Mixing device of injection molding machine

Abstract

The utility model discloses a mixing device of an injection molding machine, which comprises a mounting rack, a main body is mounted in the mounting rack through bolts, and a stirring component is arranged in the main body; the stirring assembly comprises a motor, and the output end of the motor is provided with a rotating rod through a coupler. By means of the servo motor and the motor, when the servo motor drives the cam to rotate, the cam can jack the lifting plate to rise, the lifting plate can drive the hollow pipe and the movable ring on the outer wall of the hollow pipe to move, the movable ring can drive the stirring plates to gather together inwards under the action of the movable plate, and when the cam rotates continuously under the action of the spring, the stirring plates can rotate continuously. The stirring plates diffuse outwards and gather inwards in a reciprocating mode, so that the stirring efficiency of raw materials is improved when the device stirs the raw materials, the stirring plates can continuously rotate with the rotating rod as the circle center due to the arrangement of the motor, the rotating rod, the fixing ring and the connecting plate, and therefore the structure is perfected, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, and particularly relates to a material mixing device for an injection molding machine. Background Technique

[0002] An injection molding machine, also known as an injection molding machine or an injection machine, is the main molding equipment for making various shaped plastic products from thermoplastic or thermosetting plastics using plastic molding dies. It is divided into vertical, horizontal, and all-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. When the injection molding machine performs injection molding on raw materials, it is necessary to mix the raw materials. Therefore, a material mixing device is required;

[0003] According to the patent document: A material mixing device for an injection molding machine proposed in CN213648427U, including a fixed frame, a mixing barrel, and a feeding barrel. A discharging switch is fixedly installed at the center of the upper end of the fixed frame. A mixing barrel is fixedly installed on the discharging switch. A stirring device is fixedly connected to the upper end of the mixing barrel. No less than two material placing frames are fixedly installed on the fixed frame around the mixing barrel. A feeding barrel is fixedly installed at the upper end of the material placing frame. A feeding pipe is fixedly welded to the lower end of the feeding barrel. The feeding pipe is fixedly connected to the mixing barrel. The utility model effectively controls the feeding flow by connecting a feeding barrel to the mixing barrel and installing a spiral feeding column at the connection between the feeding barrel and the mixing barrel, facilitating the regulation of the feeding ratio of various raw materials. At the same time, a stirring device is provided in the feeding barrel to prevent uneven feeding in the feeding barrel. The structure is simple, the production efficiency is improved, the production cost is reduced, and the labor intensity of employees is reduced.

[0004] At present, during the use of traditional injection molding machine material mixing devices, the raw materials are generally directly stirred and mixed by the action of a stirring plate. However, when such a device is operated, since it cannot evenly drive the raw materials to move inside the device, the mixing time of the device for the raw materials will be increased, reducing the practicability of the device. Therefore, a material mixing device for an injection molding machine is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a material mixing device for an injection molding machine to solve the problem of poor mixing effect of raw materials in the above background technique, thereby reducing the mixing efficiency of raw materials.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A material mixing device for an injection molding machine, including a mounting frame, wherein a main body is installed inside the mounting frame through bolts, and a stirring assembly is arranged inside the main body;

[0007] The stirring assembly includes a motor, and a rotating rod is installed at the output end of the motor through a coupling. A servo motor is installed in the bottom groove of the main body through bolts, and a cam is installed at the output end of the servo motor through a coupling. A hollow tube is inserted into the main body, and a lifting plate is installed on the outer wall of the bottom end of the hollow tube through bolts. An activity ring is movably installed on the outer wall of the hollow tube located inside the main body through a bearing, and a plurality of moving plates are movably installed on the outer wall of the activity ring through rotating shafts at equal intervals in a circular structure. Stirring plates are movably installed on the outer walls of the moving plates away from each other through rotating shafts, and springs are fixedly connected to both sides of the top outer wall of the lifting plate.

[0008] Preferably, the motor is fixedly installed at the center of the top outer wall of the main body through bolts, and the rotating rod extends into the main body. The rotating rod is slidably connected to the hollow tube.

[0009] Preferably, a fixing ring is installed on the outer wall of the top end of the rotating rod located inside the main body through bolts, and a plurality of connecting plates are installed on the outer wall of the fixing ring through bolts at equal intervals in a circular structure. The other ends of the connecting plates away from the rotating rod are movably connected to the stirring plates through rotating shafts.

[0010] Preferably, a conveying assembly is installed on one side of the top outer wall of the main body through bolts, and the conveying assembly includes a feeding seat, and the feeding seat is communicated with the main body.

[0011] Preferably, a rotating groove is formed inside the feeding seat, and a rotating cylinder is movably installed inside the rotating groove through a bearing.

[0012] Preferably, a stepping motor is installed on the outer wall of one side of the feeding seat through bolts, and the stepping motor is in transmission connection with the rotating cylinder through a coupling.

[0013] Preferably, a plurality of scraping plates are arranged on the outer wall of the rotating cylinder at equal intervals in a circular structure, and the scraping plates are attached to the inner wall of the rotating groove. A plurality of material grooves are formed on the outer wall of the rotating cylinder between the scraping plates at equal intervals in a circular structure.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By arranging the servo motor and the motor, when the servo motor drives the cam to rotate, the cam will push the lifting plate to rise. The lifting plate can drive the hollow tube and the activity ring on its outer wall to move. The activity ring can drive the stirring plates to gather inward by means of the moving plates, and make the stirring plates reciprocally spread outward and gather inward when the cam continues to rotate by means of the springs, so as to improve the stirring efficiency of the raw materials when the device stirs the raw materials. Moreover, the arrangement of the motor, the rotating rod, the fixing ring and the connecting plates enables the stirring plates to continuously rotate around the rotating rod as the center, thus improving the structure and increasing the practicability of the device.

[0016] 2. By setting a stepper motor, when the stepper motor is started, it will drive the rotating cylinder to rotate. The rotating cylinder can drive the raw materials inside the material tank to rotate, so as to quantitatively add the raw materials according to the rotation speed or number of revolutions of the output shaft of the stepper motor, ensuring the proportional addition function of the raw materials and the neutralized medicinal powder. And by setting a scraper, when the rotating cylinder rotates, residues will not accumulate inside the rotating groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional structure diagram provided by the present utility model;

[0018] Figure 2 A three-dimensional cross-sectional structure diagram provided by the present utility model;

[0019] Figure 3 A cross-sectional structure diagram of the feeding seat provided by the present utility model;

[0020] Figure 4 A structure diagram of the rotating cylinder provided by the present utility model;

[0021] Figure 5 A structure diagram of the movable ring and the moving plate provided by the present utility model;

[0022] In the figure: 1 mounting frame, 2 main body, 3 stirring assembly, 31 motor, 32 rotating rod, 33 servo motor, 34 cam, 35 lifting plate, 36 hollow tube, 37 movable ring, 38 moving plate, 39 stirring plate, 310 spring, 4 fixed ring, 5 connecting plate, 6 conveying assembly, 61 feeding seat, 62 rotating groove, 63 rotating cylinder, 64 stepper motor, 65 material tank, 66 scraper. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figure 1 , Figure 2 and Figure 5 , an injection molding machine mixing device, including a mounting frame 1, the inside of the mounting frame 1 is bolted with a main body 2, and a stirring assembly 3 is arranged inside the main body 2;

[0025] The stirring assembly 3 includes a motor 31, and a rotating rod 32 is installed at the output end of the motor 31 through a coupling. A servo motor 33 is installed in the bottom groove of the main body 2 through bolts, and a cam 34 is installed at the output end of the servo motor 33 through a coupling. A hollow tube 36 is inserted into the main body 2, and a lifting plate 35 is installed on the outer wall of the bottom end of the hollow tube 36 through bolts. An activity ring 37 is movably installed on the outer wall of the hollow tube 36 located inside the main body 2 through a bearing, and a plurality of moving plates 38 are movably installed on the outer wall of the activity ring 37 through rotating shafts at equal distances in a circular structure. Stirring plates 39 are movably installed on the outer walls of the moving plates 38 away from each other through rotating shafts, and springs 310 are fixedly connected to both sides of the top outer wall of the lifting plate 35. The mounting bracket 1 is used to support the device. When the motor 31 and the servo motor 33 are started, the motor 31 drives the rotating rod 32 to rotate, thereby providing power for the rotation of the stirring plates 39. When the servo motor 33 is started, the servo motor 33 drives the cam 34 to rotate, the cam 34 drives the lifting plate 35 to move, the lifting plate 35 drives the hollow tube 36 and the activity ring 37 to move, and during the movement of the activity ring 37, the moving plates 38 and the stirring plates 39 are driven to move. And the activity ring 37 movably connected to the hollow tube 36 enables the activity ring 37 to rotate on the outer wall of the hollow tube 36 by the action of the bearing.

[0026] Please refer to Figure 2 and Figure 5 , the motor 31 is fixedly installed at the center of the top outer wall of the main body 2 through bolts, and the rotating rod 32 extends into the main body 2. The rotating rod 32 is in sliding connection with the hollow tube 36. When the hollow tube 36 rises, the hollow tube 36 slides on the outer wall of the rotating rod 32, thereby providing assistance for the movement of the moving plates 38. A fixing ring 4 is installed at the top end of the outer wall of the rotating rod 32 located inside the main body 2 through bolts, and a plurality of connecting plates 5 are installed on the outer wall of the fixing ring 4 through bolts at equal distances in a circular structure. The other end of the connecting plate 5 away from the rotating rod 32 is movably connected to the stirring plate 39 through a rotating shaft. When the rotating rod 32 rotates, the rotating rod 32 drives the fixing ring 4 to rotate. The fixing ring 4 uses its connection with the connecting plate 5 to make the connecting plate 5 drive the stirring plate 39 to rotate, and due to the movable connection between the activity ring 37 and the hollow tube 36, the rotation of the stirring plate 39 is more effective.

[0027] Please refer to Figure 3 and Figure 4A conveying assembly 6 is installed on one side of the top outer wall of the main body 2 by bolts, and the conveying assembly 6 includes a feeding seat 61, the feeding seat 61 is connected with the main body 2, the feeding seat 61 is set to provide a feeding position for the feeding of raw materials, and the mutual communication between the feeding seat 61 and the main body 2 allows the raw materials to enter the interior of the main body 2; a rotating groove 62 is opened inside the feeding seat 61, and a rotating drum 63 is movably installed inside the rotating groove 62 through a bearing. When the rotating drum 63 rotates, the rotating drum 63 will use the bearing to rotate inside the rotating groove 62; a stepping motor 64 is installed on one side of the outer wall of the feeding seat 61 by bolts, and the stepping motor 64 is connected to the main body 2 through a coupling. The rotating drum 63 is in transmission connection. When the stepper motor 64 is started, the stepper motor 64 will utilize the transmission connection with the rotating drum 63 to rotate the rotating drum 63; scrapers 66 distributed in an annular structure at equal distances are provided on the outer wall of the rotating drum 63, and the scrapers 66 are in contact with the inner wall of the rotating groove 62. The outer wall of the rotating drum 63 located between the scrapers 66 is provided with material troughs 65 distributed in an annular structure at equal distances. During the rotation of the rotating drum 63, the scrapers 66 will be driven to rotate. The scrapers 66 utilize the contact with the rotating groove 62 so that the scrapers 66 can scrape off the residue on the inner wall of the rotating groove 62, and the opening of the material trough 65 makes the feeding of raw materials more perfect.

[0028] Working principle: First, the external pipe is connected to the discharge port of the device and the discharge port is blocked. Then, the raw materials are injected into the inside of the feeding seat 61. During the continuous injection process, the raw materials will enter the inside of the material trough 65. At this time, the stepper motor 64 is started. The stepper motor 64 drives the rotating drum 63 to rotate inside the rotating trough 62 by the action of the coupling. During the rotation of the rotating drum 63, the rotating drum 63 drives the material trough 65 to rotate, so that the raw materials can fall into the inside of the main body 2. During the rotation of the rotating drum 62, the scraper 66 is driven to rotate. The scraper 66 cleans the inner wall of the rotating trough 62 by fitting with the rotating trough 62.

[0029] When the user wants to stir the raw materials, the motor 31 and the servo motor 33 can be started separately. The servo motor 33 can drive the cam 34 to rotate by means of its output end and the coupling. During the rotation of the cam 34, the lifting plate 35 will be pushed up. The lifting plate 35 will drive the hollow tube 36 to rise. During the rising process of the lifting plate 35, the spring 310 will also be compressed. When the hollow tube 36 rises, it will drive the movable ring 37 to rise. The movable ring 37, by virtue of its movable connection with the moving plate 38, enables the moving plate 38 to move. During the movement of the moving plate 38, the stirring plate 39, by virtue of its movable connection with the moving plate 38 and the connecting plate 5, can move inwards. During the rotation of the motor 31, the motor 31 will drive the rotating rod 32 to rotate, and the rotating rod 32 will drive the connecting plate 5 on its outer wall to move. The connecting plate 5 can drive the stirring plate 39, the moving plate 38 and the movable ring 37 to rotate. When the cam 34 rotates half a turn, the spring 310 will drive the lifting plate 35 to descend by means of its acting force, and drive the hollow tube 36 and the parts on its outer wall to move. The above is the working process of the entire device, and the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0030] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mixing device for an injection molding machine, comprising a mounting frame (1), characterized in that: The mounting frame (1) has a main body (2) mounted therein via bolts, and a stirring assembly (3) is disposed inside the main body (2); The stirring assembly (3) comprises a motor (31), and a rotating rod (32) is installed at the output end of the motor (31) through a coupling. A servo motor (33) is installed in the bottom groove of the main body (2) through bolts, and a cam (34) is installed at the output end of the servo motor (33) through a coupling. A hollow tube (36) is inserted into the interior of the main body (2), and a lifting plate (35) is installed on the outer wall of the bottom end of the hollow tube (36) through bolts. A movable ring (37) is movably installed on the outer wall of the hollow tube (36) located inside the main body (2) through a bearing, and moving plates (38) distributed in an annular structure at equal distances are movably installed on the outer wall of the movable ring (37) through a rotating shaft. A stirring plate (39) is movably installed on the outer wall of the moving plate (38) away from each other through a rotating shaft, and springs (310) are fixedly connected to both sides of the top outer wall of the lifting plate (35).

2. The material mixing device for an injection molding machine according to claim 1, characterized in that: The motor (31) is fixedly mounted at the center of the top outer wall of the main body (2) by means of bolts, and the rotating rod (32) extends into the interior of the main body (2), and the rotating rod (32) is slidably connected to the hollow tube (36).

3. The material mixing device for an injection molding machine according to claim 1, characterized in that: The top end of the outer wall of the rotating rod (32) located inside the main body (2) is fixed with a fixing ring (4) by means of bolts, and connecting plates (5) distributed in an annular structure at equal distances are fixed on the outer wall of the fixing ring (4) by means of bolts, and the other end of the connecting plate (5) away from the rotating rod (32) is movably connected to the stirring plate (39) by means of a rotating shaft.

4. The material mixing device for an injection molding machine according to claim 1, characterized in that: A conveying assembly (6) is installed on one side of the top outer wall of the main body (2) by means of bolts, and the conveying assembly (6) comprises a material feeding seat (61), and the material feeding seat (61) is connected to the main body (2).

5. The material mixing device for an injection molding machine according to claim 4, characterized in that: A rotating groove (62) is provided inside the material feeding seat (61), and a rotating drum (63) is movably mounted inside the rotating groove (62) via a bearing.

6. The material mixing device for an injection molding machine according to claim 4, characterized in that: A stepper motor (64) is mounted on an outer wall of one side of the material feeding seat (61) via bolts, and the stepper motor (64) is in transmission connection with the rotating drum (63) via a coupling.

7. The material mixing device for an injection molding machine according to claim 5, characterized in that: The outer wall of the rotating drum (63) is provided with scrapers (66) distributed in an annular structure at equal distances, and the scrapers (66) are in contact with the inner wall of the rotating groove (62). The outer wall of the rotating drum (63) between the scrapers (66) is provided with material grooves (65) distributed in an annular structure at equal distances.

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