Insert injection mold

Abstract

The insert injection mold comprises a front mold body, a rear mold body, a sliding block and an insert mechanism, the sliding block is connected to the top of the rear mold body, and a cavity is formed in the center of the sliding block; the insert mechanism comprises a first insert, a second insert, an insert, an elastic needle and a baffle, the second insert is vertically connected with the sliding block in a sliding mode, a horizontal channel is formed in the second insert, the baffle is fixed to one side of the second insert, the elastic needle is arranged in the horizontal channel, the first insert is installed on the other side of the second insert, and the first insert is provided with a horizontal protruding column; the horizontal convex column is sleeved with the insert, the horizontal convex column extends into the horizontal channel and abuts against one end of the vibrating needle, the other end of the vibrating needle penetrates through the baffle and then extends into the cavity, a first grub screw abutting against the horizontal convex column is arranged in the second insert, the bottom of the front mold is fixedly connected with a shovel base, and the shovel base can be inserted into the cavity and used for blocking the vibrating needle. According to the insert injection mold, the first insert and the insert can be kept still during mold opening, and a product is prevented from being strained.

Description

Technical Field

[0001] The invention relates to an insert injection mold. Background Art

[0002] In the production process of plastic parts, for the needs of installation and connection, some metal parts or parts made of other materials are often placed in the plastic parts to increase strength, improve mechanical properties such as wear resistance, etc. These parts are collectively referred to as inserts in plastic products. In the actual production process, some inserts need to be installed on the slider. During the mold closing process, the slider slides and drives the insert into the cavity. The traditional practice is to set an insert at a certain position on the slider, and then put the insert on the insert. However, the problem with this traditional slider and insert mechanism during use is that when the injection mold is opened, the insert and the insert will retreat with the slider and pull the product, resulting in affecting the product quality. Therefore, it is necessary to design an insert injection mold that can solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide an insert injection mold, which has a reasonable structure and can keep the first insert and the insert immobile during the mold opening process, prevent the product from being pulled, and ensure the shape and quality of the product.

[0004] To achieve the above object, the technical solution of the present invention is to design an insert injection mold, comprising a front mold, a rear mold and a slider, wherein the front mold is arranged above the rear mold, and a front mold core is arranged at the bottom of the front mold, and a rear mold core is arranged at the top of the rear mold, and the slider is horizontally slidably connected to the top of the rear mold, a vertical slide groove is arranged on the side of the slider facing the rear mold core, and a cavity connected to the vertical slide groove is arranged at the center of the slider; the insert injection mold also includes an insert mechanism, The insert mechanism includes a first insert, a second insert, an insert, a spring pin and a baffle, the second insert is located between the rear model core and the slider, and the second insert is slidably connected to the vertical slide groove, the second insert is provided with a mounting groove on the side facing the rear model core, and the interior of the second insert is provided with a horizontal channel connected to the mounting groove, the baffle is fixedly connected to the side of the second insert facing the slider, the spring pin is arranged in the horizontal channel, the first insert is arranged in the mounting groove, and the first insert is provided with a horizontal boss on the side facing away from the rear model core, the insert is sleeved on the horizontal boss, the horizontal boss extends into the horizontal channel and abuts against one end of the spring pin, the other end of the spring pin passes through the baffle and extends into the cavity of the slider, a vertical screw hole connected to the horizontal channel is provided on the top of the second insert, a first headless screw is connected in the vertical screw hole, the first headless screw abuts against the horizontal boss, and a shovel base is fixedly connected to the bottom of the front mold, and the shovel base can be inserted into the cavity of the slider for blocking the spring pin.

[0005] Preferably, a horizontal screw hole is provided in the sliding block, a second headless screw is connected in the horizontal screw hole, and the second headless screw abuts against the second insert.

[0006] Preferably, the elastic pin comprises an elastic pin body and a spring, the elastic pin body is provided with a radial convex ring, the spring is sleeved on the elastic pin body, and the spring is fixedly connected to the radial convex ring.

[0007] Preferably, the insert injection mold further comprises an ejection mechanism, and the ejection mechanism comprises a first ejector pin and a second ejector pin, wherein the first ejector pin is used for ejecting the product, and the second ejector pin is used for ejecting the second insert.

[0008] The advantages and beneficial effects of the present invention are: providing an insert injection mold with a reasonable structure, which can keep the insert stationary during the mold opening process, prevent the first insert and the insert from moving with the slider and damaging the product, and ensure the shape and quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the mold clamping state of the present invention.

[0010] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0011] Figure 3 It is a schematic diagram of the mold opening state of the present invention.

[0012] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0013] Figure 5 It is a schematic diagram of the disassembled state of the insert mechanism in the present invention.

[0014] Figure 6 It is a schematic diagram of the assembly state of the insert mechanism in the present invention.

[0015] Figure 7 It is a schematic diagram of a slider in the present invention.

[0016] Figure 8 It is a schematic diagram of the assembly state of the insert mechanism and the slider in the present invention. DETAILED DESCRIPTION

[0017] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0018] The technical solution specifically implemented in the present invention is: like Figures 1 to 8As shown, an insert injection mold comprises a front mold 1, a rear mold 2 and a slider 3, wherein the front mold 1 is arranged above the rear mold 2, and a front mold core 4 is arranged at the bottom of the front mold 1, and a rear mold core 5 is arranged at the top of the rear mold 2, and the slider 3 is horizontally slidably connected to the top of the rear mold 2, and a vertical slide groove 6 is arranged on the side of the slider 3 facing the rear mold core 2, and a cavity 7 connected to the vertical slide groove 6 is arranged at the center of the slider 3; the insert injection mold also includes an insert mechanism, The insert mechanism includes a first insert 8, a second insert 9, an insert 10, a spring pin and a baffle 11. The second insert 9 is located between the rear model core 2 and the slider 3, and the second insert 9 is slidably connected to the vertical slide groove 6. The second insert 9 is provided with a mounting groove on the side facing the rear model core, and a horizontal channel 12 connected to the mounting groove is provided inside the second insert 9. The baffle 11 is fixedly connected to the side of the second insert 9 facing the slider 3, the spring pin is arranged in the horizontal channel 12, the first insert 8 is arranged in the mounting groove, and the first insert 8 is provided with a horizontal groove on the side facing away from the rear model core 5. The boss 13, the insert 10 is mounted on the horizontal boss 13, the horizontal boss 13 extends into the horizontal channel 12 and abuts against one end of the elastic pin, the other end of the elastic pin passes through the baffle 11 and extends into the cavity 7 of the slider 3, the top of the second insert 9 is provided with a vertical screw hole 14 connected to the horizontal channel 12, the vertical screw hole 14 is connected with a first headless screw 15, the first headless screw 15 abuts against the horizontal boss 13, the bottom of the front mold 1 is fixedly connected with a shovel base 16, the shovel base 16 can be inserted into the cavity 7 of the slider 3, and is used to block the elastic pin.

[0019] Furthermore, a horizontal screw hole 17 is provided in the sliding block 3 , and a second headless screw 18 is connected to the horizontal screw hole 17 , and the second headless screw 18 abuts against the second insert 9 .

[0020] Furthermore, the elastic pin includes an elastic pin body 19 and a spring 20 . The elastic pin body 19 is provided with a radial convex ring 21 . The spring 20 is sleeved on the elastic pin body 19 , and the spring 20 is fixedly connected to the radial convex ring 21 .

[0021] Furthermore, the insert injection mold further comprises an ejection mechanism, and the ejection mechanism comprises a first ejector pin 22 and a second ejector pin 23 , wherein the first ejector pin 22 is used for ejecting the product 24 , and the second ejector pin 23 is used for ejecting the second insert 9 .

[0022] The working principle of an insert injection mold of the present invention is: Before injection molding, the insert 10 is mounted on the outside of the horizontal boss 13 of the first insert 8, and then the first insert 8 and the insert 10 are installed in the installation groove of the second insert 9 together, and the horizontal boss 13 is extended into the horizontal channel 12 and then abutted against the elastic needle body 19. The elastic needle body 19 moves a set distance under the push of the horizontal boss 13, and the elastic needle body 19 will stretch the spring 20 through the radial convex ring 21. After completion, the first headless screw 15 is screwed to make the first headless screw 15 abut against the horizontal boss 13, thereby fixing the first insert 8 and the second insert 9, thereby completing the assembly of the insert mechanism; then the second insert 9 is connected to the vertical slide groove 6 of the slider 3, and then the second headless screw 18 is screwed to make it abut against the second insert 9, thereby fixing the second insert 9 and the slider 3, thereby completing the assembly of the insert mechanism and the slider 3; then the mold starts to close the mold for injection molding, and after the injection molding is completed, the mold starts to open the mold. , the front mold 1 drives the shovel base 16 to move upward, and the slider 3 drives the second insert 9 to move in the direction away from the rear mold core 5. While the shovel base 16 moves upward, it can prevent the elastic needle body 19 from moving with the second insert 9, so that the elastic needle body 19 supports the first insert 8, and then the first insert 8 and the insert sleeved on the first insert 8 are fixed on the rear mold side and remain motionless. When the slider 3 moves to the specified position, the first insert 8 overcomes the friction between the first headless screw 15 and the insert 10 completely separates from the second insert 9, and the first insert 8 and the insert 10 remain in the product 24; then the ejection mechanism is activated, the product 24 is ejected by the first ejector pin 22, and the second insert 9 is ejected by the second ejector pin 23, so that the second insert 9 overcomes the friction between the second headless screw 18 and separates from the slider 3, and finally the first insert 8 inside the product 24 is manually disassembled and removed to obtain the final product.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An insert injection mold, comprising a front mold, a rear mold and a slider, wherein the front mold is arranged above the rear mold, and a front mold core is arranged at the bottom of the front mold, and a rear mold core is arranged at the top of the rear mold, and the slider is horizontally slidably connected to the top of the rear mold, characterized in that: A vertical slide groove is provided on the side of the slider facing the rear mold core, and a cavity connected to the vertical slide groove is provided at the center of the slider; the insert injection mold also includes an insert mechanism, The insert mechanism includes a first insert, a second insert, an insert, a spring pin and a baffle, the second insert is located between the rear model core and the slider, and the second insert is slidably connected to the vertical slide groove, the second insert is provided with a mounting groove on the side facing the rear model core, and the interior of the second insert is provided with a horizontal channel connected to the mounting groove, the baffle is fixedly connected to the side of the second insert facing the slider, the spring pin is arranged in the horizontal channel, the first insert is arranged in the mounting groove, and the first insert is provided with a horizontal boss on the side facing away from the rear model core, the insert is sleeved on the horizontal boss, the horizontal boss extends into the horizontal channel and abuts against one end of the spring pin, the other end of the spring pin passes through the baffle and extends into the cavity of the slider, a vertical screw hole connected to the horizontal channel is provided on the top of the second insert, a first headless screw is connected in the vertical screw hole, the first headless screw abuts against the horizontal boss, and a shovel base is fixedly connected to the bottom of the front mold, and the shovel base can be inserted into the cavity of the slider for blocking the spring pin.

2. The insert injection mold according to claim 1, characterized in that: The sliding block is provided with a horizontal screw hole, the horizontal screw hole is connected with a second headless screw, and the second headless screw abuts against the second insert.

3. The insert injection mold according to claim 1, characterized in that: The elastic needle comprises an elastic needle body and a spring. The elastic needle body is provided with a radial convex ring. The spring is sleeved on the elastic needle body, and the spring is fixedly connected to the radial convex ring.

4. The insert injection mold according to claim 1, characterized in that: The insert injection mold further includes an ejection mechanism, which includes a first ejector pin and a second ejector pin. The first ejector pin is used to eject the product, and the second ejector pin is used to eject the second insert.

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