CN201784137U - injection mold - Google Patents

Abstract

The utility model discloses an injection mold. The injection mold comprises a female mold, a male mold arranged corresponding to the female mold and at least two pushing mechanisms; the male die comprises a male die plate, an ejector plate corresponding to the male die plate and a core arranged on the male die plate, and an inclined hole is concavely arranged on the core; one end of the push-out mechanism is fixed on the ejector plate and comprises an inclined ejector rod, one end of the inclined ejector rod is convexly provided with a hook part towards one side, the inclined ejector rod is slidably inserted into an inclined hole of the mold core and extends out of the mold core, and the hook part is matched with the end face of the mold core to form a cavity for forming the barb of the molded product. The utility model discloses injection mold is equipped with ejecting mechanism on through the terrace die, and then uses oblique ejector pin ejecting simultaneously on horizontal direction and vertical direction when having the barb on the product inner wall to make the smooth drawing of patterns of product, with improvement production efficiency.

Description

injection mold

technical field

The utility model relates to a mold, in particular to an injection mold.

Background technique

Please refer to Fig. 4, existing injection mold 80 comprises a punch 81 and a die 82, and punch 81 comprises a punch fixing plate 811, a convex template 812, a thimble plate 813, a thimble fixing plate 814, several The thimble 815 and a core 816 mounted on the convex template 812 . The thimble 815 is installed on the thimble plate 813 , the thimble fixing plate 814 fixes one end of the thimble 815 , and the other end of the thimble 815 is inserted into the core 816 .

However, when there are barbs on the inner wall of the cylindrical product, the above-mentioned injection mold 80 will not be able to demould the product with a conventional straight thimble, and it is often necessary to manually demould the product, which is not conducive to improving production efficiency.

Utility model content

The purpose of the utility model is to provide an injection mold which can improve production efficiency.

In order to achieve the above object, the injection mold provided by the utility model includes a die, a punch corresponding to the die and at least two push-out mechanisms; the punch includes a convex template, a ejector plate corresponding to the convex template and A core installed on the convex formwork, the core is provided with an inclined hole; one end of the push-out mechanism is fixed on the ejector plate, the push-out mechanism includes an inclined ejector rod, and one end of the inclined ejector rod is provided with a hook protruding to one side, The inclined ejector rod is slidably inserted into the oblique hole of the core and protrudes from the core, and the hook portion cooperates with the end face of the core to form a barbed cavity of a molded product.

As mentioned above, the injection mold of the utility model is equipped with a push-out mechanism on the punch, and then when the inner wall of the product has a barb, the inclined ejector rod is used to eject it in the horizontal direction and the vertical direction at the same time, so that the product can be demoulded smoothly. Increase productivity.

As a further improvement, a receiving groove and two receiving holes connected with the receiving groove are recessed on the core, and the receiving holes are connected with the inclined holes; the inclined ejector rod can be movably inserted in the receiving groove, In the accommodation hole and the inclined hole.

The push-out mechanism includes a straight ejector rod, one end of which is movably connected to the inclined ejector rod, and the other end is fixed on the ejector plate.

The straight ejector rod has a base column, and a T-shaped connecting block protrudes from one end of the base column; one end of the inclined ejector rod is provided with a T-shaped connecting groove, and the connecting block is slidably inserted into the connecting groove.

The punch includes a punch fixing plate, a thimble fixing plate and several thimbles; the punch fixing plate is provided with two through holes, the thimble plate is provided with two holding holes, and the thimble fixing plate is provided with two connection holes, The connection hole, the holding hole are in communication with the through hole.

A spacer is accommodated in the holding hole, and the spacer is connected with one end of the straight ejector rod.

A fastening screw is respectively housed in the connecting holes of the thimble fixing plate, and the fastening screw fixes the straight ejector rod, the spacer and the thimble fixing plate of the pushing mechanism together.

Description of drawings

Fig. 1 is the cross-sectional view after the utility model injection mold clamping;

Fig. 2 is the cross-sectional view after the utility model injection mold die opening;

Fig. 3 is a three-dimensional exploded view of the push-out mechanism of the injection mold shown in Fig. 2;

Fig. 4 is a cross-sectional view of the existing injection mold after mold closing.

The reference signs in the figure are explained as follows:

Injection mold 1

Punch 10 Punch fixed plate 11

Through hole 111 Convex template 12

Ejector plate 13 Hold hole 131

Thimble fixing plate 14 Connection hole 141

Thimble 15 Core 16

Storage tank 161 Storage hole 162

Inclined hole 163 Fastening screw 17

Die 20 Push Out Mechanism 30

Straight Ejector 31 Base Column 311

Connection block 312 Inclined ejector rod 32

Connecting slot 321 Hook part 322

Pad 33 Cavity 40

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to FIG. 1 , the injection mold 1 of the present utility model includes a punch 10 , a die 20 and two push-out mechanisms 30 fixed on the punch 10 .

The punch 10 includes a punch fixing plate 11 , a punch template 12 , a thimble plate 13 , a thimble fixing plate 14 , a plurality of thimbles 15 and a core 16 mounted on the punch template 12 . A thimble fixed plate 14 is provided above the punch fixed plate 11, and a thimble plate 13 is fixed on the thimble fixed plate 14, and a convex plate 12 is arranged at a certain distance above the thimble plate 13, so that the thimble plate 13 and the thimble fixed plate 14 Displace between the punch fixed plate 11 and the punch plate 12. The punch fixing plate 11 is provided with two through holes 111, the thimble plate 13 is provided with two holding holes 131, and the thimble fixing plate 14 is provided with two connecting holes 141, the connecting holes 141, the holding hole 131 and the through hole 111 connected. The thimble 15 is fixed on the thimble plate 13 . The core 16 is concavely provided with a receiving groove 161, two circular receiving holes 162 connected with the receiving groove 161 and two inclined holes 163 connected with the receiving holes 162. The size of the receiving holes 162 is larger than that of the inclined holes 163. size of.

Please refer to FIG. 1 and FIG. 3 , the ejection mechanism 30 includes a straight ejector rod 31 , an inclined ejector rod 32 connected with one end of the straight ejector rod 31 , and a pad 33 connected with the other end of the straight ejector rod 31 . The straight ejector 31 has a circular base 311 , and a T-shaped connecting block 312 protrudes from one end of the base 311 . The diameter of the base 311 is smaller than the diameter of the accommodating hole 161 . A T-shaped connecting groove 321 is formed at one end of the tilting rod 32 , and a hook portion 322 protrudes toward one side at the other end of the tilting rod 32 . The connecting block 312 of the straight ejector rod 31 is slidably inserted into the connecting groove 321 of the inclined ejector rod 32 .

Please refer to Fig. 1, when the injection mold 1 is assembled, the core 16 is installed on the convex plate 12, and the inclined ejector rod 32 of the ejection mechanism 30 is inserted into the accommodation hole 162 and the inclined hole 163 of the core 16 and protrudes out. In the core 16, the hook portion 322 of the inclined ejector rod 32 cooperates with the end face of the core 16 to form a cavity 40 of a molded product barb; the straight ejector rod 31 of the ejection mechanism 30 is connected with the inclined ejector rod 32, and the straight ejector rod 31 The connection block 312 is inserted into the connection groove 321 of the inclined ejector rod 32; the thimble 15 and the straight ejector rod 31 are inserted into the ejector plate 13, and the cushion block 33 is accommodated in the holding hole 131 of the ejector plate 13; the ejector pin is fixed on the plate 14 is fastened on the thimble plate 13, and the connecting holes 141 of the thimble fixing plate 14 accommodate a fastening screw 17 respectively, and the fastening screw 17 fixes the straight ejector rod 31, the spacer 33 and the thimble fixing plate 14 of the ejection mechanism 30. together, and the through hole 111 provided on the punch fixing plate 11 communicates with the connecting hole 141 and the holding hole 131, the fastening screw 17 can be loosened without dismantling the thimble plate 13 and the thimble fixing plate 14 to make it straight The ejector rod 31 is separated from the spacer 33, so that the straight ejector rod 31 can be quickly replaced; the ejector pin plate 13 and the ejector pin fixing plate 14 are provided with several fastening screws 17 to fix them together.

Referring to Fig. 2, when the injection mold 1 is opened and ejected, the straight ejector rod 31 of the ejection mechanism 30 is ejected in the vertical direction, and the straight ejector rod 31 and the inclined ejector rod 32 are movably connected together. When 31 extends into the accommodation hole 162, the inclined ejector rod 32 obliquely ejects the product along the inclined hole 163. During the ejection process, the hook portion 322 of the inclined ejector rod 32 is separated from the product so that the product can be ejected smoothly.

As mentioned above, the injection mold 1 of the utility model is equipped with a push-out mechanism 30 on the punch 10, and then when the inner wall of the product has a barb, the inclined ejector rod 32 of the push-out mechanism 30 is used to push out simultaneously in the horizontal direction and the vertical direction, So that the product can be demoulded smoothly to improve production efficiency.

The utility model is not limited to the above-mentioned specific embodiment, and those familiar with the technical field can also make various changes accordingly, such as the connection mode of the inclined ejector rod and the straight ejector rod can be riveting or directly fix the inclined ejector rod on the On the ejector pin plate, these changes should be covered within the scope of the claims of the present utility model.

Claims (7)

1. injection mold, comprise a die and one with the punch of the corresponding setting of die, punch comprises a convex template, one and a corresponding ejector retainner plate of convex template and a core that is installed on the convex template; It is characterized in that: be concaved with an inclined hole on the core; Be fixed with at least two ejecting mechanisms on the ejector retainner plate, ejecting mechanism comprises an angle ejector rod, angle ejector rod one end convexes with a hook portion to a side, and angle ejector rod is inserted in the inclined hole of core slidably and stretches out in core, and hook portion cooperates the die cavity that forms a shaped article barb with the core end face.

2. injection mold as claimed in claim 1 is characterized in that: be concaved with an accepting groove, two containing holes that link to each other with this accepting groove on the described core, this containing hole links to each other with described inclined hole; Described angle ejector rod is inserted in accepting groove, containing hole and the inclined hole movably.

3. injection mold as claimed in claim 1 is characterized in that: described ejecting mechanism comprises push rod always, movable being connected on the angle ejector rod of this straight push rod one end, and the other end then is fixed on the ejector retainner plate.

4. injection mold as claimed in claim 3 is characterized in that: described straight push rod has a pilum, and this pilum one end has protruded out a T shape contiguous block; Angle ejector rod one end is provided with a T shape link slot, and contiguous block is inserted in the link slot slidably.

5. injection mold as claimed in claim 1 is characterized in that: described punch comprises a punch retainer, a thimble fixed head and some thimbles; Punch retainer is provided with two through hole, offers two holding holes on the described ejector retainner plate, offers two connecting holes on the thimble fixed head, and connecting hole, holding hole are communicated with through hole.

6. injection mold as claimed in claim 5 is characterized in that: contain a cushion block in the described holding hole, this cushion block is connected with straight push rod one end.

7. injection mold as claimed in claim 5 is characterized in that: contain a holding screw in the connecting hole of described thimble fixed head respectively, this holding screw is fixed together straight push rod, cushion block and the thimble fixed head of ejecting mechanism.

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