Front quick release structure of insert

Abstract

The invention 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] The invention relates to the technical field of mold manufacturing, in particular to a front quick-release structure of an insert. Background Art

[0002] Generally, inserts are mold accessories used to be embedded in the core of an injection mold. Screw connections are often used to remove and install the inserts. Since the front of the mold needs to fit the workpiece, in order to avoid the screw holes affecting the molding of the workpiece, the inserts will be inserted from the back of the mold and exposed from the front. 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, when the mold is installed on the injection molding machine, the fixing screws of the insert are blocked by the injection molding machine. If the insert needs to be replaced, there will not be enough space to remove the insert from the front. The entire mold can only 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, and because the insert and the mold are tightly matched, even after loosening the screws, the worker still needs to pull the insert out of the mold with force, and even needs to knock the protruding insert on the front of the mold to make it detach, which makes the insert easy to break. This disassembly and assembly is troublesome, time-consuming and labor-intensive, and thus affects production efficiency. Summary of the invention

[0004] Therefore, in order to solve the above problems, the present invention provides a front quick-release structure for an insert, which can quickly eject the insert from the mold core from the cavity side of the injection mold to achieve quick release of the insert.

[0005] To achieve the above purpose, the technical solution provided by the present invention is as follows:

[0006] The present invention provides a front quick-release structure of an insert, comprising a limiting assembly, a retractable reset rod and an insert inserted in a mold core of an injection mold; the insert is limited by the limiting assembly to ensure that the insert is fixed in the mold core; the reset rod is retractably assembled on the injection mold and has an ejection slope facing the insert, when the insert is disassembled, the restriction of the limiting assembly on the insert is released, and the reset rod extends toward the insert, so that the ejection slope forms a sliding abutment with the insert, thereby ejecting the insert from the mold core from the cavity side of the injection mold.

[0007] Furthermore, the reset rod includes a matching push rod assembly and an elastic reset member. The push rod assembly can be 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 arranged 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 slope, and the other end of the push rod away from the ejection slope is fixedly assembled with the push block.

[0009] Furthermore, the elastic return member is a spring, and the spring is assembled between the push block and the injection mold.

[0010] Furthermore, the limiting assembly includes a limiting rod and a stopper detachably mounted on the injection mold, one end of the limiting rod having a first limiting piece fixedly matched with the insert, the insert having a second limiting piece matched with the limiting rod, the first limiting piece being detachably penetrated through the mold core and matched with the second limiting piece, and the stopper limits the other end of the limiting rod to limit the movement of the insert in the mold core.

[0011] Furthermore, the limiting rod has a protrusion at one end facing the insert, the insert has a limiting groove matching the protrusion, and the protrusion can be detachably inserted in 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 stopper are respectively provided with limiting screws, and the limiting rod and the stopper are respectively detachably fixed to the injection mold by the limiting screws.

[0013] Furthermore, the insert is magnetic and is provided with a magnetic removal member; when the insert is removed, the magnetic removal member forms a magnetic attraction setting for the insert, so as to facilitate the removal of the insert from the mold core.

[0014] The technical solution provided by the present invention has the following beneficial effects:

[0015] When it is necessary to remove the insert, first release the restriction of the limit assembly on the insert, and then extend the reset rod toward the insert to drive the insert to form abutment and slide on the ejection slope, and during the sliding process of the insert on the ejection slope, the insert rises toward the cavity side of the injection mold until the insert is ejected from the mold core from the cavity side of the injection mold. Compared with the disassembly method of the insert in the prior art, the present invention does not need to remove the entire injection mold from the injection molding machine, and can also avoid the breakage of the insert. In this way, disassembly and assembly are simple and convenient, thereby effectively improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure shows a schematic structural diagram of the front quick-release structure of the insert in the embodiment;

[0017] Figure 2 Shown is an exploded view of the front quick-release structure of the insert in the embodiment. DETAILED DESCRIPTION

[0018] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which 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 contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures 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 with reference to the accompanying drawings and specific implementation methods.

[0020] Reference Figure 1 and Figure 2 As shown, the present embodiment provides a front quick-release structure of an insert (hereinafter referred to as the front quick-release structure), which is used to quickly remove 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 in 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 assembled on the injection mold and has an ejection slope 111 facing the insert 3. When the insert 3 is removed, the restriction of the limiting component 2 on the insert 3 is released, and the reset rod 1 is extended toward the insert 3, so that the ejection slope 111 forms a sliding abutment with the insert 3, thereby ejecting the insert 3 from the mold core from the cavity side or front side of the injection mold, and the cavity side of the injection mold is the front direction of the injection mold.

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

[0022] The limiting assembly 2 includes a limiting rod 21 and a stopper 22 which are detachably assembled on the injection mold. One end of the limiting rod 21 has a first limiting piece fixed to the insert 3, and the insert 3 has a second limiting piece that cooperates with the limiting rod 21. The first limiting piece is detachably inserted into the mold core and cooperates with the second limiting piece, and the stopper 22 limits the other end of the limiting rod 21 to limit the movement of the insert 3 in the mold core. Specifically, the limiting rod 21 has a protrusion 211 at one end facing the insert 3, and the insert 3 has a limiting groove 31 that cooperates with the protrusion 211. The protrusion 211 is detachably inserted into the limiting groove 31. The protrusion 211 is the first limiting piece, and the limiting groove 31 is the second limiting piece.

[0023] When the insert 3 needs to be installed, the limit rod 21 and the stop block 22 are respectively provided with a limit screw 23, and the limit rod 21 and the stop block 22 are respectively detachably fixed to the injection mold by the limit screw 23, and the two limit screws 23 are first unscrewed in turn to remove the stop block 22, and then the limit rod 21 is pulled out to ensure that the protrusion 211 of the limit rod 21 does not interfere with the next step of installing the insert 3. Then, the insert 3 is installed into the mold core of the injection mold. At this time, the reset rod 1 is in a retracted state, and the ejection slope 111 of the reset rod 1 will not interfere with the installation of the insert 3. Then, the protrusion 211 of the limit rod 21 is inserted into the mold core and clamped in the limit groove 31 of the insert 3 to achieve mutual fixation. Then, the limit rod 21 is fixed to the injection mold by the limit screw 23 corresponding to the limit rod 21, and finally, the stop block 22 is also fixed to the injection mold by the limit screw 23 corresponding to the stop block 22 to complete the installation of the insert 3.

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

[0025] Of course, in other embodiments, the stopper 22 may not be required, and only the limit screw 23 is required to fix the limit rod 21 .

[0026] In another preferred embodiment, Figure 2 As shown, the reset rod 1 includes a matching push rod assembly and an elastic reset member. The push rod assembly can be movably inserted into the side wall of the injection mold. The end of the push rod assembly facing away from the side wall of the injection mold has an ejection slope 111, and an elastic reset member is arranged 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 slope 111, and the other end of the push rod 11 away from the ejection slope 111 is fixedly assembled with the push block 12, and the elastic reset member 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 be retracted and reset without external force.

[0028] When it is necessary to quickly remove the insert 3, after the restricting relationship between the limit assembly 2 and the insert 3 is released, it is only necessary to push the push block 12 laterally 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 slope 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 Figure 2 The magnetic removal member 4 shown forms a magnetic attraction setting on 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 removal member 4 is a magnet equipped with a pull ring. After the ejection slope 111 of the push rod 11 pushes the insert 3 upward for a certain distance, the magnetic insert 3 can be sucked 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 the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A front quick-release structure for an insert, characterized in that: It includes a limit assembly, a retractable reset rod, and an insert inserted into a mold core of an injection mold; The insert is limited by the limiting assembly to ensure that the insert is fixed in the mold core; The reset rod is telescopically assembled on the injection mold and has an ejection slope facing the insert. When the insert is removed, the restriction of the limit assembly on the insert is released, and the reset rod extends toward the insert so that the ejection slope forms a sliding abutment with the insert, thereby ejecting the insert from the mold core from the cavity side of the injection mold.

2. The front quick-release structure 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 can be movably inserted into the side wall of the injection mold, and one 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 arranged between the push rod assembly and the injection mold.

3. The front quick-release structure of the insert according to claim 2, characterized in that: The push rod assembly comprises a push rod and a push block. One end of the push rod is provided with the ejection inclined surface, and the other end of the push rod away from the ejection inclined surface is fixedly assembled with the push block.

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

5. The front quick-release structure of the insert according to any one of claims 1 to 4, characterized in that: The limiting assembly includes a limiting rod and a stopper detachably mounted on the injection mold, one end of the limiting rod has a first limiting piece fixedly matched with the insert, the insert has a second limiting piece matched with the limiting rod, the first limiting piece is detachably penetrated through the mold core and matched with the second limiting piece, and the stopper limits the other end of the limiting rod to limit the movement of the insert in the mold core.

6. The front quick-release structure 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 matching the protrusion, and the protrusion can be detachably inserted in the limiting groove; the protrusion is the first limiting member, and the limiting groove is the second limiting member.

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

8. The front quick-release structure of the insert according to any one of claims 1 to 4, characterized in that: The insert is magnetic and is provided with a magnetic removal piece. When the insert is removed, the magnetic removal piece forms a magnetic attraction arrangement on the insert, so as to facilitate the removal of the insert from the mold core.

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