Double-sided forming structure of mold

Abstract

The utility model relates to the technical field of automobile accessory manufacturing, in particular to a mold double-face forming structure which comprises a mold plate assembly, the mold plate assembly comprises a fixed mold plate and a movable mold plate, and a special-shaped inclined guide column is installed on the mold plate assembly and assembled on the movable mold plate through a guide column pressing block; the special-shaped sliding block seat is mounted on the fixed mold plate through a sliding block pressing strip; the bottom surface wear-resistant block is mounted on the fixed mold plate; the positioning pin is mounted on the special-shaped sliding block seat; the spring is assembled on the special-shaped sliding block seat; the fixed mold core is fixed on the fixed mold plate; the movable mold core is fixed on the movable mold plate; according to the utility model, the demoulding structure of the inverted slide blocks on the two sides and the end surface of the button rotating cover plate is changed from an inverted fixed mould side slide block to a fixed mould side, and the three special-shaped slide block seats are used for pressing a product in three directions of the two sides and the end surface, so that the product can be fixed on a rotating side; the problems that an existing double-face forming device cannot effectively clamp and fix an ABS material after one-time injection molding of the ABS material, and follow-up secondary injection molding of the TPV material is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts manufacturing, in particular to a double-sided molding structure of a mold. Background Art

[0002] The car button cover is a double-sided injection molded part. The front side of the double-sided plastic part is made of ABS material, and the back ribs are partially secondary molded with TPV material. Due to the limited compatibility between ABS and TPV, when the temperature is relatively high after ABS injection molding, TPV material needs to be injected immediately to meet the requirements.

[0003] The existing double-sided molding device cannot effectively clamp and fix the ABS material after the primary molding by injection molding. After the device is deflected 180 degrees to perform secondary molding of the TPV material, the effect of the secondary molding is affected. Utility Model Content

[0004] The utility model aims to provide a double-sided molding structure of a mold, which is used to solve the problem that the existing double-sided molding device cannot effectively clamp and fix the ABS material after the ABS material is injected once, and the secondary molding effect is affected after the device is deflected 180° for secondary molding of TPV material.

[0005] To achieve the above object, the utility model provides a double-sided molding structure of a mold, including a template assembly, which includes a fixed template and a movable template, the fixed template and the movable template are respectively installed with a fixed mold core and a movable mold core, the movable template is installed with a square iron, a hot runner plate is arranged in the square iron, a bottom wear-resistant block is installed at the bottom of the fixed template, and the template assembly is installed with:

[0006] There are three sets of special-shaped inclined guide pillars, which are assembled on the moving template by corresponding guide pillar pressing blocks.

[0007] The special-shaped slider seat is installed on the fixed template through the slider pressure strip. A positioning pin is slidably installed on the special-shaped slider seat. The spring is assembled on the special-shaped slider seat and locked on the special-shaped slider seat through the pressure block. The slider insert is fixed on the corresponding special-shaped slider seat. The special-shaped slider seat is provided with an insert groove and a fixing screw hole.

[0008] As a further solution of the utility model, the movable template is designed with oblique guide column grooves for installing special-shaped oblique guide columns.

[0009] As a further solution of the utility model, the fixed template is designed with a slider groove;

[0010] As a further solution of the utility model, a tiger mouth groove for sliding installation of the bottom wear-resistant block is provided on the fixed template.

[0011] As a further solution of the utility model, the bottom surface of the special-shaped slider seat is designed with a matching hole for inserting the positioning pin.

[0012] As a further solution of the utility model, a slot hole for installing a spring is designed on the side surface of the special-shaped sliding block seat.

[0013] Compared with the prior art, the special-shaped oblique guide pin adopts a U-shaped hole with a special-shaped cross-section structure. The spring pin at the end of the spring can make the slider of the special-shaped oblique guide pin move forward and guide the mold closing smoothly after the first shot. The mold opening U-shaped hole and the special-shaped oblique guide pin avoidance slider will remain in the mold closing state of the cavity and will not move after the tiger buckle is stuck. After the second shot mold closing, the slider smoothly guides the mold closing, and the spring pin on the side of the mold opening U-shaped hole blocks the slider of the special-shaped oblique guide pin and will retreat out of the inverted position of the product, thereby solving the problem that the existing double-sided molding device cannot effectively clamp and fix the ABS material after the first injection molding, and the secondary molding effect is affected after the device is deflected 180° for the secondary molding of TPV material. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a double-sided molding structure of a mold in the utility model.

[0015] Figure 2 It is a schematic diagram of the installation of the spring and the spring pin in the utility model.

[0016] In the attached figure: 1, fixed mold core; 3, fixed mold plate; 5, special-shaped slider seat; 6, special-shaped inclined guide column; 7, movable mold plate; 8, movable mold core; 10, hot runner plate; 14, square iron; 15, spring; 16, spring pin; 17, wear-resistant block. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0018] like Figure 1 and Figure 2 As shown, in the embodiment of the utility model, a double-sided molding structure of a mold includes a template assembly, which includes a fixed template 3 and a movable template 7, on which a fixed mold core 1 and a movable mold core 8 are respectively installed, and a square iron 14 is installed on the movable template 7, and a hot runner plate 10 is arranged in the square iron 14, and a bottom wear-resistant block 17 is installed at the bottom of the fixed template 3, and the template assembly is installed with:

[0019] The number of the special-shaped inclined guide pillars 6 is three, and the corresponding guide pillar pressing blocks are assembled on the moving template 7.

[0020] The special-shaped slider seat 5 is installed on the fixed mold plate 3 through the slider pressure strip. A positioning pin is slidably installed on the special-shaped slider seat 5. The spring 15 is assembled on the special-shaped slider seat 5 and locked on the special-shaped slider seat 5 through the pressure block. The slider insert is fixed on the corresponding special-shaped slider seat 5. The special-shaped slider seat 5 is provided with an insert groove and a fixing screw hole;

[0021] Furthermore, the movable template 7 is designed with an inclined guide column groove for installing the special-shaped inclined guide column 6, the fixed template 3 is designed with a slider groove, the fixed template 3 is provided with a tiger mouth groove for sliding installation of the bottom wear-resistant block 17, the bottom surface of the special-shaped slider seat 5 is designed with a matching hole for inserting the locating pin, and the side of the special-shaped slider seat 5 is designed with a slot hole for installing the spring 15.

[0022] In this utility model:

[0023] The special-shaped oblique guide pin adopts a U-shaped hole with a special-shaped cross-section structure. The spring pin 16 at the end of the spring 15 can make the slide of the special-shaped oblique guide pin 6 move forward and smoothly guide the mold closing after the first shot mold closing. The U-shaped hole of the mold opening and the slide of the special-shaped oblique guide pin 6 will stay in the mold closing state of the cavity and will not move after the tiger buckle is stuck. After the second shot mold closing, the slide will smoothly guide the mold closing. The spring pin 16 on the side of the U-shaped hole of the mold opening blocks the slide of the special-shaped oblique guide pin 6 and the slide will retreat and escape from the product undercut position.

[0024] The special-shaped oblique guide pillar 6 has different shapes in the first shot and the second shot. The special-shaped oblique guide pillar 6 in the first shot has two parallel planes. The special-shaped oblique guide pillar and the spring needle 16 do not contact the mold opening movement slider without force. The special-shaped oblique guide pillar 6 in the second shot has three planes. The three plane sections are isosceles triangles, which are convenient for the retreat of the hemispherical spring needle 16 and the guiding movement of the oblique guide pillar. The special-shaped slider structure adopts a heterogeneous combination slider to press on the long and wide front sides. The heterogeneous combination slider is clamped with a tiger buckle after hard plastic molding. The heterogeneous combination slider can realize multi-cavity arrangement in the state of the inverted structure of the mold hot runner, thereby solving the problem that the existing double-sided molding device cannot effectively clamp and fix the ABS material after the first injection molding, and the secondary molding effect is affected after the device is deflected 180° for the secondary molding of TPV material.

[0025] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A double-sided molding structure of a mold, characterized in that: It includes a template assembly, which includes a fixed template and a movable template, the fixed template and the movable template are respectively installed with a fixed mold core and a movable mold core, the movable template is installed with a square iron, a hot runner plate is arranged in the square iron, a bottom wear-resistant block is installed at the bottom of the fixed template, and the template assembly is installed with: There are three sets of special-shaped inclined guide pillars, which are assembled on the moving template by corresponding guide pillar pressing blocks. The special-shaped slider seat is installed on the fixed template through the slider pressure strip. A positioning pin is slidably installed on the special-shaped slider seat. The spring is assembled on the special-shaped slider seat and locked on the special-shaped slider seat through the pressure block. The slider insert is fixed on the corresponding special-shaped slider seat. The special-shaped slider seat is provided with an insert groove and a fixing screw hole.

2. A double-sided molding structure of a mold according to claim 1, characterized in that: The movable template is designed with oblique guide column grooves for installing special-shaped oblique guide columns.

3. A double-sided molding structure of a mold according to claim 1, characterized in that: The fixed template is designed with a sliding block groove.

4. A double-sided molding structure of a mold according to claim 3, characterized in that: The fixed template is provided with a tiger mouth groove for sliding installation of the bottom wear-resistant block.

5. The double-sided molding structure of a mold according to claim 1, characterized in that: The bottom surface of the special-shaped sliding block seat is designed with a matching hole for inserting a positioning pin.

6. The double-sided molding structure of a mold according to claim 1, characterized in that: The side surface of the special-shaped sliding block seat is designed with a slot hole for installing a spring.

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