CN215703702U

CN215703702U - A runner and product demoulding structure for injection mold

Info

Publication number: CN215703702U
Application number: CN202122340494.6U
Authority: CN
Inventors: 熊廷彦; 倪晓伟
Original assignee: Kunshan Grand Precision Mould Co ltd
Current assignee: Jiangsu Zhigaoyuan Intelligent Equipment Co ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-02-01
Anticipated expiration: 2031-09-26

Abstract

A runner and product demoulding structure for an injection mould comprises a male mould core, a push plate, a reamer insert and a core pulling device, wherein the push plate is arranged above the male mould core in a vertically-sliding manner through an ejector rod, the push plate is provided with a runner and a runner insert which is arranged corresponding to the runner, the reamer insert is connected with the core pulling device and is arranged below the male mould core in a vertically-sliding manner through the core pulling device, and the runner insert and the reamer insert are arranged in a vertically-corresponding manner; a runner and product demoulding structure for injection mold of this scheme design will be used for the runner setting that the product was moulded plastics in the push pedal, also lie in the runner of push pedal after the product shaping simultaneously and go into on the son, can realize the simultaneous drawing of patterns of product and runner through ejecting push pedal like this, need not to install other ejection mechanism respectively for product and runner, and overall structure design is simple ingenious, convenient and practical.

Description

A runner and product demoulding structure for injection mold

Technical Field

The utility model belongs to the technical field of molds, and particularly relates to a runner for an injection mold and a product demolding structure.

Background

The common mold is required to realize smooth production, ejector pins, square pins, ejector sleeves, inclined pins and other ejection structures are generally adopted when the runner and the plastic product are ejected, the ejection structures are adopted for the plastic product due to the influence of a hinge tooth or other mechanisms and no space, and the demolding of the runner and the product cannot be met; because the forming area of the outer plane of the hinge teeth of the product is small, and the spaces occupied by the hinge teeth insert, the bearing and the gear are large, the common ejection structure cannot be adopted, and the mold is required to meet the requirement of automatic production and cannot be used for manually taking the product.

Therefore, it is necessary to design a runner and a product demolding structure for an injection mold to solve the above technical problems.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a runner for an injection mold and a product demoulding structure.

In order to achieve the above objects and other related objects, the present invention provides the following technical solutions: the utility model provides a runner and product demoulding structure for injection mold, includes public mould benevolence, push pedal, hinge tooth income and device of loosing core, the push pedal passes through the ejector pin and sets up with translation from top to bottom public mould benevolence's top, be provided with the runner in the push pedal and with the runner that the runner corresponds the setting goes into the son, hinge tooth goes into the son and connects the device of loosing core and pass through it sets up with translation from top to bottom to loose core the below of public mould benevolence, the runner go into the son with hinge tooth goes into the son and corresponds the setting from top to bottom.

Preferably, the device of loosing core includes the main shaft, the rotatable setting of main shaft, the pot head of main shaft is equipped with the gear wheel, the fixed top that sets up at the branch fulcrum shaft of hinge tooth income, the cover is equipped with the pinion on the branch fulcrum shaft, the pinion with gear engagement, simultaneously the facing is established to the cover on the branch fulcrum shaft, the facing is fixed to be set up, it is provided with the external thread face to divide the fulcrum shaft surface, the facing inner circle is provided with the internal thread, divide the fulcrum shaft to pass through the internal thread face with translation setting about the external thread face cooperation can be.

Preferably, the core pulling device further comprises a rack, and the rack is connected with the spindle through a pair of gear sets.

Preferably, the end of the rack is connected with a telescopic cylinder.

Preferably, the bottom of the ejector rod is provided with an ejector plate, the ejector plate can be arranged in a vertically-moving mode, and the top end of the ejector rod is connected with the push plate.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

a runner and product demoulding structure for injection mold of this scheme design will be used for the runner setting that the product was moulded plastics in the push pedal, also lie in the runner of push pedal after the product shaping simultaneously and go into on the son, can realize the simultaneous drawing of patterns of product and runner through ejecting push pedal like this, need not to install other ejection mechanism respectively for product and runner, and overall structure design is simple ingenious, convenient and practical.

Drawings

Fig. 1 is a schematic diagram of a product and runner demolding structure.

FIG. 2 is a schematic view of the demolded product, runner, and pusher.

In the above drawings, a product 1, a push plate 2, a tooth reaming insert 3, an ejector rod 4, a flow channel 5, a flow channel insert 6, a main shaft 7, a large gear 8, a branch shaft 9, a small gear 10, a tooth socket 11, a rack 12, a telescopic cylinder 13, an ejector plate 14 and a gear set 15.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1-2. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the products of the present invention are usually placed in when used, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 2, a runner and product demolding structure for an injection mold comprises a male mold core, a push plate 2, a reamer insert 3 and a core pulling device, wherein the push plate 2 is arranged above the male mold core in a vertically-movable manner through a push rod 4, the push plate 2 is provided with a runner 5 and a runner insert 6 arranged corresponding to the runner 5, the reamer insert 3 is connected with the core pulling device and arranged below the male mold core in a vertically-movable manner through the core pulling device, and the runner insert 6 and the reamer insert 3 are arranged in a vertically-corresponding manner; according to the runner and product demoulding structure for the injection mould, the runner 5 for product injection is arranged on the push plate 2, and the product 1 is also positioned on the runner insert 6 of the push plate 2 after being formed, so that the product 1 and the runner 5 can be demoulded simultaneously by ejecting the push plate 2, and other ejection mechanisms do not need to be respectively installed on the product and the runner 5; the whole work flow is as follows: after the plastic product 1 is injection molded, the hinge tooth insert 3 positioned below the plastic product is driven by the core-pulling device to translate downwards to be separated from the product and the male film core so as to realize the demolding and core-pulling processes; then the push plate 2 is driven by the ejector rod 4 to move upwards in a translation mode, so that the product and the runner 5 are separated from the core insert, the synchronous demolding process of the product and the runner 5 is completed, and finally the product is taken out of the push plate 2 through the mechanical arm.

The preferred embodiment is as follows:

the core pulling device comprises a main shaft 7, the main shaft 7 is rotatably arranged, a large gear 8 is sleeved at the upper end of the main shaft 7, the hinge tooth insert 3 is fixedly arranged at the top of a branch shaft 9, a small gear 10 is sleeved on the branch shaft 9, the small gear 10 is meshed with the large gear 8, a tooth socket 11 is sleeved on the branch shaft 9, the tooth socket 11 is fixedly arranged, an outer thread surface is arranged on the surface of the branch shaft 9, an inner thread is arranged on the inner ring of the tooth socket 11, and the branch shaft 9 can be vertically translated through the matching of the inner thread surface and the outer thread surface; the working mode of the core-pulling device can be as follows: because the main shaft 7 and all branch shafts 9 are connected by a large gear 8 meshed with a plurality of small gears 10, when the main shaft 7 rotates, the branch shafts 9 around the main shaft can also rotate, one hinge tooth insert 3 is correspondingly arranged at the top of one branch shaft 9, the assembly of the branch shafts 9 and the tooth sockets 11 is similar to a screw rod and nut structure, and the tooth sockets 11 are fixed, so when the branch shafts 9 rotate, the branch shafts 9 can drive the hinge tooth inserts 3 to move up and down in a translational mode, and core-pulling and demolding of the hinge tooth inserts 3 can be realized by the principle.

The core-pulling device further comprises a rack 12, and the rack 12 is connected with the spindle 7 through a pair of gear sets 15; the rotation of the main shaft 7 can be realized by the left-right translation of the rack 12, the rack 12 is meshed with one gear of the gear set 15, and the other gear of the gear set 15 is sleeved on the main shaft 7.

The end part of the rack 12 is connected with a telescopic cylinder 13; the left and right translational movement of the rack 12 can be achieved by means of a telescopic cylinder 13.

The bottom of the ejector rod 4 is provided with an ejector plate 14, the ejector plate 14 can be arranged in a vertically-moving mode, and the top end of the ejector rod 4 is connected with the push plate 2; the up and down translation of the ram 4 may be achieved by the ejector plate 14.

In conclusion, the beneficial effects of the embodiment are as follows: the flow channel 5 and the product are integrated on the push plate 2, the product and the flow channel 5 are simultaneously demoulded by ejecting the push plate 2, and other ejection mechanisms do not need to be respectively installed on the product and the flow channel 5; the overall structure of the die is simple and ingenious in design; the injection molding product has the advantages of attractive appearance, no thimble trace, smooth ejection of the mold, stable structure, mass production and smooth realization of automatic production.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a runner and product demoulding structure for injection mold which characterized in that: including public mould benevolence, push pedal, hinge tooth income and device of loosing core, the push pedal passes through the ejector pin and sets up with translation from top to bottom the top of public mould benevolence, be provided with the runner on the push pedal and with the runner that the runner corresponds the setting goes into the son, hinge tooth goes into the son and connects the device of loosing core and pass through the device of loosing core sets up with translation from top to bottom the below of public mould benevolence, the runner go into the son with hinge tooth goes into the son and corresponds the setting from top to bottom.

2. The runner and product demolding structure for an injection mold as claimed in claim 1, wherein: the device of loosing core includes the main shaft, the rotatable setting of main shaft, the last pot head of main shaft is equipped with the gear wheel, the fixed top that sets up at the branch fulcrum shaft of hinge tooth income, the cover is equipped with the pinion on the branch fulcrum shaft, the pinion with gear wheel engagement, simultaneously the facing is established to the cover on the branch fulcrum shaft, the facing is fixed to be set up, it is provided with the external thread face to divide the fulcrum shaft surface, the facing inner circle is provided with the internal thread, divide the fulcrum shaft to pass through the internal thread face with translation setting about the external thread face cooperation can be.

3. The runner and product demolding structure for an injection mold as claimed in claim 2, wherein: the core-pulling device further comprises a rack, and the rack is connected with the spindle through a pair of gear sets.

4. A runner and product demolding structure for an injection mold as claimed in claim 3, wherein: the end part of the rack is connected with a telescopic cylinder.

5. The runner and product demolding structure for an injection mold as claimed in claim 1, wherein: the bottom of the ejector rod is provided with an ejector plate, the ejector plate can be arranged in a vertically-moving mode, and the top end of the ejector rod is fixedly connected with the push plate.