dismounting mode of the insert in the prior art, the injection mold has the advantages that the whole injection mold does not need to be dismounted from an injection molding machine table, and the insert can be prevented from being broken, so that the dismounting and mounting are simple and convenient, and the production efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing technology, and in particular to a quick-release structure for the front of an insert. Background Technology

[0002] Inserts are mold accessories used to be embedded in the core of injection molds. They are usually installed and removed by screws. Since the front of the mold needs to fit the workpiece, the insert is inserted from the back of the mold and exposed from the front to avoid the screw holes affecting the workpiece molding. The screws are installed from the back of the mold to ensure that the insert and the mold are connected as one.

[0003] However, since the injection molding machine is connected to the back of the mold, the fixing screws of the insert are blocked by the injection molding machine after the mold is installed on the injection molding machine. If the insert needs to be replaced, there is not enough space to remove the insert from the front. The entire mold must be removed from the injection molding machine first, and then the insert can be taken out from the back of the mold. This operation is cumbersome. Moreover, since the insert and the mold are tightly fitted, even after loosening the screws, the worker still needs to use force to pull the insert out of the mold. Sometimes, the protruding insert needs to be knocked off the front of the mold to make it detach, which makes the insert easy to break. Such disassembly and assembly is troublesome, time-consuming and labor-intensive, thus affecting production efficiency. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a quick-release structure for inserts, which can quickly eject the inserts from the cavity side of the injection mold core, thereby achieving quick removal of the inserts.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] This utility model provides a quick-release structure for an insert, including a limiting component, a retractable reset rod, and an insert inserted into the mold core of an injection mold. The insert is limited by the limiting component to ensure that the insert is fixed inside the mold core. The reset rod is retractably mounted on the injection mold and has an ejection ramp facing the insert. When removing the insert, the limiting component is released from the insert, and the reset rod extends towards the insert so that the ejection ramp and the insert slide against each other, thereby ejecting the insert from the cavity side of the injection mold core.

[0007] Furthermore, the reset rod includes a matching push rod assembly and an elastic reset member. The push rod assembly is movably inserted into the side wall of the injection mold, and the end of the push rod assembly facing away from the side wall of the injection mold has the ejection slope. The elastic reset member is provided between the push rod assembly and the injection mold.

[0008] Furthermore, the push rod assembly includes a push rod and a push block, one end of the push rod has the ejection ramp, and the other end of the push rod opposite to the ejection ramp is fixedly fitted with the push block.

[0009] Furthermore, the elastic reset element is a spring, which is assembled between the push block and the injection mold.

[0010] Furthermore, the limiting assembly includes a detachable limiting rod and a stop that are mounted on the injection mold. One end of the limiting rod has a first limiting member that cooperates with the insert for fixation. The insert has a second limiting member that cooperates with the limiting rod. The first limiting member is detachably inserted into the mold core and cooperates with the second limiting member. The stop restricts the other end of the limiting rod to limit the movement of the insert within the mold core.

[0011] Furthermore, the end of the limiting rod facing the insert has a protrusion, and the insert has a limiting groove that matches the protrusion. The protrusion is detachably inserted into the limiting groove. The protrusion is the first limiting member, and the limiting groove is the second limiting member.

[0012] Furthermore, the limiting rod and the stop are respectively equipped with limiting screws, and the limiting rod and the stop are respectively detachably fixed to the injection mold by the limiting screws.

[0013] Furthermore, the insert is magnetic and equipped with a magnetic removal component; when the insert is removed, the magnetic removal component magnetically attracts the insert to facilitate removal of the insert from the mold core.

[0014] The technical solution provided by this utility model has the following beneficial effects:

[0015] When it is necessary to disassemble the insert, first release the restriction of the limiting component on the insert, and then extend the reset rod toward the insert to drive the insert to form an abutment and slide on the ejection ramp. During the sliding process of the insert on the ejection ramp, the insert rises toward the cavity side of the injection mold until the insert is ejected from the cavity side of the injection mold core. Compared with the disassembly method of the insert in the prior art, this utility model does not require removing the entire injection mold from the injection molding machine and can also avoid the breakage of the insert. Thus, disassembly and assembly are simple and convenient, thereby effectively improving production efficiency. Attached Figure Description

[0016] Figure 1 The diagram shown is a structural schematic of the quick-release structure on the front of the insert in the embodiment.

[0017] Figure 2 The diagram shown is an exploded view of the quick-release structure on the front of the insert in the embodiment. Detailed Implementation

[0018] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0019] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0020] Reference Figure 1 and Figure 2 As shown, this embodiment provides a front quick-release structure for an insert (hereinafter referred to as the front quick-release structure) for quickly removing the insert from the injection mold. The front quick-release structure includes a limiting component 2, a retractable reset rod 1, and an insert 3 inserted into the mold core of the injection mold. The insert 3 is limited by the limiting component 2 to ensure that the insert 3 is fixed in the mold core. The reset rod 1 is retractably mounted on the injection mold and has an ejection ramp 111 facing the insert 3. When removing the insert 3, the limiting component 2 is released from the restriction of the insert 3, and the reset rod 1 extends towards the insert 3 so that the ejection ramp 111 and the insert 3 form a sliding contact, thereby ejecting the insert 3 from the cavity side or the front side of the injection mold core. The cavity side of the injection mold is the front side of the injection mold.

[0021] In this embodiment, the insert 3 is placed in a slot on the cavity wall of the mold core when it is in the injection mold.

[0022] The limiting component 2 includes a detachable limiting rod 21 and a stop 22 that are mounted on the injection mold. One end of the limiting rod 21 has a first limiting member that is fixed to the insert 3. The insert 3 has a second limiting member that is fitted to the limiting rod 21. The first limiting member is detachably inserted into the mold core and fits with the second limiting member. The stop 22 restricts the other end of the limiting rod 21 to limit the movement of the insert 3 within the mold core. Specifically, the end of the limiting rod 21 facing the insert 3 has a protrusion 211. The insert 3 has a limiting groove 31 that fits the protrusion 211. The protrusion 211 is detachably inserted into the limiting groove 31. The protrusion 211 is the first limiting member, and the limiting groove 31 is the second limiting member.

[0023] When insert 3 needs to be installed, limit rod 21 and stop block 22 are respectively equipped with limit screws 23. Limit rod 21 and stop block 22 are detachably fixed to injection mold by limit screws 23. First, unscrew the two limit screws 23 in sequence to remove stop block 22. Then pull out limit rod 21 to ensure that the protrusion 211 of limit rod 21 does not interfere with the next step of insert 3 installation. Then, insert 3 is installed into the core of the injection mold. At this time, reset rod 1 is in the retracted state, and the ejector ramp 111 of reset rod 1 will not interfere with the installation of insert 3. Then, the protrusion 211 of limit rod 21 is inserted into the core and locked in the limit groove 31 of insert 3 to fix them together. Then, limit rod 21 is fixed on the injection mold by limit screw 23 corresponding to limit rod 21. Finally, stop block 22 is also fixed on the injection mold by limit screw 23 corresponding to stop block 22 to complete the installation of insert 3.

[0024] When it is necessary to disassemble the insert 3, first release the restriction of the limiting component 2 on the insert 3, that is, first remove the stop block 22 and the limiting rod 21 in sequence, and then extend the reset rod 1 toward the insert 3 to drive the insert 3 to form an abutment on the ejection ramp 111 and slide upward. During the sliding process of the insert 3 on the ejection ramp 111, the insert 3 rises toward the cavity side of the injection mold until the insert 3 is ejected from the cavity side of the injection mold core. Compared with the disassembly method of the insert 3 in the prior art, the front quick-release structure of this embodiment does not require the entire injection mold to be removed from the injection molding machine, and can also avoid the breakage of the insert 3. Thus, the disassembly and assembly are simple and convenient, thereby effectively improving production efficiency.

[0025] Of course, in other embodiments, the stop block 22 may not be necessary, and only the limiting screw 23 is needed to fix the limiting rod 21.

[0026] In another preferred embodiment, such as Figure 2 As shown, the reset rod 1 includes a matching push rod assembly and an elastic reset member. The push rod assembly is movably inserted into the side wall of the injection mold. The end of the push rod assembly away from the side wall of the injection mold has an ejection slope 111. An elastic reset member is provided between the push rod assembly and the injection mold.

[0027] In specific implementation, the push rod assembly includes a push rod 11 and a push block 12. One end of the push rod 11 has an ejection ramp 111, and the other end of the push rod 11 away from the ejection ramp 111 is fixedly equipped with the push block 12. The elastic reset component is a spring 13, which is assembled between the push block 12 and the injection mold to ensure that the push block 12 and the push rod 11 can retract and reset without external force.

[0028] When it is necessary to quickly remove the insert 3, after the limiting relationship between the limiting component 2 and the insert 3 is released, it is only necessary to push the push block 12 on the side of the injection mold to drive the push rod 11 to extend inward, so as to force the insert 3 to slide upward on the ejection ramp 111 of the push rod 11, so as to slowly eject the insert 3.

[0029] In another preferred embodiment, the insert 3 is magnetic and is provided with, for example, Figure 2 The magnetic extraction component 4 shown above forms a magnetic attraction to the insert 3 when the insert 3 is removed, so as to facilitate the removal of the insert 3 from the mold core.

[0030] In this specific embodiment, the magnetic extraction component 4 is a magnet equipped with a pull ring. After the push rod 11 pushes the insert 3 upward a certain distance by the push surface 111, the magnetic insert 3 can be pulled out by the magnet, making it easier to remove the insert 3 from the mold core.

[0031] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A quick-release structure on the front of an insert, characterized in that: Includes a limiting component, a retractable reset rod, and an insert inserted into the core of the injection mold; The insert is restricted by the limiting component to ensure that the insert is fixed inside the mold core; The reset rod is telescopically mounted on the injection mold and has an ejection ramp facing the insert. When the insert is removed, the restriction of the limiting component on the insert is released, and the reset rod extends toward the insert so that the ejection ramp and the insert form a sliding contact, thereby ejecting the insert from the cavity side of the injection mold core.

2. The quick-release structure on the front of the insert according to claim 1, characterized in that: The reset rod includes a matching push rod assembly and an elastic reset member. The push rod assembly is movably inserted into the side wall of the injection mold, and the end of the push rod assembly facing away from the side wall of the injection mold has the ejection slope. The elastic reset member is provided between the push rod assembly and the injection mold.

3. The quick-release structure on the front of the insert according to claim 2, characterized in that: The push rod assembly includes a push rod and a push block. One end of the push rod has the ejection ramp, and the other end of the push rod opposite to the ejection ramp is fixedly fitted with the push block.

4. The quick-release structure on the front of the insert according to claim 3, characterized in that: The elastic reset component is a spring, which is assembled between the push block and the injection mold.

5. The quick-release structure on the front of the insert according to any one of claims 1-4, characterized in that: The limiting assembly includes a detachable limiting rod and a stop that are mounted on the injection mold. One end of the limiting rod has a first limiting member that cooperates with the insert for fixation. The insert has a second limiting member that cooperates with the limiting rod. The first limiting member is detachably inserted into the mold core and cooperates with the second limiting member. The stop restricts the other end of the limiting rod to limit the movement of the insert within the mold core.

6. The quick-release structure on the front of the insert according to claim 5, characterized in that: The limiting rod has a protrusion at one end facing the insert, and the insert has a limiting groove that matches the protrusion. The protrusion is detachably inserted into the limiting groove. The protrusion is the first limiting member, and the limiting groove is the second limiting member.

7. The quick-release structure on the front of the insert according to claim 5, characterized in that: The limiting rod and the stop are respectively equipped with limiting screws, and the limiting rod and the stop are respectively detachably fixed to the injection mold by the limiting screws.

8. The quick-release structure on the front of the insert according to any one of claims 1-4, characterized in that: The insert is magnetic and is equipped with a magnetic removal component; when the insert is removed, the magnetic removal component magnetically attracts the insert to facilitate removal of the insert from the mold core.

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