WO2022247223A1

WO2022247223A1 - High-lubrication and low-wear injection molding machine single-cylinder injection mechanism and injection molding machine having structure

Info

Publication number: WO2022247223A1
Application number: PCT/CN2021/136953
Authority: WO
Inventors: 李君�; 张贤宝; 张�雄; 林娅丹
Original assignee: 西诺控股集团有限公司
Priority date: 2021-05-24
Filing date: 2021-12-10
Publication date: 2022-12-01
Also published as: CN113199721A

Abstract

The present invention relates to the technical field of injection molding machines, and in particular to a high-lubrication and low-wear injection molding machine single-cylinder injection mechanism and an injection molding machine having the structure. For the problem in the prior art that no lubricating space is formed in an injection molding machine injection structure such that lubricating cannot be performed, the present invention provides the high-lubrication and low-wear injection molding machine single-cylinder injection mechanism and the injection molding machine having the structure. The high-lubrication and low-wear injection molding machine single-cylinder injection mechanism comprises an injection table base and a body; a driving mechanism is connected to one end of the body; a bearing shaft is provided in the body; an output transition shaft is in driving connection with the driving mechanism; one end of the output transition shaft extends into the body and is in driving connection with the bearing shaft; a lubricating assembly connected to the body is further comprised; a lubricating space capable of containing lubricating oil is formed in the lubricating assembly; and the connecting point of the output transition shaft and the bearing shaft is located in the lubricating space. The present invention is good in lubricating effect, can reduce the wear degree between the output transition shaft and the bearing shaft, and prolongs the service life.

Description

High-lubrication and low-wear injection molding machine single-cylinder injection mechanism and injection molding machine with this structure

technical field

The invention belongs to the technical field of injection molding machines, and in particular relates to a single-cylinder injection mechanism of a high-lubrication and low-wear injection molding machine and an injection molding machine with the structure.

Background technique

Injection molding machine is also known as injection molding machine or injection machine. It is the main molding equipment for making thermoplastics or thermosetting plastics into various shapes of plastic products using plastic molding molds. The injection part of the injection molding machine is the core and important component of whether the whole injection molding machine can produce good products. However, when the bearing shaft and the output transition shaft or the motor drive shaft are working, the bearing shaft and the output transition shaft or the motor drive shaft must cooperate. Simultaneously carry out left and right reciprocating motion and counterclockwise rotation motion. The injection structure of the injection molding machine in the prior art does not have a lubrication space inside, so it cannot be lubricated, and the splines used for transmission will be severely worn and the service life will be short. For example, a Chinese utility model patent discloses a single-cylinder injection mechanism of an injection molding machine [application number: 201821220640.3]. The utility model patent includes an injection molding device and an injection injection mechanism. Box and motor, the bottom of the injection molding mechanism is fixed with a fixed table, the other side of the upper surface of the fixed table is fixed with a motor, one end of the motor is fixed with a transmission box, one side of the transmission box The top is fixed with a hopper, the bottom edge of the hopper is fixed with a limit protrusion, one side of the transmission box is connected with a screw, the outer surface of the screw is fitted with a screw sleeve, and the screw sleeve The other side is fixedly arranged on the transmission box, one side of the screw sleeve is provided with an injection nozzle, and one side surface of the fixed table is fixedly provided with a screw sleeve support, and the screw sleeve support is fixedly arranged on the screw sleeve. Directly below; the outer surface of the screw sleeve is fixedly provided with a preheating sleeve, the inner side of the preheating sleeve is fixedly provided with a mica sheet, the surface of the mica sheet is fixedly provided with a heating wire, and the injection molding device includes a pushing device , an injection molding model, a fixed base, a blanking box and a junction box, the other side of the upper surface of the fixed base is provided with a junction box, one side of the upper surface of the fixed base is provided with a blanking box, and the blanking box An injection mold is arranged directly above the box, and a pushing device is arranged on one side of the injection mold.

This utility model patent has the advantage of being convenient to replace hoppers of different volumes before use, and also convenient to disassemble and clean the hopper after use, but it still does not solve the above problems.

Contents of the invention

The purpose of the present invention is to solve the above problems and provide a high-lubrication and low-wear injection molding machine single-cylinder injection mechanism with good lubrication effect, low wear degree and long service life.

Another object of the present invention is to solve the above problems and provide an injection molding machine with a single-cylinder injection mechanism with good lubrication effect, low wear and long service life.

To achieve the above object, the present invention adopts the following technical solutions:

A single-cylinder injection mechanism for a high-lubrication and low-wear injection molding machine, including an injection platform base and a main body installed on the injection platform base. One end of the main body is connected to a driving mechanism, and a bearing shaft is arranged inside the main body. The driving mechanism The drive is connected with an output transition shaft. One end of the output transition shaft extends into the main body and is drivingly connected with the bearing shaft. It also includes a lubricating assembly connected to the main body. The lubricating assembly has a lubricating space that can hold lubricating oil. The output The connection point between the transition shaft and the bearing shaft is located in the lubricating space.

In the above-mentioned high-lubrication and low-wear injection molding machine single-cylinder injection mechanism, the lubricating assembly includes a lubricating sleeve fixedly connected to the main body, one end of the lubricating sleeve is provided with a first sealing sleeve, and the other end is provided with a second sealing sleeve. sleeve, the lubricating space is located between the first sealing sleeve and the second sealing sleeve, the end of the output transition shaft passes through the first sealing sleeve and extends into the lubricating space, and the end of the bearing shaft passes through the second The second sealing sleeve extends into the lubricating space.

In the above-mentioned high-lubrication and low-wear injection molding machine single-cylinder injection mechanism, the lubricating sleeve includes an integrally formed pipe body and an oil inlet plate, the lubricating space fits the inner surface of the pipe body, and the oil inlet plate is located on the pipe body. One end of the body, the oil inlet pan is provided with an oil inlet pipe, one end of the oil inlet pipe runs through the upper half of the side wall of the oil inlet pan, and the other end communicates with the lubricating space.

In the above-mentioned single-cylinder injection mechanism of high-lubrication and low-wear injection molding machine, the first sealing sleeve includes a sealing sleeve main body, the inner surface of the sealing sleeve main body fits the surface of the output transition shaft, and the sealing sleeve main body is provided with a The oil inlet hole connected to the oil inlet pipe, the inner surface of the main body of the sealing sleeve has a first oil inlet ring, an oil guide channel and a second oil inlet ring that are recessed into the main body of the seal sleeve, and the first oil inlet ring passes through the oil guide channel It communicates with the second oil inlet ring, the first oil inlet ring communicates with the oil inlet hole, and the second oil inlet ring communicates with the lubricating space.

In the above-mentioned high-lubrication and low-wear single-cylinder injection mechanism of the injection molding machine, the communication point between the oil inlet hole and the first oil inlet ring and the communication point between the oil guide channel and the first oil inlet ring are mutually misaligned, and the Several oil guiding passages are provided and evenly distributed along the inner surface of the main body of the sealing sleeve in the circumferential direction.

In the above-mentioned high-lubrication and low-wear injection molding machine single-cylinder injection mechanism, the oil inlet pipe communicates with the oil inlet hole through an oil-passing groove, and the oil-passing groove is arranged on the inner surface of the oil inlet plate and extends toward the inlet The inside of the oil pan is concave, and the extending direction of the oil passing groove is parallel to the axial direction of the oil inlet pan.

In the single-cylinder injection mechanism of the above-mentioned high-lubrication and low-wear injection molding machine, the oil inlet pan is also provided with an oil overflow pipe, one end of the oil overflow pipe runs through the lower half of the side wall of the oil inlet pan, and the other end passes through the overflow The groove communicates with the lubricating space, and the overflow groove is attached to the outer surface of the first sealing sleeve.

In the above-mentioned high-lubricating and low-wearing injection molding machine single-cylinder injection mechanism, the driving mechanism includes a reducer, and the reducer is drivingly connected to the output transition shaft, and the output transition shaft is connected to the bearing shaft through a spline.

In the above-mentioned single-cylinder injection mechanism of the high-lubrication and low-wear injection molding machine, a motor drive shaft is further provided between the output transition shaft and the bearing shaft.

An injection molding machine includes an injection molding machine casing, and the above-mentioned high-lubrication and low-wear injection molding machine single-cylinder injection mechanism is arranged in the injection molding machine casing.

Compared with the prior art, the present invention has the advantages of:

1. The present invention is provided with a lubricating space in the main body, and the connecting point between the output transition shaft and the bearing shaft is located in the lubricating space. When in use, the lubricating oil in the lubricating space can be realized between the output transition shaft and the bearing shaft through the connecting point. The lubricated connection reduces the degree of wear between the output transition shaft and the bearing shaft and prolongs the service life.

2. The structure of the present invention is simple, the modification degree of the injection molding machine in the prior art is low, the modification cost is low, and the way of adding lubricating oil is simple and convenient.

Description of drawings

Fig. 1 is the perspective view of embodiment 1;

Fig. 2 is the sectional view of embodiment 1;

Fig. 3 is the structural representation of lubricating assembly;

Fig. 4 is the perspective view of part structure of lubricating assembly;

Fig. 5 is a structural schematic diagram of the first sealing sleeve;

Fig. 6 is the sectional view of embodiment 2;

In the figure: injection platform base 1, main body 2, driving mechanism 3, output transition shaft 4, bearing shaft 5, lubricating component 6, lubricating space 7, connection point 8, motor drive shaft 9, reducer 31, lubricating sleeve 61 , the first seal sleeve 62, the second seal sleeve 63, the pipe body 611, the oil inlet plate 612, the oil inlet pipe 613, the oil passage groove 614, the oil overflow pipe 615, the overflow groove 616, the seal sleeve main body 621, the oil inlet The hole 622 , the first oil inlet ring 623 , the oil guide channel 624 , and the second oil inlet ring 625 .

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Example 1

This embodiment provides a single-cylinder injection mechanism for a high-lubrication and low-wear injection molding machine, as shown in Figure 1 and Figure 2, including an injection platform base 1 and a main body 2 installed on the injection platform base 1, one end of the main body 2 is connected to There is a driving mechanism 3, the main body 2 is provided with a bearing shaft 5, the driving mechanism 3 is drivingly connected with an output transition shaft 4, one end of the output transition shaft 4 extends into the main body 2 and is drivingly connected with the bearing shaft 5, and also includes The lubricating assembly 6 connected to the main body 2 has a lubricating space 7 which can contain lubricating oil, and the connection point 8 between the output transition shaft 4 and the bearing shaft 5 is located in the lubricating space 7 . Wherein, the driving mechanism 3 may include a speed reducer 31, and the speed reducer 31 is in drive connection with the output transition shaft 4, and the drive connection between the output transition shaft 4 and the bearing shaft 5 can be achieved through a spline.

In the present invention, when in use, the drive mechanism 3 is started, the reducer 31 drives the output transition shaft 4 to rotate, the output transition shaft 4 drives the bearing shaft 5, and the lubricating oil in the lubricating space 7 penetrates into the output through the connection point 8 located in the lubricating space 7 Between the transition shaft 4 and the bearing shaft 5 to achieve lubrication. Therefore, the present invention is provided with a lubricating space 7 in the main body 2, and the connecting point 8 between the output transition shaft 4 and the bearing shaft 5 is located in the lubricating space 7. When in use, the lubricating oil in the lubricating space 7 can be output through the connecting point 8 The lubricated connection between the transition shaft 4 and the bearing shaft 5 reduces the degree of wear between the output transition shaft 4 and the bearing shaft 5 and prolongs the service life.

As shown in FIG. 2 and FIG. 3 , the lubricating assembly 6 includes a lubricating sleeve 61 fixedly connected to the main body 2 , and the lubricating sleeve 61 is provided with a first sealing sleeve 62 at one end and a second sealing sleeve at the other end. 63, the lubricating space 7 is located between the first sealing sleeve 62 and the second sealing sleeve 63, the end of the output transition shaft 4 passes through the first sealing sleeve 62 and extends into the lubricating space 7, the bearing shaft The end of 5 passes through the second sealing sleeve 63 and extends into the lubricating space 7 . The lubricating sleeve 61 , the first sealing sleeve 62 and the second sealing sleeve 63 can ensure that the lubricating space 7 is in a relatively sealed state, preventing the lubricating oil in the lubricating space 7 from leaking out.

Specifically, the lubricating sleeve 61 includes an integrally formed pipe body 611 and an oil inlet plate 612, the lubricating space 7 fits the inner surface of the pipe body 611, and the oil inlet plate 612 is located at one end of the pipe body 611. The oil inlet pan 612 is provided with an oil inlet pipe 613, and one end of the oil inlet pipe 613 runs through the upper half of the side wall of the oil inlet pan 612, which can ensure that the oil inlet pipe 613 is in an upwardly inclined state, which is convenient for lubricating oil. Join, and the other end communicates with the lubrication space 7.

3-5, the first sealing sleeve 62 includes a sealing sleeve main body 621, the inner surface of the sealing sleeve main body 621 fits the surface of the output transition shaft 4, and the sealing sleeve main body 621 is provided with a The pipeline 613 is connected to the oil inlet hole 622, and the inner surface of the sealing sleeve main body 621 has a first oil inlet ring 623, an oil guide channel 624 and a second oil inlet ring 625, which are recessed to the inside of the sealing sleeve main body 621. The ring 623 communicates with the second oil inlet ring 625 through the oil guide channel 624 , the first oil inlet ring 623 communicates with the oil inlet hole 622 , and the second oil inlet ring 625 communicates with the lubricating space 7 .

When in use, lubricating oil is added through the oil inlet pipe 613, and the lubricating oil enters the lubricating space 7 through the oil inlet pipe 613, the oil inlet hole 622, the first oil inlet ring 623, the oil guide channel 624 and the second oil inlet ring 625 Inside.

Preferably, the communication point between the oil inlet hole 622 and the first oil inlet ring 623 and the communication point between the oil guide channel 624 and the first oil inlet ring 623 are mutually offset, and the oil guide channel 624 is provided with several And they are evenly distributed along the circumferential direction of the inner surface of the sealing sleeve main body 621 . This can prevent the lubricating space 7 from being communicated with the oil inlet pipeline 613 as a straight passage, and ensure the sealing effect while refueling smoothly, and play the effect similar to a one-way valve.

Preferably, the oil inlet pipe 613 communicates with the oil inlet hole 622 through an oil passage groove 614, and the oil passage groove 614 is arranged on the inner surface of the oil inlet pan 612 and is recessed toward the inside of the oil inlet pan 612, so that The extending direction of the oil passing groove 614 is parallel to the axial direction of the oil inlet pan 612 . Similarly, this is also to prevent the lubricating space 7 from connecting with the oil inlet pipe 613 in a straight channel, so as to ensure the sealing effect while smoothly refueling, and play a role similar to a one-way valve.

As shown in Figure 4, an oil overflow pipe 615 is also provided on the oil inlet pan 612, and one end of the oil overflow pipe 615 runs through the lower half of the side wall of the oil inlet pan 612, which can ensure that the oil overflow pipe 615 is in a direction The downwardly inclined state facilitates the discharge of lubricating oil, and the other end communicates with the lubricating space 7 through the overflow groove 616 , and the overflow groove 616 is in contact with the outer surface of the first sealing sleeve 62 . The liquid level of the lubricating oil in the lubricating space 7 is controlled by using the overflow groove 616 and the oil overflow pipe 615, that is, the amount of the lubricating oil in the lubricating space 7 is controlled within an appropriate range. When the amount of lubricating oil is too much, the lubricating oil in the lubricating space 7 will flow out through the overflow groove 616 and the oil overflow pipe 615 in sequence.

The working principle of the present invention is: when in use, lubricating oil is added through the oil inlet pipe 613, and the lubricating oil passes through the oil inlet pipe 613, the oil passage groove 614, the oil inlet hole 622, the first oil inlet ring 623, and the oil guide channel in sequence 624 and the second oil inlet ring 625 enter into the lubricating space 7 . When the amount of lubricating oil is too much, the lubricating oil in the lubricating space 7 will flow out through the overflow groove 616 and the oil overflow pipe 615 in sequence. Restart the driving mechanism 3, the reducer 31 drives the output transition shaft 4 to rotate, the output transition shaft 4 drives the bearing shaft 5, and the lubricating oil in the lubrication space 7 penetrates into the output transition shaft 4 and the bearing through the connection point 8 located in the lubrication space 7 between shafts 5 for lubrication. Therefore, the present invention is provided with a lubricating space 7 in the main body 2, and the connecting point 8 between the output transition shaft 4 and the bearing shaft 5 is located in the lubricating space 7. When in use, the lubricating oil in the lubricating space 7 can be output through the connecting point 8 The lubricated connection between the transition shaft 4 and the bearing shaft 5 reduces the degree of wear between the output transition shaft 4 and the bearing shaft 5 and prolongs the service life.

Example 2

This embodiment provides a high-lubrication and low-wear injection molding machine single-cylinder injection mechanism. Its specific structure is basically the same as that in Embodiment 1, the only difference is that it also has a motor drive shaft 9, as shown in FIG. 6 , so A motor transmission shaft 9 is also provided between the output transition shaft 4 and the bearing shaft 5 .

Example 3

This embodiment provides an injection molding machine, as shown in Figures 1-6, including an injection molding machine housing, and the injection molding machine housing is provided with the high-lubrication and low-wear injection molding machine single-cylinder injection molding machine described in Embodiment 1 or Embodiment 2. mechanism.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Although this paper uses a lot of injection platform base 1, main body 2, driving mechanism 3, output transition shaft 4, bearing shaft 5, lubrication assembly 6, lubrication space 7, connection point 8, motor transmission shaft 9, reducer 31, Lubricating sleeve 61, first sealing sleeve 62, second sealing sleeve 63, pipe body 611, oil inlet plate 612, oil inlet pipe 613, oil passage groove 614, oil overflow pipe 615, overflow groove 616, sealing sleeve main body 621, oil inlet hole 622, first oil inlet ring 623, oil guide channel 624, second oil inlet ring 625 and other terms, but the possibility of using other terms is not excluded. These terms are used only for the purpose of describing and explaining the essence of the present invention more conveniently; interpreting them as any kind of additional limitation is against the spirit of the present invention.

Claims

A single-cylinder injection mechanism of a high-lubrication and low-wear injection molding machine, comprising an injection platform base (1) and a main body (2) installed on the injection platform base (1), one end of the main body (2) is connected with a driving mechanism (3 ), characterized in that: the main body (2) is provided with a bearing shaft (5), the drive mechanism (3) is driven and connected with an output transition shaft (4), and one end of the output transition shaft (4) extends to the main body ( 2) and drive-connected with the bearing shaft (5), and also includes a lubricating assembly (6) connected to the main body (2), the lubricating assembly (6) has a lubricating space (7) that can hold lubricating oil, so The connection point (8) between the output transition shaft (4) and the bearing shaft (5) is located in the lubricating space (7).
The high-lubrication and low-wear injection molding machine single-cylinder injection mechanism according to claim 1, characterized in that: the lubricating assembly (6) includes a lubricating sleeve (61) fixedly connected to the main body (2), and the lubricating sleeve One end of the pipe (61) is provided with a first sealing sleeve (62), and the other end is provided with a second sealing sleeve (63). The lubrication space (7) is located between the first sealing sleeve (62) and the second sealing sleeve (63). Between, the end of the output transition shaft (4) passes through the first sealing sleeve (62) and extends into the lubricating space (7), and the end of the bearing shaft (5) passes through the second sealing sleeve ( 63) and extend into the lubricating space (7).
The high-lubrication and low-wear injection molding machine single-cylinder injection mechanism according to claim 2, characterized in that: the lubricating sleeve (61) includes an integrally formed pipe body (611) and an oil inlet plate (612), and the lubricating The space (7) fits the inner surface of the pipe body (611), the oil inlet pan (612) is located at one end of the pipe body (611), and the oil inlet pan (612) is provided with an oil inlet pipe (613), One end of the oil inlet pipe (613) runs through the upper half of the side wall of the oil inlet pan (612), and the other end communicates with the lubricating space (7).
The single-cylinder injection mechanism of high-lubrication and low-wear injection molding machine according to claim 3, characterized in that: the first sealing sleeve (62) includes a sealing sleeve main body (621), and the inner surface of the sealing sleeve main body (621) Fitted with the surface of the output transition shaft (4), the main body of the sealing sleeve (621) is provided with an oil inlet hole (622) connected with the oil inlet pipe (613), and the inner surface of the main body of the sealing sleeve (621) has a The first oil inlet ring (623), the oil guide passage (624) and the second oil inlet ring (625) are recessed inside the main body (621), and the first oil inlet ring (623) is connected with the oil guide passage (624) The second oil inlet ring (625) communicates with each other, the first oil inlet ring (623) communicates with the oil inlet hole (622), and the second oil inlet ring (625) communicates with the lubricating space (7).
The high-lubrication and low-wear injection molding machine single-cylinder injection mechanism according to claim 4, characterized in that: the communication point between the oil inlet hole (622) and the first oil inlet ring (623) and the oil guide channel (624) The points of communication with the first oil inlet ring (623) are mutually misaligned, and several oil guide passages (624) are provided and evenly distributed along the inner surface of the seal sleeve main body (621) in the circumferential direction.
The single-cylinder injection mechanism of high-lubrication and low-wear injection molding machine according to claim 4, characterized in that: the oil inlet pipe (613) communicates with the oil inlet hole (622) through an oil passage groove (614), The oil passing groove (614) is arranged on the inner surface of the oil inlet pan (612) and is recessed toward the inside of the oil inlet pan (612). The axes are parallel to each other.
The high-lubrication and low-wear injection molding machine single-cylinder injection mechanism according to claim 4, characterized in that: the oil inlet pan (612) is also provided with an oil overflow pipe (615), and one end of the oil overflow pipe (615) It runs through the lower half of the side wall of the oil inlet pan (612), and the other end communicates with the lubricating space (7) through the overflow groove (616). Face to face.
The high-lubrication and low-wear injection molding machine single-cylinder injection mechanism according to claim 1, characterized in that: the drive mechanism (3) includes a reducer (31), and the reducer (31) is connected to the output transition shaft (4) Drive connection, the output transition shaft (4) is connected with the bearing shaft (5) through a spline.
The single-cylinder injection mechanism of a high-lubrication and low-wear injection molding machine according to claim 1, characterized in that: a motor transmission shaft (9) is also provided between the output transition shaft (4) and the bearing shaft (5).
An injection molding machine, comprising a casing of the injection molding machine, characterized in that: the casing of the injection molding machine is provided with a high-lubrication and low-wear injection molding machine single-cylinder injection mechanism according to any one of claims 1-9.