CN-116551930-B - Injection mold and injection molding machine system

CN116551930BCN 116551930 BCN116551930 BCN 116551930BCN-116551930-B

Abstract

The injection mold and injection molding machine system comprises a mold core plate, a top plate and at least one slide plate assembly, wherein the mold core plate is provided with a guide post, the top plate is guided to move by the guide post, the slide plate assembly comprises a slide plate group at least comprising a first slide plate group and a second slide plate group, the slide plate assembly is configured to have two opening and closing states, when the top plate is opened in a state of moving and ejecting along the guide post, at least the second slide plate group is kept in a closed state, when the top plate is opened in a state of moving and ejecting along the guide post, at least the first slide plate group is kept in a closed state, the first slide plate group and the second slide plate group are set to be in two opposite opening and closing states, and a plastic product injection molded in the injection mold is separated into front and back two times for demolding, so that the problem that the first slide plate group and the second slide plate group need to be opened simultaneously for one time and the space of the injection mold is avoided.

Inventors

XIE GUOJI
JIANG XIAOPING
DONG SHUSHENG
LIANG CANMIAN
LU JIA
YANG JIANZHUO

Assignees

广东星联精密机械有限公司

Dates

Publication Date: 20260508
Application Date: 20230330

Claims (7)

1. The injection mold is characterized by comprising a mold core plate, a top plate and at least one slide plate assembly, wherein the mold core plate is provided with a guide post, the top plate is guided to move by the guide post, the slide plate assembly comprises a slide plate group at least comprising a first slide plate group and a second slide plate group, and the slide plate assembly is configured to have the following two opening and closing states: when the first sliding plate group is opened in a state that the top plate moves along the guide post to eject, at least the second sliding plate group is kept in a closed state; When the second sliding plate group is opened in the ejection state of the top plate moving along the guide post, at least the first sliding plate group is kept in a closed state; the injection mold further comprises a brace assembly corresponding to the slide plate assembly, wherein the brace assembly comprises a brace group at least comprising a first brace group and a second brace group, and the first brace group and the second brace group are respectively and correspondingly associated with the first slide plate group and the second slide plate group; the injection mold further comprises a chute assembly corresponding to the brace assembly, wherein the chute assembly comprises a chute plate group at least comprising a first chute plate group and a second chute plate group, and the first chute plate group and the second chute plate group are respectively correspondingly associated with the first brace group and the second brace group; The injection mould also comprises a driving device, and the working process of the injection mould is as follows: the method comprises the steps that S1, before the top plate is ejected for the first time, a driving device drives a chute assembly to synchronously slide along the X-axis direction, a bending track of an opening and closing chute plate sliding to a first chute plate group is matched with a roller of a first brace group, and a straight track of a straight chute plate of a second chute plate group is matched with a roller of a second brace group; S2, when the top plate is ejected for the first time, the first brace set drives two sliding plates in the first sliding plate set to move back along the Y axis under the guidance of the first sliding plate set, and plastic products in a cavity of the first sliding plate set are demolded; S3, the top plate is retracted for the first time, the first brace group drives two sliding plates in the first sliding plate group to move in opposite directions along the Y axis under the guidance of the first sliding plate group, and a cavity in the first sliding plate group is restored to a die closing state; s4, before the top plate is ejected out for the second time, the driving device drives the chute assembly to synchronously slide along the X-axis direction, the straight track of the straight chute plate sliding to the first chute plate group is matched with the roller of the first brace group, and the curved track of the opening and closing chute plate of the second chute plate group is matched with the roller of the second brace group; S5, when the top plate is ejected for the second time, the second brace set is guided by the second sliding groove plate set to drive two sliding plates in the second sliding plate set to move back along the Y axis, and plastic products in a cavity of the second sliding plate set are demolded; And S6, the top plate retreats for the second time, the second brace group drives two sliding plates in the second sliding plate group to move in the opposite direction along the Y axis under the guidance of the second sliding plate group, the die cavity in the second sliding plate group is restored to a die closing state, the first brace group drives the two sliding plates in the first sliding plate group to move in the same direction along the Z axis under the guidance of the first sliding plate group, the relative static state is kept on the Y axis, and the die cavity in the first sliding plate group is kept to be closed.
2. The injection mold of claim 1, wherein the first and second sets of slides are configured to open and close under the influence of first and second sets of braces, respectively, the first and second sets of braces being slidable relative to the second and first sets of slides, respectively.
3. The injection mold of claim 1 wherein there are two types of movement between the riblet assembly and chute assembly: the first sliding groove plate group guides the first brace group to generate transverse displacement so as to drive the first sliding plate group to open, the second brace group slides relative to the first sliding plate group, and the second sliding groove plate group guides the second brace group to keep a closed state; The second sliding groove plate group guides the second brace group to generate transverse displacement so as to drive the second sliding plate group to open, the first brace group slides relative to the second sliding plate group, and the first brace group is guided by the first sliding groove plate group to keep a closed state.
4. The injection mold of claim 1, wherein a gap is provided between the first slide plate set and the second slide plate set, the gap being configured to allow displacement movement of the first slide plate set or the second slide plate when the first slide plate set or the second slide plate is opened, and opening and closing movements of the first slide plate set and the second slide plate set located on both sides of the gap being opposite.
5. The injection mold of claim 4, wherein the gap has a width 1 to 2 times the displacement value of one side of the first slide plate group or the second slide plate group when opened.
6. The injection mold of claim 1, wherein the driving means drives the first and second sets of runner plates to move synchronously so that the first and second sets of runner plates direct the first and second sets of braces to switch between producing lateral displacement and maintaining a closed state, respectively.
7. An injection molding machine is characterized by comprising a top plate driving device, a valve needle control device, a taking-out control device and an injection mold according to any one of claims 1-6, wherein the top plate driving device is used for driving a top plate to act, the valve needle control device is used for controlling the valve needle to act, and the taking-out control device is used for controlling the taking-out action of plastic products.

Description

Injection mold and injection molding machine system Technical Field The invention belongs to the technical field of molds, and particularly relates to a blank injection mold and an injection molding machine system. Background In the process of manufacturing a common plastic bottle, an intermediate product of a bottle blank is required to be formed by injection molding, and then a plastic bottle finished product is formed by blow molding of the bottle blank. The bottle blank is formed by injecting raw materials into a die cavity of a blank injection die at a specific temperature and pressure through an injection molding process under the working condition of the injection molding machine. In order to improve the production efficiency of bottle blanks, a plurality of mold cavities are arranged in the blank injection mold, so that the blank injection mold can be used for injection molding a plurality of bottle blanks at one time. However, the existing blank injection mold, such as the chinese patent application No. 201320315465.7, discloses a cam-follower mold opening and closing mechanism, which comprises a mold plate, a connecting rod assembly slidably disposed on the mold plate, at least one group of mold lip mounting assemblies fixed on the connecting rod assembly, mold lips fixed on the mold lip mounting assemblies, a roller assembly fixed on the same end of the mold lip mounting assemblies, and a guide slot movable plate disposed on one side of the roller assembly; the die lip mounting assembly comprises two die lip mounting plates which are arranged in parallel and adjacent in parallel, the same ends of the two die lip mounting plates are respectively fixed on the first connecting rod and the second connecting rod, the roller assembly comprises a first roller and a second roller, one end of one die lip mounting plate fixed on the first connecting rod is fixedly connected with a rotating shaft part of the first roller, one end of one die lip mounting plate fixed on the second connecting rod is fixedly connected with a rotating shaft part of the second roller, a first guide groove and a second guide groove are arranged on one side face of the guide groove movable plate, facing the roller assembly, of the first roller and the second roller, the pulley parts of the first roller and the second roller are respectively arranged in the first guide groove and the second guide groove in a sliding mode, the guide groove movable plate is movably mounted on the template along the vertical direction, and the distance between the first guide groove and the second guide groove is gradually reduced along the vertical direction. When the die is opened, all die lip installation components are opened simultaneously, so that a space for die opening action of the die is reserved between each group of die lip installation components, the number of the die cavities is limited under the condition that the overall dimension of the die is unchanged, the number of products subjected to one-time injection molding is difficult to increase, and the production cost is difficult to reduce and the production efficiency is improved. Disclosure of Invention In order to overcome the defects in the prior art, the invention provides a technical scheme of a blank injection mold and an injection molding machine system. The technical scheme adopted for solving the technical problems is as follows: The blank injection mold comprises a mold core plate, a top plate and at least one slide plate assembly, wherein the mold core plate is provided with a guide post, the top plate is guided to move by the guide post, the slide plate assembly comprises a slide plate group at least comprising a first slide plate group and a second slide plate group, and the slide plate assembly is configured to have the following two opening and closing states: when the first sliding plate group is opened in a state that the top plate moves along the guide post to eject, at least the second sliding plate group is kept in a closed state; And when the second sliding plate group is opened in the ejection state of the top plate moving along the guide post, at least the first sliding plate group is kept in a closed state. In the invention, the injection mould further comprises a brace assembly corresponding to the slide plate assembly, wherein the brace assembly comprises a brace group at least comprising a first brace group and a second brace group, and the first brace group and the second brace group are respectively and correspondingly associated with the first slide plate group and the second slide plate group. In the invention, the first sliding plate set and the second sliding plate set are respectively opened and closed under the action of the first brace set and the second brace set, and the first brace set and the second brace set can respectively slide relative to the second sliding plate set and the first sliding plate set. In the invention, the injection mould furt