Feeding device for injection molding machine

Abstract

The utility model relates to the technical field of feeding of injection molding machines, and discloses a feeding device for an injection molding machine, which comprises a feeding cylinder, an inner cavity interlayer is arranged on the inner wall of the feeding cylinder, a heating mechanism for heating materials is arranged in the inner cavity interlayer, a stirring mechanism for stirring the raw materials is arranged in the feeding cylinder, and a feeding mechanism is arranged in the feeding cylinder. A conveying mechanism for conveying materials is arranged at the bottom in the feeding cylinder, the stirring mechanism comprises a first rotating rod rotationally connected to the top of the inner wall of the feeding cylinder, a fixed cylinder is fixed to the bottom of the outer wall of the first rotating rod, a first bevel gear sleeves the bottom of the outer wall of the first rotating rod, and the first bevel gear is located in the fixed cylinder; two symmetrical inclined holes are formed in the two ends of the bottom of the fixing cylinder, and second rotating rods are rotationally connected into the inclined holes. Raw materials in the feeding cylinder can be conveniently stirred, so that the raw materials are always kept flowing, the raw materials are prevented from being adhered to the inner wall of the feeding cylinder, and the use effect of the feeding cylinder is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machine feeding, in particular to a feeding device for an injection molding machine. Background Art

[0002] The injection molding machine is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastic plastics or thermosetting plastics. The cycle mainly includes: quantitative feeding - melting and plasticizing - pressure injection - mold filling and cooling - mold opening and part removal. The feeding device is used to transport the plastic raw materials to the heated barrel, which is the starting step of the injection molding process.

[0003] The feed barrel of an existing injection molding machine has a simple structure. Raw material is first placed into the barrel and gradually enters the machine under its own weight. However, the raw material cannot remain fluid in the barrel and is prone to solidification. Furthermore, the portion of raw material that adheres to the inner wall of the barrel adheres to the barrel after solidification, requiring frequent manual cleaning, resulting in material waste and increased worker workload. Therefore, a solution to this problem is urgently needed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a feeding device for an injection molding machine.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A feeding device for an injection molding machine, comprising a feeding barrel, wherein the inner wall of the feeding barrel is provided with an inner cavity interlayer, and the inner cavity interlayer is provided with a heating mechanism for heating the material, the inner part of the feeding barrel is provided with a stirring mechanism for stirring the raw material, and the inner bottom of the feeding barrel is provided with a conveying mechanism for conveying the material;

[0007] The stirring mechanism includes a first rotating rod rotatably connected to the top of the inner wall of the feeding cylinder, a fixed cylinder is provided at the bottom of the first rotating rod, a circular hole communicating with the interior of the fixed cylinder is opened at the top of the fixed cylinder, and the bottom of the first rotating rod passes through the circular hole and is fixed to the bottom of the inner wall of the fixed cylinder, a first bevel gear is sleeved on the bottom of the outer wall of the first rotating rod, and the first bevel gear is located inside the fixed cylinder, two symmetrical oblique holes are opened at both ends of the bottom of the fixed cylinder, and a second rotating rod is rotatably connected in the oblique hole, and a second bevel gear is fixed on the top of each of the two second rotating rods, and the second bevel gears are respectively connected to the first bevel gears The two ends of the wheel are meshed with each other, and a first stirring rod is fixed to the bottom of the outer wall of the two second rotating rods, and two second stirring rods are fixed to the top of the outer wall of the two second rotating rods. A limiting rod is fixed to the top of the first bevel gear, and the top of the limiting rod passes through the annular hole and is fixed to the top of the inner wall of the feed barrel. Scraping mechanisms for scraping the inner wall of the feed barrel are provided on both sides of the bottom of the fixed barrel. The rotation of the fixed barrel will drive the second rotating rod to revolve, and the second bevel gear will engage with the first bevel gear to drive the second rotating rod to rotate, thereby driving the first stirring rod to stir the raw material inside the feed barrel to prevent the raw material from solidifying.

[0008] As a further solution of the present invention, the scraping mechanism includes L-shaped connecting rods fixed on both sides of the bottom of the fixed cylinder, and scrapers are fixed at the other ends of the two L-shaped connecting rods, and the scrapers are in contact with the inner wall of the feed cylinder.

[0009] As a further solution of the present invention, the conveying mechanism includes a third rotating rod fixed to the bottom of the fixed cylinder, and an auger is fixed to the bottom of the outer wall of the third rotating rod, which prevents the discharge port from being blocked during discharge.

[0010] As a further solution of the present invention, a discharge port is provided at the bottom of the feed barrel, and the auger is located inside the discharge port.

[0011] As a further solution of the present invention, a motor is installed on the top of the feeding cylinder, and the output shaft of the motor is fixedly connected to the top of the first rotating rod.

[0012] As a further solution of the present invention, the heating mechanism includes an inner cavity interlayer opened on the inner wall of the feed barrel, and a heating rod is installed around the interior of the inner cavity interlayer. The inner cavity interlayer is provided with an insulation layer away from the inner wall of the feed barrel. The heating rod is connected to an external power supply. The insulation layer is made of fireproof and heat-insulating cloth woven from ceramic fibers, which plays a role of heat insulation. The inner wall of the feed barrel is made of heat-conductive material.

[0013] As a further solution of the present invention, a feed port communicating with the interior of the feed barrel is provided at one end of the top of the feed barrel, and support columns are fixed at the four corners of the bottom of the feed barrel.

[0014] The beneficial effects of the utility model are:

[0015] The utility model adopts a heating rod, a first bevel gear, a second bevel gear, a second rotating rod, and a first stirring rod. When the first rotating rod rotates, it drives the fixed cylinder to rotate, and the fixed cylinder drives the second rotating rod to revolve. Since the first bevel gear is sleeved on the outer wall of the first rotating rod, the first bevel gear is stationary. At this time, the second bevel gear will mesh with the first bevel gear and drive the second rotating rod to rotate. The second rotating rod will drive the first stirring rod to rotate. Then, by starting the heating rod, the inner wall of the feed barrel is heated to prevent the raw material from solidifying. The first stirring rod will keep the raw material inside the feed barrel in a flowing state, further preventing the raw material from solidifying. This effectively solves the problem mentioned in the background technology that the raw material is first put into the feed barrel and gradually enters the interior of the injection molding machine by its own weight. However, the raw material cannot remain in a flowing state in the feed barrel and is prone to solidification. This achieves the effect of stirring the raw material inside the feed barrel to prevent solidification.

[0016] The utility model adopts a fixed cylinder, a scraper, and an L-shaped connecting rod. When the fixed cylinder rotates, the fixed cylinder will drive the L-shaped connecting rod to rotate, and the L-shaped connecting rod will drive the scraper to contact the inner wall of the feed cylinder, thereby causing the scraper to scrape and clean part of the raw materials adhering to the inner wall of the feed cylinder. This effectively solves the problem mentioned in the background technology that the part of the raw material close to the inner wall of the feed cylinder will adhere to the inner wall of the barrel after solidification, requiring frequent manual cleaning, resulting in waste of raw materials and increased workload of workers, thereby achieving the effect of automatic cleaning of the inner wall of the feed cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the outer wall structure of a feeding barrel of a feeding device for an injection molding machine proposed in the utility model;

[0018] Figure 2 This is a schematic diagram of the internal cross-sectional structure of a feeding barrel of a feeding device for an injection molding machine proposed in the utility model;

[0019] Figure 3 This is a schematic structural diagram of a stirring mechanism of a feeding device for an injection molding machine proposed in the utility model;

[0020] Figure 4 The utility model is a schematic structural diagram of a scraping mechanism and a conveying mechanism of a feeding device for an injection molding machine.

[0021] In the figure: 1. Feed barrel; 101. Support column; 102. Discharge port; 103. Feed port; 104. Inner cavity interlayer; 105. Heating rod; 107. Insulation layer; 2. Motor; 201. First rotating rod; 3. Fixed barrel; 301. First stirring rod; 302. Second rotating rod; 303. Second stirring rod; 304. First bevel gear; 305. Second bevel gear; 306. Limit rod; 307. Circular hole; 4. Scraper; 401. L-shaped connecting rod; 5. Third rotating rod; 501. Auger. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] Reference Figure 1-Figure 4 A feeding device for an injection molding machine includes a feeding barrel 1, an inner wall of the feeding barrel 1 is provided with an inner cavity interlayer 104, and a heating mechanism for heating the material is provided inside the inner cavity interlayer 104, a stirring mechanism for stirring the raw material is provided inside the feeding barrel 1, and a conveying mechanism for conveying the material is provided at the bottom of the inner part of the feeding barrel 1;

[0025] The stirring mechanism includes a first rotating rod 201 rotatably connected to the top of the inner wall of the feeding cylinder 1, a fixed cylinder 3 is provided at the bottom of the first rotating rod 201, a circular hole 307 communicating with the interior of the fixed cylinder 3 is provided at the top of the fixed cylinder 3, and the bottom of the first rotating rod 201 passes through the circular hole 307 and is fixed to the bottom of the inner wall of the fixed cylinder 3, a first bevel gear 304 is sleeved on the bottom of the outer wall of the first rotating rod 201, and the first bevel gear 304 is located inside the fixed cylinder 3, two symmetrical oblique holes are provided at both ends of the bottom of the fixed cylinder 3, and a second rotating rod 302 is rotatably connected in the oblique hole, and a second bevel gear 305 is fixed on the top of each of the two second rotating rods 302, and the second bevel gear 305 is respectively connected to the first bevel gear 304. The two ends are meshed with each other, and the first stirring rod 301 is fixed to the bottom of the outer wall of the two second rotating rods 302, and two second stirring rods 303 are fixed to the top of the outer wall of the two second rotating rods 302. The top of the first bevel gear 304 is fixed with a limiting rod 306, and the top of the limiting rod 306 passes through the annular hole 307 and is fixed to the top of the inner wall of the feeding barrel 1. Scraping mechanisms for scraping the inner wall of the feeding barrel 1 are provided on both sides of the bottom of the fixed barrel 3. The rotation of the fixed barrel 3 will drive the second rotating rod 302 to revolve, and the second bevel gear 305 will engage with the first bevel gear 304 to drive the second rotating rod 302 to rotate, thereby driving the first stirring rod 301 to stir the raw materials inside the feeding barrel 1 to prevent the raw materials from solidifying.

[0026] In this embodiment, the scraping mechanism includes L-shaped connecting rods 401 fixed on both sides of the bottom of the fixed cylinder 3, and the other ends of the two L-shaped connecting rods 401 are fixed with scrapers 4, and the scrapers 4 are in contact with the inner wall of the feeding cylinder 1.

[0027] In this embodiment, the conveying mechanism includes a third rotating rod 5 fixed to the bottom of the fixed cylinder 3. An auger 501 is fixed to the bottom of the outer wall of the third rotating rod 5. The auger 501 prevents the discharge port 102 from being blocked during discharge.

[0028] In this embodiment, a discharge port 102 is provided at the bottom of the feed barrel 1 , and the auger 501 is located inside the discharge port 102 .

[0029] In this embodiment, a motor 2 is installed on the top of the feeding cylinder 1 , and the output shaft of the motor 2 is fixedly connected to the top of the first rotating rod 201 .

[0030] In this embodiment, the heating mechanism includes an inner cavity interlayer 104 opened on the inner wall of the feed barrel 1, and a heating rod 105 is installed around the interior of the inner cavity interlayer 104. The inner cavity interlayer 104 is provided with an insulation layer 107 away from the inner wall of the feed barrel 1. The heating rod 105 is connected to an external power supply. The insulation layer 107 is made of fireproof and heat-insulating cloth woven from ceramic fibers, which plays a role of heat insulation. The inner wall of the feed barrel 1 is made of heat-conductive material.

[0031] In this embodiment, a feed port 103 communicating with the interior of the feed barrel 1 is provided at one end of the top thereof, and support columns 101 are fixed at the four corners of the bottom of the feed barrel 1 .

[0032] Working principle: When in use, first put the raw material into the inside of the feed barrel 1 from the feed port 103, then connect the heating rod 105 to the external power supply, start the heating rod 105 to heat the inner wall of the feed barrel 1, the inner wall of the feed barrel 1 will heat the raw material inside it to prevent the raw material from adhering to the inner wall of the feed barrel 1 after solidification, because the heat insulation layer 107 is a fireproof heat insulation cloth woven from ceramic fibers, which plays a role of heat insulation, preventing the heating rod 105 from heating the inner wall of the feed barrel 1 and causing the outer wall of the feed barrel 1 to overheat and burn the workers, then start the motor 2, the motor 2 will drive the first rotating rod 201 to rotate, the first rotating rod 201 will drive the fixed barrel 3 to rotate, the fixed barrel 3 will drive the two second rotating rods 302 to rotate, when the fixed barrel 3 rotates, the annular hole 307 will surround the limit rod 3 06 rotates, at this time the second rotating rod 302 will drive the second bevel gear 305 to mesh with the first bevel gear 304, the second rotating rod 302 will rotate, the second rotating rod 302 will drive the first stirring rod 301 to stir the raw materials inside the feed barrel 1, thereby preventing the raw materials from solidifying, and when the fixed barrel 3 rotates, it will drive the L-shaped connecting rod 401 to rotate, and the L-shaped connecting rod 401 will drive the scraper 4 to contact the inner wall of the feed barrel 1, and scrape off some of the raw materials adhering to the inner wall of the feed barrel 1. When the raw materials need to be put into the injection molding machine for use, the rotation of the fixed barrel 3 will drive the third rotating rod 5 to rotate, and the third rotating rod 5 will drive the auger 501 to rotate, and then the raw materials will be transported from the discharge port 102 to the injection molding machine, and the auger 501 will prevent the discharge port 102 from being blocked by the raw materials when transporting the raw materials.

[0033] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0034] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A feeding device for an injection molding machine, comprising a feeding barrel (1), characterized in that: The inner wall of the feed barrel (1) is provided with an inner cavity interlayer (104), and a heating mechanism for heating the material is provided inside the inner cavity interlayer (104), a stirring mechanism for stirring the raw materials is provided inside the feed barrel (1), and a conveying mechanism for conveying the material is provided at the bottom of the inner portion of the feed barrel (1); The stirring mechanism includes a first rotating rod (201) rotatably connected to the top of the inner wall of the feeding cylinder (1), a fixed cylinder (3) is provided at the bottom of the first rotating rod (201), a circular hole (307) communicating with the interior of the fixed cylinder (3) is provided at the top of the fixed cylinder (3), and the bottom of the first rotating rod (201) passes through the circular hole (307) and is fixed to the bottom of the inner wall of the fixed cylinder (3), a first bevel gear (304) is sleeved on the bottom of the outer wall of the first rotating rod (201), and the first bevel gear (304) is located inside the fixed cylinder (3), two symmetrical oblique holes are provided at both ends of the bottom of the fixed cylinder (3), and a second rotating rod (302) is rotatably connected in the oblique holes, and the two A second bevel gear (305) is fixed to the top of each of the second rotating rods (302), and the second bevel gear (305) is respectively engaged with the two ends of the first bevel gear (304), a first stirring rod (301) is fixed to the bottom of the outer wall of each of the two second rotating rods (302), and two second stirring rods (303) are fixed to the top of the outer wall of each of the two second rotating rods (302), a limiting rod (306) is fixed to the top of the first bevel gear (304), and the top of the limiting rod (306) passes through the annular hole (307) and is fixed to the top of the inner wall of the feeding barrel (1), and scraping mechanisms for scraping the inner wall of the feeding barrel (1) are provided on both sides of the bottom of the fixing barrel (3).

2. The feeding device for injection molding machine according to claim 1, characterized in that: The scraping mechanism comprises L-shaped connecting rods (401) fixed on both sides of the bottom of the fixed cylinder (3), and the other ends of the two L-shaped connecting rods (401) are fixed with scrapers (4), and the scrapers (4) are in contact with the inner wall of the feeding cylinder (1).

3. The feeding device for injection molding machine according to claim 1, characterized in that: The conveying mechanism comprises a third rotating rod (5) fixed to the bottom of the fixed cylinder (3), and an auger (501) is fixed to the bottom of the outer wall of the third rotating rod (5).

4. The feeding device for injection molding machine according to claim 3, characterized in that: The bottom of the feeding barrel (1) is provided with a discharge port (102), and the auger (501) is located inside the discharge port (102).

5. The feeding device for injection molding machine according to claim 1, characterized in that: A motor (2) is installed on the top of the feeding cylinder (1), and the output shaft of the motor (2) is fixedly connected to the top of the first rotating rod (201).

6. The feeding device for an injection molding machine according to claim 1, characterized in that: The heating mechanism comprises an inner cavity interlayer (104) opened on the inner wall of the feed barrel (1), and a heating rod (105) is installed around the inner cavity interlayer (104). The inner cavity interlayer (104) is provided with a heat insulation layer (107) away from the inner wall of the feed barrel (1).

7. The feeding device for an injection molding machine according to claim 1, wherein: A feed port (103) communicating with the interior of the feed barrel (1) is provided at one end of the top of the feed barrel (1), and support columns (101) are fixed at the four corners of the bottom of the feed barrel (1).

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