Motor tooth protection device on hardware for injection mold

Abstract

The utility model discloses a hardware upper motor tooth protection device for injection mold, include: moving die insert, fixed die insert and sliding block, moving die insert sets up on the moving die of injection mold, and fixed die insert sets up on the fixed die of injection mold, and with moving die insert corresponding, the sliding block is slidably arranged on fixed die insert, first slope is provided with on the opposite side of moving die insert with sliding block, the back of sliding block is provided with the second slope corresponding with first slope, the fixed die insert is provided with the slot corresponding with motor tooth on, and the slot is located in the front of the front of sliding block, and the first boss is provided with on one side of motor tooth and is convex, the front of sliding block is provided with the lock tongue pointing to the slot, and the second boss of path way is provided with on the one side of lock tongue and passes first boss top, in the clamping process, sliding block is forced and moves forward, and the clamping of motor tooth is carried out with lock tongue, and the filling of first boss top gap is carried out through the second boss, avoids the problem that the plastic enters the slot and forms the cape.

Description

Technical Field

[0001] This utility model relates to the field of injection molds, and in particular to a motor gear protection device for hardware parts used in injection molds. Background Technology

[0002] To facilitate the power supply and control of the motor, some injection molded parts have embedded circuit hardware, and the hardware is designed with motor teeth for plugging in.

[0003] The motor teeth need to protrude beyond the injection-molded part; therefore, slots need to be designed in the mold for inserting and concealing the motor teeth. Some motor teeth have bosses on their outer surface, resulting in a loose fit between the motor teeth and the slots. During injection molding, plastic enters the slots, forming a fuzz under the bosses, causing circuit failure. This needs to be improved. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a motor tooth protection device for hardware parts used in injection molds to protect the motor teeth and avoid the problem of condensation.

[0005] To solve the above-mentioned technical problems, the present invention provides a motor gear protection device for hardware parts used in injection molds, comprising: a moving mold insert, a fixed mold insert, and a slider. The moving mold insert is disposed on the moving mold of the injection mold, and the fixed mold insert is disposed on the fixed mold of the injection mold and corresponds to the moving mold insert. The slider is slidably disposed on the fixed mold insert. A first inclined surface is provided on the side of the moving mold insert opposite to the slider, and a second inclined surface corresponding to the first inclined surface is provided on the back of the slider. A slot corresponding to the motor gear is provided on the fixed mold insert, and the slot is located in front of the front of the slider. A first boss is provided on one side of the motor gear, and a locking tongue pointing to the slot is provided on the front of the slider. A second boss passing through the top of the first boss is provided on one side of the locking tongue.

[0006] In a preferred embodiment of this utility model, the fixed mold insert is provided with a spring that is connected to the front side of the slider.

[0007] In a preferred embodiment of this utility model, the front side of the slider is provided with a guide groove corresponding to the spring.

[0008] In a preferred embodiment of this utility model, the fixed mold insert is provided with a slide rail or pressure block corresponding to the slider.

[0009] In a preferred embodiment of the present invention, the fixed mold insert is provided with a groove that corresponds to and communicates with the locking tongue and the slot.

[0010] In a preferred embodiment of this invention, the number of slots is at least one.

[0011] The beneficial effects of this utility model are as follows: The motor tooth protection device for hardware parts used in injection molds disclosed in this utility model allows the slider to be forced forward during the mold closing process. The locking tongue is used to clamp the motor teeth, and the gap above the first boss is filled by the second boss, which avoids the problem of plastic entering the slot and forming a burr, ensuring the effectiveness of the circuit and helping to improve the quality of injection molded parts. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0013] Figure 1 This is a schematic diagram of a preferred embodiment of a motor gear protection device for hardware parts used in injection molds according to this utility model;

[0014] Figure 2 yes Figure 1 A schematic diagram of the structure after mold closing;

[0015] Figure 3 yes Figure 2 A schematic diagram of the structure of the slider at another angle. Detailed Implementation

[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] Please see Figures 1-3 The embodiments of this utility model include:

[0018] like Figure 1 The motor gear protection device shown is used to protect the motor gear 6 on the hardware 5 in the injection mold. It includes: a moving mold insert 1, a fixed mold insert 2, and a slider 3. The moving mold insert 1 is disposed on the moving mold of the injection mold, and the fixed mold insert 2 is disposed on the fixed mold of the injection mold and corresponds to the moving mold insert 1. The slider 3 is slidably disposed on the fixed mold insert 2. In this embodiment, the fixed mold insert 2 is provided with a slide rail or pressure block 8 corresponding to the slider 3 to guide the slider 3 and prevent the slider 3 from falling off or deviating.

[0019] A first inclined surface 11 is provided on the side of the moving mold insert 1 opposite to the slider 3, and a second inclined surface 31 corresponding to the first inclined surface 11 is provided on the back of the slider 3. During the mold closing process, the first inclined surface 11 moves down and contacts the second inclined surface 31, such as... Figure 2 As shown, this forces slider 3 to move forward.

[0020] A slot 21 corresponding to the motor tooth 6 is provided on the fixed mold insert 2. The slot 21 is located in front of the front of the slider 3. The motor tooth 6 on the hardware 5 can be inserted into the slot 21 to achieve initial positioning in the mold. A first boss 7 is provided on one side of the motor tooth 6. After the first boss 7 is inserted into the slot 21 along with the motor tooth 6, there is a problem of burrs caused by the injection of glue.

[0021] like Figure 1 and Figure 3 As shown, the front of the slider 3 is provided with a locking tongue 32 pointing to the slot 21. The fixed mold insert 2 is provided with a groove 22 corresponding to the locking tongue 32 and communicating with the slot 21, which guides the locking tongue 32 to move forward, so that the locking tongue 32 can enter the slot 21. After the locking tongue 32 moves forward, it can cooperate with the slot 21 to clamp the motor teeth and improve the positioning accuracy.

[0022] In addition, a second protrusion 33 is provided on one side of the latch 32, which passes through the first protrusion 7 above it, such as... Figure 2 As shown, the front end of the locking tongue has a stepped structure to avoid the motor tooth 6, and extends to the rear side of the motor tooth 6 after mold closing. The second boss 33 is located in the stepped structure, as shown below. Figure 3 As shown, after the mold is closed, it is located above the first boss 7, thus avoiding the problem of plastic entering below the second boss 33 and forming a bulge.

[0023] To achieve the reset of slider 3, a spring 4 connected to the front side of slider 3 is provided on the fixed mold insert 2. After mold opening, slider 3 moves backward and resets under the action of spring 4. In this embodiment, a guide groove 34 corresponding to spring 4 is provided on the front side of slider 3, which improves the positional stability of spring 4.

[0024] The number of slots 21 is at least one. In this application, a design with two slots 21 is adopted, which can protect two motor teeth at the same time, avoid the problem of wind damage, and at the same time avoid the circuit failure of hardware 5.

[0025] In summary, the present invention discloses a motor gear protection device for injection mold hardware, which is installed in the injection mold to protect the motor gear on the hardware, avoid burr problems, maintain the effectiveness of the circuit, and help improve the quality of injection molded parts.

[0026] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A protective device for motor teeth on hardware parts used in injection molds, used for protecting motor teeth on hardware parts in injection molds, characterized in that, include: The injection mold includes a moving mold insert, a fixed mold insert, and a slider. The moving mold insert is disposed on the moving mold of the injection mold, and the fixed mold insert is disposed on the fixed mold of the injection mold and corresponds to the moving mold insert. The slider is slidably disposed on the fixed mold insert. A first inclined surface is provided on the side of the moving mold insert opposite to the slider, and a second inclined surface corresponding to the first inclined surface is provided on the back of the slider. A slot corresponding to a motor tooth is provided on the fixed mold insert, and the slot is located in front of the front of the slider. A first boss is provided on one side of the motor tooth. A locking tongue pointing to the slot is provided on the front of the slider, and a second boss passing above the first boss is provided on one side of the locking tongue.

2. The motor gear protection device for injection mold hardware according to claim 1, characterized in that, The fixed mold insert is provided with a spring that connects to the front side of the slider.

3. The motor gear protection device for injection mold hardware according to claim 2, characterized in that, The front of the slider is provided with a guide groove corresponding to the spring.

4. The motor gear protection device for injection mold hardware according to claim 1, characterized in that, The fixed mold insert is provided with a slide rail or pressure block corresponding to the slider.

5. The motor gear protection device for injection mold hardware according to claim 1, characterized in that, The fixed mold insert is provided with a groove that corresponds to the locking tongue and connects to the slot.

6. The motor gear protection device for injection mold hardware according to claim 1, characterized in that, The number of slots is at least one.

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