CN111016099A

CN111016099A - Injection molding machine

Info

Publication number: CN111016099A
Application number: CN201911411937.7A
Authority: CN
Inventors: 董必成
Original assignee: Haiyan Meilongda Technology Co Ltd
Current assignee: Haiyan Meilongda Technology Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-04-17

Abstract

The invention discloses an injection molding machine, which comprises an injection device and a mold closing device, wherein the injection device comprises a machine barrel, a screw rod, a hopper, a motor and a heater attached to the machine barrel, the mold closing device comprises a fixed mold seat provided with a fixed mold and a movable mold seat provided with a movable mold, a pull rod inserted into and penetrating through the movable mold seat is arranged on the fixed mold seat, the movable mold seat is connected to the pull rod in a sliding manner, the fixed mold seat is hinged with a first pull arm, the first pull arm is hinged with a second pull arm hinged with the movable mold seat, a third pull arm arranged on the first pull arm is arranged at the hinged position of the first pull arm and the second pull arm, a push-pull plate is arranged on the third pull arm, and a linear reciprocating mechanism for controlling the push-pull plate to move back and forth is arranged on the push-pull plate. The injection molding machine has the characteristic of labor saving in demolding, the machine barrel is fast to heat, the plastic melting efficiency is high, the subsequent injection molding is convenient, the overall function is complete, and the practicability is high.

Description

Injection molding machine

Technical Field

The invention relates to the technical field of injection molding machines, in particular to an injection molding machine.

Background

An injection molding machine is also known as an injection molding machine or an injection machine. The main forming equipment for making various shapes of plastic products from thermoplastic plastics or thermosetting plastics by using plastic forming dies is divided into vertical, horizontal and full-electric types. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

The existing injection molding machine is provided with a plurality of integrated die-closing mechanisms convenient for demolding, which are mainly realized by linear reciprocating motion mechanisms, and have the disadvantages of large thrust and traction force, large energy consumption, difficult opening and closing and poor overall effect; in addition, in order to increase the product yield, the speed of melting the plastic also determines the product yield, so efficient heating is one of the problems to be solved.

Accordingly, the invention provides an injection molding machine.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide the injection molding machine which has the characteristic of labor saving in demoulding, and the machine barrel is fast in heating, high in plastic melting efficiency and convenient for subsequent injection molding.

In order to solve the technical problem, the invention aims to realize that: the invention relates to an injection molding machine, which comprises an injection device and a mold closing device, wherein the injection device comprises a machine barrel, a screw rod, a hopper, a motor and a heater attached to the machine barrel, the mold closing device comprises a fixed mold seat provided with a fixed mold and a movable mold seat provided with a movable mold, a pull rod inserted into and penetrating through the movable mold seat is arranged on the fixed mold seat, the movable mold seat is connected to the pull rod in a sliding manner, the fixed mold seat is hinged with a first pull arm, the first pull arm is hinged with a second pull arm hinged with the movable mold seat, a third pull arm arranged on the first pull arm is arranged at the hinge joint of the first pull arm and the second pull arm, a push-pull plate is arranged on the third pull arm, and a linear reciprocating mechanism for controlling the push-pull plate to move back and forth is arranged on the push-pull plate.

The invention is further configured to: the heater includes a plurality of end to end and is the aluminum sheet main part of "S" form, and the aluminum sheet main part is followed the axial extension of barrel, the outer wall at the barrel is established in the subsides of aluminum sheet main part, the aluminum sheet main part forms the unified first side groove of notch and second side groove, first side groove and second side inslot inlay respectively and are equipped with the PTC heating member, the PTC heating member respectively with the laminating of the interior cell wall in first side groove and second side groove.

The invention is further configured to: the hopper is provided with a visible window extending from bottom to top.

The invention is further configured to: and the visible window is provided with scale marks.

The invention is further configured to: the linear reciprocating mechanism is a hydraulic oil cylinder.

In conclusion, the invention has the following beneficial effects: according to the injection molding machine, the lever principle is additionally arranged on the linear push-pull mechanism, so that the length of the force arm is increased, but the force application requirement is reduced, the mold opening and closing are labor-saving, and the operation is convenient; and adopt novel heater structure, improve heating efficiency, the plastics melting in the barrel for a short time makes things convenient for follow-up injection moulding, and it is nimble convenient to use, and overall function is perfect, and the practicality is strong.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a portion of the present invention;

FIG. 3 is a schematic view of the overall structure of the present invention for embodying a heater;

FIG. 4 is a schematic view of a portion of the present invention for embodying a heater;

fig. 5 is a schematic structural diagram of a hopper embodying the present invention.

Detailed Description

In order that those skilled in the art will better understand the novel teachings of the present invention, preferred embodiments of the present invention are described below with reference to specific examples, but it should be understood that these descriptions are only intended to further illustrate the features and advantages of the present invention, and not to limit the patent claims of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention will be further described with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1 to 5, an injection molding machine according to the present embodiment includes an injection unit and a mold clamping unit, the injection device comprises a machine barrel 1, a screw 2, a hopper 3, a motor 4 and a heater 5 attached to the machine barrel 1, the mold closing device comprises a fixed mold base 7 provided with a fixed mold 6 and a movable mold base 9 provided with a movable mold 8, the fixed die holder 7 is provided with a pull rod 10 inserted into and penetrating through the movable die holder, the movable die holder 9 is connected on the pull rod 10 in a sliding manner, the fixed die holder also comprises a fixed tailstock 11, the fixed tailstock 11 is articulated with a first pull arm 12, the first pull arm 12 is articulated with a second pull arm 13 which is also articulated with the movable die holder 9, a third pull arm 14 arranged on the first pull arm 12 is arranged at the hinged position of the first pull arm 12 and the second pull arm 13, a push-pull plate 15 is arranged on the third pull arm 14, and a linear reciprocating mechanism 16 for controlling the push-pull plate 15 to move back and forth is arranged on the push-pull plate 15.

In the embodiment, the push-pull plate 15 is pushed back and forth by the linear reciprocating mechanism 16, and swings together with the third pull arm 14, and the first pull arm 12 and the second pull arm 13 which are hinged to each other are bent due to the connection of the third pull arm 14 and the second pull arm 13, so that the movable die holder 9 is pulled, the movable die holder 9 is separated from the fixed die holder 7, and the die opening is realized; and conversely, mold closing is realized.

The third pull arm 14 is arranged to lengthen the arm of force, so that lever type push-pull is realized, labor is saved, energy is saved, and push-pull is facilitated.

Further, heater 5 includes a plurality of end to end and is the aluminum sheet main part 51 of "S" form, and aluminum sheet main part 51 is followed the axial extension of barrel 1, aluminum sheet main part 51 pastes the outer wall of establishing at barrel 1, aluminum sheet main part 51 forms the unified first side groove 52 of notch and second side groove 53, first side groove 52 and second side groove 52 are inside to inlay respectively and are equipped with PTC heating body 54, PTC heating body 54 respectively with the interior cell wall laminating of first side groove 52 and second side groove 53.

Through aluminum sheet main part 51 as leading the heat source, the heat transfer effect is good to bend into the S column structure that is end to end interconnect, form a plurality of first side grooves 52 and second side groove 53, and its intussuseption establishes PTC heating body 54, make to generate heat effectually, can heat aluminum sheet main part 51 to the settlement temperature in the short-term, and lead the temperature to barrel 1, in order to supply the plastics melting.

Further, visual window 17 that extends from bottom to top has on the hopper 3, makes things convenient for visual operation, is convenient for know remaining material volume in the hopper 3, and the raw materials of being convenient for prepares in advance.

Furthermore, the visual window 17 is provided with scale marks for facilitating measurement.

Further, the linear reciprocating mechanism 16 is a hydraulic oil cylinder, and the hydraulic oil cylinder as the linear reciprocating mechanism has the following advantages: 1. the bearing working pressure is large, and the force application is stable; 2. the fatigue resistance is high, and the impact resistance is high; 3. the service life is long.

According to the injection molding machine, the lever principle is additionally arranged on the linear push-pull mechanism, so that the length of the force arm is increased, but the force application requirement is reduced, the mold opening and closing are labor-saving, and the operation is convenient; and adopt novel heater structure, improve heating efficiency, the plastics melting in the barrel for a short time makes things convenient for follow-up injection moulding, and it is nimble convenient to use, and overall function is perfect, and the practicality is strong.

Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship actually shown, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, it is possible for those skilled in the art to combine the embodiments and understand the specific meanings of the above terms according to specific situations.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the 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.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides an injection molding machine, includes injection unit and closing die device, injection unit includes barrel, screw rod, hopper and motor, still includes the heater of subsides establishing on the barrel, its characterized in that: the mold closing device comprises a fixed mold seat provided with a fixed mold and a movable mold seat provided with a movable mold, wherein a pull rod inserted into and penetrating through the movable mold seat is arranged on the fixed mold seat, the movable mold seat is connected to the pull rod in a sliding manner, the fixed tailstock is hinged with a first pull arm, the first pull arm is hinged with a second pull arm hinged with the movable mold seat, a third pull arm arranged on the first pull arm is arranged at the hinged position of the first pull arm and the second pull arm, a push-pull plate is arranged on the third pull arm, and a linear reciprocating motion mechanism for controlling the push-pull plate to move back and forth is arranged on the push-pull plate.

2. An injection molding machine according to claim 1, wherein: the heater includes a plurality of end to end and is the aluminum sheet main part of "S" form, and the aluminum sheet main part is followed the axial extension of barrel, the outer wall at the barrel is established in the subsides of aluminum sheet main part, the aluminum sheet main part forms the unified first side groove of notch and second side groove, first side groove and second side inslot inlay respectively and are equipped with the PTC heating member, the PTC heating member respectively with the laminating of the interior cell wall in first side groove and second side groove.

3. An injection molding machine according to claim 1 or 2, characterized in that: the hopper is provided with a visible window extending from bottom to top.

4. An injection molding machine according to claim 3, wherein: and the visible window is provided with scale marks.

5. An injection molding machine according to claim 1, wherein: the linear reciprocating mechanism is a hydraulic oil cylinder.