CN217993306U

CN217993306U - Automatic water gap breaking mold structure

Info

Publication number: CN217993306U
Application number: CN202220579696.8U
Authority: CN
Inventors: 郭秋生; 杨勇
Original assignee: Huizhou Silver Baoshan New Technology Co ltd
Current assignee: Huizhou Silver Baoshan New Technology Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-12-09
Anticipated expiration: 2032-03-16

Abstract

The utility model discloses an automatic disconnected mouth of a river mould structure, including shaping subassembly and drawing of patterns subassembly, the shaping subassembly includes die carrier and mould benevolence, and mould benevolence sets up on the die carrier, and drawing of patterns subassembly includes movable mould board, ejector pin and ejector pin, and the movable mould board slides and sets up in the die carrier, and the one end of ejector pin sets up on the movable mould board, and the other end of ejector pin wears to establish die carrier and mould benevolence in proper order, and the ejector pin slides and sets up on the movable mould board, and the movable mould board is used for sliding when being close to mould benevolence to drive the ejector pin and successively follow mould benevolence and stretch out. So, have the precedence when setting up stripper rod and ejector pin and stretching out from mould benevolence to earlier with the ejecting drawing of patterns of plastic goods, with the ejecting drawing of patterns of mouth of a river material again, make plastic goods can amputate disconnected mouth of a river, avoid introducing extra mouth of a river process of cutting, can improve injection molding efficiency, improve plastic goods's production quality simultaneously.

Description

Automatic water gap breaking mold structure

Technical Field

The utility model relates to an injection mold field especially relates to an automatic disconnected mouth of a river mould structure.

Background

Injection molds are indispensable tools in the injection molding industry. The plastic product with any shape can be molded by utilizing the cavity in the injection mold.

The plastic runner in the injection mold communicated with the cavity correspondingly forms a nozzle material which is adhered to the molded plastic product. The traditional treatment method is to take the plastic product and the nozzle material out of the mold and then cut the nozzle material. However, this method not only adds an extra step of cutting the nozzle, but also causes the nozzle structure of the plastic product to be difficult to keep consistent and to be easily uneven. Based on the consideration, the mold structure capable of automatically cutting the nozzle material of the plastic product is specially provided, so that the subsequent manual nozzle cutting operation is avoided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, provide one kind can be automatically with the automatic disconnected mouth of a river mould structure of mouth of a river material excision on the plastic goods.

The purpose of the utility model is realized through the following technical scheme:

an automatic disconnected mouth of a river mould structure includes:

the molding assembly comprises a mold frame and a mold core, and the mold core is arranged on the mold frame; and

the demolding assembly comprises a movable template, a demolding rod and an ejector rod, the movable template is arranged in the mold frame in a sliding mode, one end of the demolding rod is arranged on the movable template, the other end of the demolding rod sequentially penetrates through the mold frame and the mold core, the ejector rod is arranged on the movable template in a sliding mode, and the ejector rod sequentially penetrates through the mold frame and the mold core;

the movable template is used for driving the demoulding rod and the ejector rod to extend out of the mold core successively when sliding to approach the mold core.

In one embodiment, the die carrier comprises a top plate and a bottom plate, the top plate is arranged on the bottom plate, a gap is arranged between the top plate and the bottom plate, a guide post is arranged on the movable die plate, and the guide post penetrates through the top plate so that the movable die plate can slide between the top plate and the bottom plate in a reciprocating manner.

In one embodiment, the top plate is provided with a fixing groove, and the mold core is accommodated in the fixing groove.

In one embodiment, the mold core is provided with a glue inlet groove and a material ejecting hole, the material ejecting hole is located on the bottom wall of the glue inlet groove, and the ejector rod penetrates through the material ejecting hole.

In one embodiment, the distance between the end surface of the ejector rod and the bottom wall of the glue inlet groove is 4-6 mm.

In one embodiment, the ejector rod is provided with a clamping boss, a clamping groove is formed in the movable template, and the clamping boss is arranged in the clamping groove in a sliding manner.

In one embodiment, the ejector rod penetrates through the movable template.

In one embodiment, the movable template comprises two sub-plates, the sub-plates are provided with sub-grooves, and when the two sub-plates are mutually overlapped to form the movable template together, the two sub-grooves jointly enclose the clamping groove.

In one embodiment, the top rod comprises two branch rods, the two branch rods are connected to form the top rod together, and the two branch rods penetrate through the two branch plates in a one-to-one correspondence manner.

Compared with the prior art, the utility model discloses at least, following advantage has:

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of an automatic water gap breaking mold structure according to an embodiment of the present invention;

FIG. 2 is a partially enlarged structural view of A of FIG. 1;

fig. 3 is a schematic structural view of the ejector rod and the locking boss according to an embodiment of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings.

Referring to fig. 1, an automatic water gap breaking mold structure 10 includes a molding assembly 100 and a demolding assembly 200, the molding assembly 100 includes a mold base 110 and a mold core 120, the mold core 120 is disposed on the mold base 110, the demolding assembly 200 includes a movable mold plate 210, a demolding rod 220 and an ejector rod 230, the movable mold plate 210 is slidably disposed in the mold base 110, one end of the demolding rod 220 is disposed on the movable mold plate 210, the other end of the demolding rod 220 sequentially penetrates through the mold base 110 and the mold core 120, the ejector rod 230 is slidably disposed on the movable mold plate 210, the ejector rod 230 sequentially penetrates through the mold base 110 and the mold core 120, and the movable mold plate 210 is used for driving the demolding rod 220 and the ejector rod 230 to sequentially extend out of the mold core 120 when sliding to approach the mold core 120.

It should be noted that the mold core 120 is installed on the mold frame 110, wherein the mold core 120 is processed into a corresponding shape structure according to the shape of the plastic product. The movable platen 210 is installed in the mold frame 110 such that the movable platen 210 can slide with respect to the mold frame 110 to enable the movable platen 210 to approach or separate from the core 120. One end of the demoulding rod 220 is fixedly installed on the movable mould plate 210, and the other end of the demoulding rod 220 sequentially passes through the mould base 110 and the mould core 120, so that the movable mould plate 210 drives the demoulding rod 220 to extend and slide, and when a plastic product is molded on the mould core 120, the demoulding rod 220 can push the plastic product to realize demoulding. Further, the ejector rod 230 is slidably installed on the movable mold plate 210, and one end of the ejector rod 230 sequentially passes through the mold frame 110 and the mold core 120. The ejector pins 230 have a certain sliding distance with respect to the movable mold plate 210, and the movable mold plate 210 can drive the ejector pins 230 to sequentially slide on the mold frame 110 and the mold insert 120. Specifically, when the movable mold plate 210 slides to be close to the mold core 120, since the ejector rod 230 can slide relative to the movable mold plate 210, the position of the ejector rod 230 relative to the mold core 120 is not changed, and it is known that after the movable mold plate 210 slides for a certain distance, the movable mold plate 210 can drive the ejector rod 230 to slide, that is, a certain sliding lag exists between the ejector rod 230 and the movable mold plate 210, and the demolding rod 220 moves synchronously with the movable mold plate 210, so that the ejector rod 230 extends out of the mold core 120 later than the demolding rod 220 when the sliding between the ejector rod 230 and the demolding rod 220 has a certain offset, and thus the demolding rod 220 is configured to eject the plastic product for demolding, so that a certain time difference exists between the plastic product and the nozzle material during the demolding, and the characteristic that the structural strength between the plastic product and the nozzle material is poor is utilized, so that the plastic product and the nozzle material are forcedly offset to achieve the purpose of nozzle cutting. Therefore, the water gap can be automatically cut off when the plastic product is subjected to mold stripping, a subsequent water gap cutting process is not needed, the production efficiency is improved, meanwhile, the consistency of the water gap structure of the plastic product can be ensured, and the injection molding quality is improved.

Referring to fig. 1, in an embodiment, the mold frame 110 includes a top plate 111 and a bottom plate 112, the top plate 111 is disposed on the bottom plate 112, a space is disposed between the top plate 111 and the bottom plate 112, a guide post 240 is disposed on the movable mold plate 210, and the guide post 240 penetrates through the top plate 111 to enable the movable mold plate 210 to slide between the top plate 111 and the bottom plate 112 in a reciprocating manner.

A certain gap is provided between the top plate 111 and the bottom plate 112 so that the movable die plate 210 can slide back and forth in the gap between the top plate 111 and the bottom plate 112. In order to stably slide the movable die plate 210, guide posts 240 are fixedly installed on the movable die plate 210, and the guide posts 240 pass through the top plate 111, so that the movable die plate 210 can stably slide closer to or farther from the top plate 111.

Referring to fig. 1, in an embodiment, a top plate 111 is provided with a fixing groove, and a mold core 120 is accommodated in the fixing groove. Thus, the mold insert 120 is mounted in the top plate 111, and the top plate 111 protects the mold insert 120.

Referring to fig. 1 and fig. 2, in an embodiment, the mold core 120 is formed with a glue inlet groove 121 and a material ejecting hole 122, the material ejecting hole 122 is located on a bottom wall of the glue inlet groove 121, and the ejector rod 230 is disposed through the material ejecting hole 122.

It should be noted that, when the mold core 120 is provided with a cavity for molding a plastic product, the glue inlet groove 121 is communicated with the cavity, so that the molten plastic enters the cavity through the glue inlet groove 121. Therefore, the plastic in the glue inlet groove 121 is cooled to form a nozzle material. Set up liftout hole 122 on advancing the diapire of gluey groove 121 for ejector pin 230 holds in liftout hole 122, so that ejector pin 230 wears to establish the slip along liftout hole 122, and then can push up the drawing of patterns with the mouth of a river material that advances the formation in gluey groove 121.

Referring to fig. 1 and 2, in an embodiment, a distance D between an end surface of the lift pin 230 and a bottom wall of the glue inlet groove 121 is 4mm to 6mm.

It should be noted that when the movable platen 210 slides to be close to the mold core 120, the demolding rod 220 is driven to extend out from the surface of the mold core 120, so as to eject and demold the plastic product. At this time, the plastic product and the nozzle material are connected, so as to avoid the nozzle material being pushed and demolded to cause nozzle cutting failure, it is necessary to improve the adhesion between the nozzle material and the mold core 120. Specifically, a certain distance D is set between the end surface of the ejector rod 230 and the bottom wall of the glue inlet groove 121, that is, the material ejecting hole 122 of the distance D is also filled with plastic to form a nozzle material, so that the viscosity between the nozzle material and the mold core 120 can be enhanced, and the nozzle material is prevented from being brought up during demolding of the plastic product, so that the plastic product and the nozzle material can be smoothly separated.

Referring to fig. 1, in an embodiment, the top bar 230 is provided with a locking boss 250, the movable mold plate 210 is provided with a locking groove 211a, and the locking boss 250 is slidably disposed in the locking groove 211a.

It should be noted that, in order to enable the movable mold plate 210 to drive the lift rod 230 to approach or depart from the mold core 120, and at the same time, to enable the lift rod 230 to slide relative to the movable mold plate 210, the positioning boss 250 is disposed on the lift rod 230, so that the positioning boss 250 is larger than the lift rod 230, and the positioning groove 211a is disposed on the movable mold plate 210, so that the positioning boss 250 is accommodated in the positioning groove 211a. The clamping grooves 211a and the clamping bosses 250 are matched, so that the clamping grooves 211a are used for clamping the clamping bosses 250, the ejector rod 230 can slide relative to the movable template 210, and the ejector rod 210 cannot slide out of the movable template 210, so that the ejector rod 220 and the ejector rod 230 can move sequentially under the driving of the movable template 210.

Referring to fig. 1, in one embodiment, the lift pins 230 penetrate the movable platen 210. The lift pins 230 penetrate the movable platen 210, such that one end of the lift pins 230 sequentially penetrates the top plate 111 and the core 120, and the other end of the lift pins 230 can abut against the bottom plate 112. Thus, when the movable platen 210 is away from the mold core 120, the lift pins 230 abut against the bottom plate 112 and cannot move downward, so that the locking bosses 250 are located at the upper portions of the locking grooves 211a. When the movable mold plate 210 needs to be pushed to close to the mold core 120 for demolding, the locking groove 211a has enough area to avoid the locking boss 250, so that the top bar 230 and the demolding bar 220 can move in sequence.

Referring to fig. 1, in an embodiment, the movable mold plate 210 includes two sub-plates 211, the sub-plates 211 have sub-slots, and the two sub-slots 211 are overlapped to form the movable mold plate 210, so that the two sub-slots jointly form a clamping slot 211a.

It should be noted that the movable die plate 210 is composed of two sub-plates 211, wherein the two sub-slots are butted against each other to form a locking slot 211a, so that the locking slot 211a can be located in the movable die plate 210. But also facilitates the processing of the die through the combined structure.

Referring to fig. 1 and 3, in an embodiment, the top bar 230 includes two branch bars 231, the two branch bars 231 are connected to form the top bar 230, and the two branch bars 231 are correspondingly disposed through the two branch plates 211.

It should be noted that the top rod 230 is formed by connecting two branch rods 231, which is beneficial to processing the top rod 230, for example, the branch rods 231 may be replaced by a thimble, which is a standard component in the mold field, and is beneficial to maintenance and replacement of the mold by directly using the standard component, where the thimble head is equivalent to the retaining boss 250. In one embodiment, the locking boss 250 is formed by two ejector pins.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides an automatic disconnected mouth of a river mould structure which characterized in that includes:

the die core is provided with a glue inlet groove and a material ejecting hole, the material ejecting hole is positioned on the bottom wall of the glue inlet groove, and the ejector rod penetrates through the material ejecting hole;

the distance between the end surface of the ejector rod and the bottom wall of the glue inlet groove is 4-6 mm;

the movable template is used for driving the demoulding rod and the ejector rod to sequentially extend out of the mold core when sliding to be close to the mold core.

2. The mold structure with the automatic water gap breaking function according to claim 1, wherein the mold frame comprises a top plate and a bottom plate, the top plate is arranged on the bottom plate, a gap is arranged between the top plate and the bottom plate, a guide post is arranged on the movable mold plate, and the guide post penetrates through the top plate so that the movable mold plate can slide between the top plate and the bottom plate in a reciprocating manner.

3. The mold structure of claim 2, wherein the top plate has a fixing groove, and the mold insert is received in the fixing groove.

4. The mold structure of claim 1, wherein the pin rod is provided with a locking boss, the movable mold plate is provided with a locking groove therein, and the locking boss is slidably disposed in the locking groove.

5. The mold structure of claim 1, wherein the ejector rod penetrates through the movable mold plate.

6. The mold structure of claim 4, wherein the movable mold plate comprises two sub-plates, each sub-plate has a sub-slot, and the two sub-plates are stacked against each other to form the movable mold plate together, so that the two sub-slots together define the retaining slot.

7. The mold structure of claim 6, wherein the ejector rod comprises two branch rods, the two branch rods are connected to form the ejector rod together, and the two branch rods penetrate through the two branch plates in a one-to-one correspondence manner.