CN219055217U

CN219055217U - Ejection mechanism of full-electric injection molding machine

Info

Publication number: CN219055217U
Application number: CN202222581611.2U
Authority: CN
Inventors: 徐朝剑; 刘俊; 余宜邦
Original assignee: Hongzheng Liansu Zhejiang Machinery Co ltd
Current assignee: Hongzheng Liansu Zhejiang Machinery Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-05-23
Anticipated expiration: 2032-09-29

Abstract

The embodiment of the utility model provides an ejection mechanism of an all-electric injection molding machine, which comprises an ejection fixing plate and a guide rod, wherein the ejection fixing plate is fixedly connected with the injection molding machine, a screw rod controlled by a transmission mechanism is rotationally connected to the ejection fixing plate, an ejector plate is slidably arranged on the guide rod, a plurality of ejector rods are fixedly arranged on the ejector plate, and the ejection mechanism also comprises a sleeve fixedly connected with the ejector plate, and the sleeve is in threaded connection with the screw rod. The belt wheel of the control screw rod is arranged on the outer side of the fixed plate, so that the belt or the belt wheel can be conveniently replaced, meanwhile, as the sleeve is arranged at the position of the center rod of the thimble, the center rod of the thimble is replaced by a certain length, the travel of the thimble in the limited space of the injection molding machine is increased, and the upper limit of the die opening travel is improved.

Description

Ejection mechanism of full-electric injection molding machine

Technical Field

The utility model relates to the technical field of injection molding machines, in particular to an ejection mechanism of an all-electric injection molding machine.

Background

Injection molding machines are also known as injection molding machines or injection molding machines. It is a main forming equipment for making thermoplastic plastics or thermosetting plastics into various shaped plastic products by using plastic forming mould. The ejection mechanism is one of important components of the injection molding machine and mainly used for ejecting and falling out of a mold cavity in a workpiece. Important parameters of the ejection mechanism include: and (5) opening the die stroke and the ejection force. The mold opening stroke is the distance necessary for the mold to open and remove the injection molded part, and is related to the size of the injection molded part. The existing ejection mechanism is characterized in that a driving belt wheel is arranged between a fixed plate and an ejector plate, the maximum die opening stroke is limited in a limited space, and the belt and the corresponding belt wheel are not easy to replace.

Disclosure of Invention

The utility model aims to provide an ejection mechanism of an all-electric injection molding machine, which solves the problems that the maximum mold opening stroke is short and the belt wheel thereof are not easy to replace in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the injection molding machine comprises an ejection fixing plate and a guide rod, wherein the ejection fixing plate is fixedly connected with the injection molding machine, a screw rod controlled by a transmission mechanism is rotationally connected to the ejection fixing plate, an ejector plate is slidably arranged on the guide rod, a plurality of ejector rods are fixedly arranged on the ejector plate, the injection molding machine further comprises a sleeve fixedly connected with the ejector plate, and the sleeve is in threaded connection with the screw rod.

Preferably, the transmission mechanism comprises a motor fixedly connected with the injection molding machine, a belt wheel I is fixedly arranged on an output shaft of the motor, a belt wheel II is arranged at one end, far away from the sleeve, of the screw rod, and the belt wheel I is in transmission connection with the belt wheel II through a belt.

Preferably, the screw rod is rotatably connected with the ejection fixing plate through a bearing bush.

Preferably, the tail end of the sleeve is fixedly provided with a thimble center rod.

Preferably, a fixing block is arranged at one end of the guide rod, which is close to the ejection fixing plate, and the fixing block is fixedly connected with the injection molding machine.

Preferably, the guide rod is rotatably connected with the thimble plate through a sleeve piece.

Preferably, the thimble plate is provided with a pressing plate corresponding to the sleeve piece.

Preferably, a pulley cover plate is arranged on the outer side of the pulley.

Preferably, the motor is fixedly connected with the injection molding machine through a motor fixing plate.

The utility model has the beneficial effects that:

the belt wheel of the control screw rod is arranged at the outer side of the fixed plate, so that the belt or the belt wheel can be conveniently replaced, meanwhile, as the sleeve is arranged at the position of the original thimble rod and replaces the original thimble rod by a certain length, the travel of the thimble in the limited space of the injection molding machine is increased, and the upper limit of the die opening travel is improved.

Drawings

Reference numerals illustrate:

FIG. 1 is a schematic diagram of a conventional ejection mechanism;

FIG. 2 is a schematic view of an external structure of an embodiment of the present utility model;

FIG. 3 is a front view of an embodiment of the present utility model;

FIG. 4 is a bottom view of an embodiment of the present utility model

Fig. 5 is a sectional view taken along the direction A-A of fig. 3.

1. A screw rod; 2. ejecting the fixing plate; 3. a needle ejection plate; 4. a bearing bush; 5. a belt wheel II; 6. a pressing plate; 7. a guide rod; 8. a motor fixing plate; 9. a belt wheel I; 10. a thimble rod; 11. a sleeve; 12. a center rod of the thimble; 13. a pulley cover plate; 14. a fixed block; 15. a sleeve piece; 16. a motor; 17. a belt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 2-5, an embodiment of the present utility model provides an ejector mechanism of an all-electric injection molding machine, including an ejector fixing plate 2 fixedly connected with the injection molding machine, a pair of guide rods 7, and an ejector plate 3, wherein a screw rod 1 controlled by a transmission mechanism is rotationally connected on the ejector fixing plate 2, the ejector plate 3 is slidably connected with the pair of guide rods 7, so that the ejector plate 3 can move along the guide rods 7 under the driving of the screw rod 1, a plurality of ejector rods 10 are uniformly arranged on one side of the ejector plate 3, the embodiment further includes a sleeve 11 fixedly connected with the center of the ejector plate 3, the sleeve 11 is in threaded connection with the screw rod 1, and the sleeve can replace the action of a part of the ejector rods 10, so that more space for the ejector rods 10 to move can be saved.

The transmission mechanism comprises a motor 16 fixedly connected with the injection molding machine, a belt wheel I9 is fixedly arranged on an output shaft of the motor 16, a belt wheel II 5 is arranged at one end, far away from the sleeve 11, of the screw rod 1, the belt wheel I9 is in transmission connection with the belt wheel II 5 through a belt 17, and accordingly the screw rod 1 is driven to rotate to push the sleeve 11, and the ejector plate 3 is driven to push forwards along the guide rod 7.

The ejection fixing plate 2 is rotatably connected with the screw rod 1 through the bearing bush 4, so as to reduce friction between the screw rod 1 and the ejection fixing block 14.

The tail end of the sleeve 11 is fixedly provided with a thimble center rod 12, so that the thimble center rod can be ejected forwards as other thimble rods 10.

The guide rod 7 is provided with a fixed block 14 near one end of the ejection fixed plate 2, and the fixed block 14 is fixedly connected with the injection molding machine and used for fixing the guide rod 7.

The thimble plate 3 is rotatably connected with the guide rod through a copper sleeve piece 15, so that friction can be effectively reduced, energy sources are saved, device loss is reduced, and a pressing plate 6 is fixed on the installation surface of the thimble plate to prevent the sleeve piece 15 from slipping.

The outer side of the first belt pulley 9 is provided with a belt pulley cover plate 13 so as to improve safety.

The motor 16 is fixedly provided with a motor fixing plate 8, and the motor 16 is fixedly connected with the injection molding machine through the motor fixing plate 8.

The working principle of the utility model is as follows:

when the embodiment works, the motor 16 is started, the motor 16 drives the screw rod 1 to rotate through the conveying belt, and the screw rod 1 is in threaded connection with the sleeve 11, the sleeve 11 cannot rotate in a fixed mode, the screw rod 1 pushes the sleeve 11 to move and drives the ejector plate 3 to move forwards, and the ejector pins on the ejector plate 3 push workpieces produced on the injection molding machine to fall. According to the embodiment, the screw rod 1 in the prior art is moved to estimate the thimble, the screw rod 1 is changed into a pivot pushing sleeve rod to push the thimble, the position of the screw rod 1 replaces the position of the original center thimble, and therefore a larger ejection stroke can be achieved in a limited space of the injection molding machine.

When the belt 17 is required to be replaced, the belt 17 is more convenient to replace than the original ejection mechanism because the belt 17 is arranged at the outer side part of the embodiment, and meanwhile, only pulleys with different sizes are required to be replaced when the thrust of the ejection fixing plate 2 is required to be changed.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides an all-electric injection molding machine ejection mechanism, include with injection molding machine fixed connection's ejecting fixed plate (2) and guide arm (7), rotate on ejecting fixed plate (2) and be connected with lead screw (1) that receive drive mechanism control, slide on guide arm (7) and be equipped with thimble board (3), fixed a plurality of thimble poles (10) that are equipped with on thimble board (3), its characterized in that: the novel screw rod structure further comprises a sleeve (11) fixedly connected with the thimble plate (3), and the sleeve (11) is in threaded connection with the screw rod (1).

2. An all-electric injection molding machine ejection mechanism as in claim 1, wherein: the transmission mechanism comprises a motor (16) fixedly connected with the injection molding machine, a belt wheel I (9) is fixedly arranged on an output shaft of the motor (16), a belt wheel II (5) is arranged at one end, far away from the sleeve (11), of the screw rod (1), and the belt wheel I (9) is in transmission connection with the belt wheel II (5) through a belt (17).

3. An all-electric injection molding machine ejection mechanism as in claim 1, wherein: the screw rod (1) is rotationally connected with the ejection fixing plate (2) through a bearing bushing (4).

4. An all-electric injection molding machine ejection mechanism as in claim 1, wherein: the tail end of the sleeve (11) is fixedly provided with a thimble center rod (12).

5. An all-electric injection molding machine ejection mechanism as in claim 1, wherein: one end of the guide rod (7) close to the ejection fixing plate (2) is provided with a fixing block (14), and the fixing block (14) is fixedly connected with the injection molding machine.

6. An all-electric injection molding machine ejection mechanism as in claim 1, wherein: the guide rod (7) is rotationally connected with the thimble plate (3) through a sleeve piece (15).

7. An all-electric injection molding machine ejection mechanism as in claim 6, wherein: the thimble plate (3) is provided with a pressing plate (6) corresponding to the sleeve piece (15).

8. An all-electric injection molding machine ejection mechanism as in claim 2, wherein: and a belt wheel cover plate (13) is arranged on the outer side of the belt wheel I (9).

9. An all-electric injection molding machine ejection mechanism as in claim 2, wherein: the motor (16) is fixedly connected with the injection molding machine through a motor fixing plate (8).