CN214926454U

CN214926454U - Independent injection device of multicomponent injection molding machine

Info

Publication number: CN214926454U
Application number: CN202121669813.1U
Authority: CN
Inventors: 娄新
Original assignee: Ningbo Lijin Machinery Co ltd
Current assignee: Ningbo Lijin Plastic Machinery Intelligent Manufacturing Co ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-11-30
Anticipated expiration: 2031-07-22

Abstract

The utility model discloses an independent injection apparatus of multicomponent injection molding machine, including moulding the subassembly in advance and jet out the subassembly, mould the subassembly in advance and be linked together with jet out the subassembly, mould the subassembly in advance and include a melt adhesive cylinder and set up the drain hole in melt adhesive cylinder one side, the inside of melt adhesive cylinder be provided with and penetrate gluey screw rod, penetrate gluey screw rod and rotate by the power pack drive of melt adhesive cylinder one end, the subassembly that jets out include a guide pillar and set up the mouth that jets in guide pillar one end, the other end and the guide pillar inner chamber of melt adhesive cylinder be linked together, the inside of guide pillar be provided with but axial reciprocating motion push away the material drift, push away the material drift and will enter into the melting sizing material in the guide pillar and extrude from jetting the mouth under the effect that pushes away material power component. The utility model discloses simple structure can be independent of the injection molding machine, and independent injection device can the level or install perpendicularly on the mould, can provide more simple nimble scheme for the shaping of polychrome mould.

Description

Independent injection device of multicomponent injection molding machine

Technical Field

The utility model relates to an injection molding machine field specifically is an independent injection device of multicomponent injection molding machine.

Background

The injection device is an integral part of the injection molding machine and can provide a feeding function for the injection molding process. The injection part of the traditional injection molding machine is arranged on the machine, and can not be randomly disassembled and assembled, even if the injection device is replaced, the injection part is very complicated, and along with the continuous improvement of the requirements of people on plastic products and injection molding equipment, a scheme which is simpler and more flexible for forming a multicolor mold is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides an independent injection apparatus of multicomponent injection molding machine, simple structure can be independent of the injection molding machine, and independent injection apparatus can the level or install perpendicularly on the mould, can provide more simple nimble scheme for polychrome mould shaping.

In order to achieve the above object, the utility model provides a following technical scheme: the independent injection device of the multi-component injection molding machine comprises a pre-molding assembly and an ejection assembly, wherein the pre-molding assembly is communicated with the ejection assembly, the pre-molding assembly comprises a melt rubber cylinder and a discharge hole arranged on one side of the melt rubber cylinder, a rubber injection screw is arranged inside the melt rubber cylinder and is driven by a power unit at one end of the melt rubber cylinder to rotate, the ejection assembly comprises a guide pillar and an ejection nozzle arranged at one end of the guide pillar, the other end of the melt rubber cylinder is communicated with an inner cavity of the guide pillar, a material pushing punch capable of axially reciprocating is arranged inside the guide pillar, and the melt rubber entering the guide pillar is extruded from the ejection nozzle under the action of a material pushing power element.

Preferably, the pushing power element comprises a connecting sleeve arranged at one end of the guide post and a hydraulic cylinder body connected to one end of the connecting sleeve, an ejection push rod is movably arranged in the hydraulic cylinder body, and the ejection push rod is connected with one end of the pushing punch.

Preferably, the outer side of one end of the guide post is in threaded connection with an adjusting nut, and one end of the adjusting nut abuts against the connecting sleeve to push the connecting sleeve to lift up and down.

Preferably, a connecting flange is arranged on one side of the guide post, one end of the glue melting cylinder is communicated with the guide post through the connecting flange, and a non-return ring is arranged in the connecting flange.

Preferably, the end part of the connecting flange is embedded with a positioning sleeve, the positioning sleeve presses the non-return ring, and one end of the glue injection screw rod is inserted into the positioning sleeve.

Preferably, the guide post is mounted on the injection platform moving plate.

Preferably, the power unit is a hydraulic motor, the hydraulic motor is connected with a molten rubber barrel fixing seat at one end of a molten rubber barrel through a motor connecting seat, and a transmission shaft used for connecting the hydraulic motor and the rubber injection screw is arranged in the motor connecting seat.

Compared with the prior art, the beneficial effects of the utility model are that:

the installation is simple, the independent injection device has a simple and light structure, a professional engineer can complete the installation and debugging with the injection molding machine in only a few hours, the plug and play can be realized, and the connection and the movement between different machine tables are convenient; the cost is saved, and for the client who has bought the single-color machine, can directly equip the injection device according to the production demand, can regard as the polychromer to use, need not purchase new machine again.

Drawings

FIG. 1 is a front view of a half-section structure of the present invention;

fig. 2 is the side view half-section structure diagram of the utility model.

Reference numerals:

1. the device comprises an injection assembly, 11, an injection nozzle, 12, an injection table moving plate, 13, a guide pillar, 14, an adjusting nut, 15, a connecting sleeve, 16, a material pushing punch, 17, an injection push rod, 18, a hydraulic cylinder body, 2, a pre-molding assembly, 21, a connecting flange, 22, a positioning sleeve, 23, a glue melting cylinder, 24, a glue injection screw, 25, a glue melting cylinder fixing seat, 26, a motor connecting seat, 27, a power unit, 28, a transmission shaft, 29 and a discharging port.

Detailed Description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention, and it should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is also changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1-2, to achieve the above object, the present invention provides the following technical solutions as embodiments: an independent injection device of a multi-component injection molding machine comprises a pre-molding component 2 and an injection component 1, wherein the pre-molding component 2 is communicated with the injection component 1, the pre-molding component 2 comprises a glue melting cylinder 23 and a discharge hole 29 arranged on one side of the glue melting cylinder 23, raw materials can be put into the glue melting cylinder 23 through the discharge hole 29, the interior of the glue melting cylinder 23 is heated, a glue injection screw 24 is arranged inside the glue melting cylinder 23, the glue injection screw 24 is driven to rotate by a power unit 27 arranged at one end of the glue melting cylinder 23, the raw materials can be melted through the rotation of the glue injection screw 24 to form molten glue, the injection component 1 comprises a guide pillar 13 and an injection nozzle 11 arranged at one end of the guide pillar 13, the other end of the glue melting cylinder 23 is communicated with the inner cavity of the guide pillar 13, a molten glue extruded by the glue injection screw 24 enters the guide pillar 13, a material pushing punch 16 capable of axially reciprocating is arranged inside the guide pillar 13, the pushing ram 16 extrudes the molten rubber entering the guide post 13 from the injection nozzle 11 under the action of a pushing power element, and the guide post 13 is arranged on the injection platform moving plate 12.

In this embodiment, as shown in fig. 1, the pushing power element includes a connecting sleeve 15 installed at one end of the guide pillar 13 and a hydraulic cylinder 18 connected to one end of the connecting sleeve 15, an ejection push rod 17 is movably disposed inside the hydraulic cylinder 18, the ejection push rod 17 is connected to one end of the pushing ram 16, hydraulic oil is injected into one end of the hydraulic cylinder 18, the ejection push rod 17 can be pushed to move, the pushing ram 16 is driven to move, and the molten rubber in the guide pillar 13 is ejected from the nozzle 11.

In this embodiment, the outer side of one end of the guide post 13 is connected with an adjusting nut 14 through a thread, one end of the adjusting nut 14 abuts against the connecting sleeve 15 to push the connecting sleeve 15 to move up and down, the adjusting nut 14 plays a role in supporting and increasing the height of the connecting sleeve 15, the nozzle 11 can be tightly attached to a mold through the height of the connecting sleeve 15, and glue leakage is reduced.

In this embodiment, a connecting flange 21 is disposed on one side of the guide post 13, one end of the glue cylinder 23 is communicated with the guide post 13 through the connecting flange 21, the connecting flange 21 facilitates connection of the glue cylinder 23, a non-return ring 20 is mounted inside the connecting flange 21, the non-return ring 20 is annular, a screw is disposed inside the non-return ring, glue material can pass through the non-return ring 20 to push the screw to move during discharging, extrusion of the glue material is achieved, the screw can be pushed to return to block the non-return ring 20 during returning of the glue material, non-return is achieved, the specific structure of the non-return ring is the prior art, and the non-return ring is widely applied to an injection molding machine.

In this embodiment, the end of the connecting flange 21 is embedded with a positioning sleeve 22, the positioning sleeve 22 presses the check ring 20, and one end of the glue injection screw 24 is inserted into the positioning sleeve 22, so that the structure is compact, the positioning sleeve 22 can guide the rotation of the glue injection screw 24, the rotation of the glue injection screw is more stable, and the extruded molten glue can be guided.

In this embodiment, the power unit 27 is a hydraulic motor, and is connected to the glue cylinder fixing seat 25 at one end of the glue cylinder 23 through a motor connecting seat 26, and a transmission shaft 28 for connecting the hydraulic motor and the glue injection screw 24 is disposed inside the motor connecting seat 26, so that the hydraulic motor can stably and stably drive the glue injection screw 24 to rotate.

Claims

1. The independent injection device of the multi-component injection molding machine is characterized by comprising a pre-molding assembly (2) and an injection assembly (1), wherein the pre-molding assembly (2) is communicated with the injection assembly (1), the pre-molding assembly (2) comprises a glue melting cylinder (23) and a discharge hole (29) arranged on one side of the glue melting cylinder (23), a glue injection screw (24) is arranged in the glue melting cylinder (23), the glue injection screw (24) is driven by a power unit (27) at one end of the glue melting cylinder (23) to rotate, the injection assembly (1) comprises a guide post (13) and an injection nozzle (11) arranged at one end of the guide post (13), the other end of the glue melting cylinder (23) is communicated with the inner cavity of the guide post (13), a material pushing punch (16) capable of axially reciprocating is arranged in the guide post (13), and the melt entering the guide post (13) is pushed from the injection nozzle (11) by the material pushing punch (16) under the action of a material pushing power element 11) And (4) extruding.

2. The independent injection apparatus of a plural component injection molding machine according to claim 1, characterized in that: the pushing power element comprises a connecting sleeve (15) arranged at one end of the guide post (13) and a hydraulic cylinder body (18) connected to one end of the connecting sleeve (15), an ejection push rod (17) is movably arranged in the hydraulic cylinder body (18), and the ejection push rod (17) is connected with one end of the pushing punch head (16).

3. The independent injection apparatus of a plural component injection molding machine according to claim 1, characterized in that: the outer side of one end of the guide post (13) is in threaded connection with an adjusting nut (14), one end of the adjusting nut (14) is abutted against the connecting sleeve (15) to push the connecting sleeve (15) to lift up and down.

4. The independent injection apparatus of a plural component injection molding machine according to claim 1, characterized in that: one side of the guide post (13) is provided with a connecting flange (21), one end of the glue melting cylinder (23) is communicated with the guide post (13) through the connecting flange (21), and a non-return ring (20) is arranged in the connecting flange (21).

5. The independent injection apparatus of a plural component injection molding machine according to claim 4, characterized in that: the end part of the connecting flange (21) is embedded with a positioning sleeve (22), the non-return ring (20) is pressed by the positioning sleeve (22), and one end of the glue injection screw rod (24) is inserted into the positioning sleeve (22).

6. The independent injection apparatus of a plural component injection molding machine according to claim 1, characterized in that: the guide post (13) is arranged on the injection platform moving plate (12).

7. The independent injection apparatus of a plural component injection molding machine according to claim 1, characterized in that: the power unit (27) is a hydraulic motor and is connected with a molten rubber cylinder fixing seat (25) at one end of a molten rubber cylinder (23) through a motor connecting seat (26), and a transmission shaft (28) used for connecting the hydraulic motor and a rubber injection screw (24) is arranged inside the motor connecting seat (26).