Plastic injection molding machine

Abstract

The utility model discloses a plastic injection molding machine which comprises an injection molding machine main body, a dyeing mechanism, a conveying mechanism and a controller, the mass sensor can automatically detect the mass of the transparent plastic particles in the cylinder body, the corresponding storage cylinder is automatically opened according to the color ratio, then the stirring piece is started in good time, automatic dyeing of the plastic particles is achieved, the trouble that an injection molding machine needs to dye the plastic particles manually is avoided, and the injection molding efficiency is effectively improved. The discharge part is mounted at the bottom end of the barrel, the conveying mechanism is arranged on one side of the barrel, the discharge part is aligned to the conveying mechanism, and the conveying mechanism is communicated with the injection molding machine main body. And the conveying mechanism can directly feed the plastic particles into the injection molding machine main body, so that the trouble of manually carrying the plastic particles is avoided, and the practical performance is further improved.

Description

Technical Field

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

[0002] A plastic injection molding machine is a device that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal, and all-electric types. The plastic injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it eject and fill the mold cavity.

[0003] Existing plastic injection molding machines have the following main drawbacks during use: before injection molding, transparent plastic particles need to be introduced into a mixing drum, then color powder is added to dye the transparent plastic particles, and finally the dyed plastic particles are introduced into the injection molding machine; the operation is relatively cumbersome and requires manual mixing of the color powder and transparent plastic particles according to the product color. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic injection molding machine which is easy to operate and has high injection molding efficiency.

[0005] To achieve the above-mentioned object, the utility model provides a plastic injection molding machine, comprising an injection molding machine body, a dyeing mechanism, a conveying mechanism, and a controller. The dyeing mechanism comprises a plurality of brackets placed on one side of the injection molding machine body, a mass sensor mounted on the bracket, a barrel movably sleeved on the bracket and with its bottom end in close contact with the mass sensor, a stirring member fixed to the bottom end of the barrel and extending into the inner cavity of the barrel, a feed plate fixed to one side of the barrel, a discharge member mounted on the bottom end of the barrel, a plurality of structural frames with ends fixed to the brackets, and a plurality of storage barrels mounted in a circular array on the structural frame; a stirring motor is fixed to the bottom end of the barrel and its shaft extends into the inner cavity of the barrel;

[0006] The storage cylinder includes a shell fixed on the structural frame, a powder outlet pipe fixed at the bottom end of the shell, an electric valve installed on the powder outlet pipe, and a cover plate installed at the top end of the shell;

[0007] The conveying mechanism includes a base placed on one side of the bracket, a round shell fixed at the top of the base, a spiral auger rotatably mounted in the inner cavity of the round shell, a conveying motor fixed on the base and with its shaft extending into the inner cavity of the round shell and driving the spiral auger, a collecting frame mounted on one side of the round shell and communicating with the inner cavity of the round shell, a discharge pipe mounted at the top of the round shell and communicating with the inner cavity of the round shell, and a hose with one end connected to the discharge pipe and the other end connected to the injection molding machine body;

[0008] The controller is in signal connection with the mass sensor, the electric valve and the conveying motor.

[0009] Preferably, a plurality of connecting sleeves are fixed in an annular array on the outer surface of the cylinder, and the connecting sleeves are slidably mounted on the bracket and the bottom ends thereof are tightly attached to the top ends of the mass sensors.

[0010] Preferably, multiple groups of stirring rollers are fixed on the shaft of the stirring motor in a ring array.

[0011] Preferably, a discharge port is opened at the bottom end of the cylinder, and the discharge member includes a guide plate fixed at the bottom end of the cylinder, a baffle slidably engaged on the inner wall opposite to the discharge port, and an electric telescopic rod installed on both sides of the guide plate and with its ends connected to the ends of the baffle; the controller is signal-connected to the electric telescopic rod.

[0012] Preferably, the material guide plate is located above the material collecting frame.

[0013] Preferably, each of the cartridges has a different exterior color.

[0014] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0015] 1. In the utility model, a bracket is provided on one side of the injection molding machine body, and a mass sensor is installed on the bracket, the cylinder is movably embedded in the bracket, and the bottom end of the cylinder is close to the top end of the mass sensor, and at the same time, a stirring piece extending into the inner cavity of the cylinder is installed at the bottom end of the cylinder, a structural frame is fixed at the top end of the bracket, and a plurality of storage cylinders extending into the inner cavity of the cylinder are installed on the structural frame for storing toners of different colors; through the above arrangement, the mass sensor can automatically detect the mass of the transparent plastic particles in the cylinder, and automatically open the corresponding storage cylinder according to the color ratio, so that the toner in the storage cylinder falls into the inner cavity of the cylinder; when the weight of the toner in the inner cavity of the cylinder reaches the ratio mass, the storage cylinder is closed, the stirring piece is started, and the transparent plastic particles and toner are stirred, thereby realizing automatic dyeing of the plastic particles, avoiding the trouble of manual dyeing of the plastic particles by the injection molding machine, and effectively improving the injection molding efficiency.

[0016] 2. In the present invention, a discharge piece is installed at the bottom end of the cylinder, and a conveying mechanism is provided on one side of the cylinder. The discharge piece is aligned with the conveying mechanism, and the conveying mechanism is connected to the injection molding machine body. Through this arrangement, when the dyeing of the plastic particles in the cylinder is completed, the discharge piece is opened, and the plastic particles fall into the conveying mechanism. The conveying mechanism can directly deliver the plastic particles into the interior of the injection molding machine body, avoiding the trouble of manually carrying the plastic particles and further increasing the practical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0018] Figure 1 This is a structural schematic diagram of a plastic injection molding machine provided by the utility model in a specific embodiment;

[0019] Figure 2 for Figure 1 A schematic cross-sectional view of a dyeing mechanism of a plastic injection molding machine is shown;

[0020] Figure 3 for Figure 1 The schematic diagram of the structure of part of the dyeing mechanism of the plastic injection molding machine shown;

[0021] Figure 4 for Figure 1 Schematic diagram of the cylinder structure of the plastic injection molding machine shown;

[0022] Figure 5 for Figure 1 The diagram below shows the conveying mechanism structure of the plastic injection molding machine.

[0023] Figures 1 to 5 The reference numerals in the figures are as follows:

[0024] 100. Injection molding machine body;

[0025] 200, dyeing mechanism; 210, bracket; 220, mass sensor; 230, cylinder; 231, connecting sleeve; 232, discharge port; 240, stirring element; 241, stirring motor; 242, stirring roller; 250, feed plate; 260, discharge element; 261, guide plate; 262, baffle; 263, electric telescopic rod; 270, structural frame; 280, storage cylinder; 281, housing; 282, powder discharge pipe; 283, electric valve; 284, cover plate;

[0026] 300, conveying mechanism; 310, base; 320, round shell; 330, spiral auger; 340, conveying motor; 350, collection frame; 360, discharge pipe; 370, hose. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] The core of the utility model is to provide a plastic injection molding machine with simple operation and high injection efficiency.

[0029] Combine Figure 1-5 As shown, this embodiment provides a plastic injection molding machine, including: an injection molding machine body 100, a dyeing mechanism 200, a conveying mechanism 300 and a controller.

[0030] Among them, the injection molding machine body 100 is used to form products through injection molding, and the dyeing mechanism 200 is placed on one side of the injection molding mechanism for automatically dyeing the plastic particles used for injection molding, including multiple brackets 210 placed on one side of the injection molding machine body 100, a quality sensor 220 installed on the bracket 210, a barrel 230 movably mounted on the bracket 210 and with the bottom end close to the quality sensor 220, a stirring member 240 fixed to the bottom end of the barrel 230 and extending into the inner cavity of the barrel 230, a feed plate 250 fixed on one side of the barrel 230, a discharge member 260 installed at the bottom end of the barrel 230, a plurality of structural frames 270 with their ends fixed to the bracket 210, and a plurality of storage barrels 280 installed in a ring array on the structural frame 270.

[0031] The bracket 210 is used to install other components. A protrusion is fixed in the middle of the bracket 210. The quality sensor 220 is fixed on the top of the protrusion and is used to monitor the changes in the quality of the transparent plastic particles and toner in the inner cavity of the barrel in real time.

[0032] A plurality of connecting sleeves 231 are fixed in a circular array on the outer surface of the cylinder 230. The connecting sleeves 231 are slidably mounted on the bracket 210, and the bottom end of the connecting sleeve 231 is tightly attached to the top end of the mass sensor 220, so that the mass sensor 220 can monitor the quality changes of the material in the cylinder 230 in real time.

[0033] The feed plate 250 is used to introduce materials into the inner cavity of the barrel 230, and the stirring member 240 is used to stir the transparent plastic particles and color powder in the barrel body so that the color powder can evenly dye the transparent plastic particles. It includes a stirring motor 241 fixed at the bottom end of the barrel body 230 and the shaft extending into the inner cavity of the barrel body 230, and multiple groups of stirring rollers 242 fixed on the shaft of the stirring motor 241 in a circular array. When the stirring motor 241 is started, it drives the stirring rollers 242 to rotate, and the stirring rollers 242 rotate to stir the material in the inner cavity of the barrel body.

[0034] The discharging member 260 is used to deliver the plastic particles that have been dyed in the inner cavity of the cylinder 230. A discharging port 232 is provided at the bottom end of the cylinder 230. The discharging member 260 includes a guide plate 261 fixed to the bottom end of the cylinder 230, a baffle 262 slidably engaged with the inner side wall opposite to the discharging port 232, and an electric telescopic rod 263 installed on both sides of the guide plate 261 and with the end portion fixedly connected to the end portion of the baffle 262. The guide plate 261 is used to deliver the plastic particles, and a slide groove is provided on the inner side wall opposite to the discharging port 232. Slide bars are provided on both sides of the baffle 262, and the slide bars are engaged in the slide groove to ensure the stability of the movement of the baffle 262. The baffle 262 is used to control the opening and closing of the discharging port 232. The end of the electric telescopic rod 263 is fixedly connected to the end of the baffle 262 to drive the baffle 262 to move.

[0035] The end of the structural frame 270 is fixed on the bracket 210, and is used to fix multiple storage cylinders 280. The storage cylinders 280 are used to fill toner, and different storage cylinders 280 are filled with toner of different colors. The storage cylinder 280 includes a shell 281 fixed on the structural frame 270, a powder discharge pipe 282 fixed at the bottom end of the shell 281, an electric valve 283 installed on the powder discharge pipe 282, and a cover plate 284 installed on the top end of the shell 281 through a threaded connection. The shell 281 is used to store toner, the top end of the powder discharge pipe 282 is connected to the inner cavity of the shell 281, and the bottom end extends into the inner cavity of the cylinder 230, which is used to introduce toner into the inner cavity of the cylinder 230, the electric valve 283 is used to control the opening and closing of the powder discharge pipe 282, and the cover plate 284 is installed on the top end of the shell 281 through a threaded connection, which is convenient for the user to replenish toner to the inner cavity of the shell 281.

[0036] The conveying mechanism is used to deliver the dyed plastic particles into the inner cavity of the injection molding machine body 100, including a base 310 placed on one side of the bracket 210, a round shell 320 fixed at the top of the base 310, a spiral auger 330 rotatably installed in the inner cavity of the round shell 320, a conveying motor 340 fixed on the base 310 and with its shaft extending into the inner cavity of the round shell 320 and fixedly connected to the spiral auger 330, a collecting frame 350 fixed on one side of the round shell 320 and connected to the inner cavity of the round shell 320, a discharge pipe 360 fixed at the top of the round shell 320 and connected to the inner cavity of the round shell 320, and a hose 370 with one end connected to the discharge pipe 360 and the other end connected to the injection molding machine body 100.

[0037] The base 310 is used to fix the circular shell 320, and the circular shell 320 is fixed to the top of the base 310. The spiral auger 330 is rotatably installed in the inner cavity of the circular shell 320. The shaft of the conveying motor 340 is fixedly connected to the spiral auger 330. Through this arrangement, when the conveying motor 340 is started, it drives the spiral auger 330 to rotate. The rotation of the spiral auger 330 can convey the material at the bottom of the inner cavity of the circular shell 320 to the top.

[0038] The collecting frame 350 is located below the guide plate 261, and is used to collect the plastic particles sent out by the guide plate 261 and introduce them into the inner cavity of the circular shell 320. The discharge pipe 360 is used to discharge the material moved to the top of the circular shell 320, and the hose 370 is used to introduce the plastic particles in the discharge pipe 360 into the injection molding machine body 100.

[0039] The controller is connected to the mass sensor, the electric valve, the stirring motor, the conveying motor, the electric telescopic rod and the like by signals.

[0040] Each storage cylinder 280 can also be set to have a different outer color, so that toner of corresponding color can be loaded therein, which improves the operation recognition and reliability, and is conducive to further improving the operation and maintenance efficiency of the equipment.

[0041] When the product of the present invention is in use, transparent plastic particles can be poured into the inner cavity of the barrel 230 through the feed plate 250, and the quality sensor 220 detects the quality of the transparent plastic particles in the inner cavity of the barrel. According to the injection color requirements, the corresponding storage barrel 280 is opened, and the electric valve 283 is opened to allow the toner in the inner cavity of the shell 281 to fall into the inner cavity of the barrel 230 through the powder discharge pipe 282. When the quality sensor 220 detects the quality of the toner falling into the barrel 230, when it is detected that the quality of the toner in the barrel 230 is equal to the proportion quality, the electric valve 283 is closed to complete the proportion of the toner and transparent plastic particles, and then the stirring motor 241 is started to drive the stirring The mixing roller 242 rotates to stir the transparent plastic particles and the color powder to achieve dyeing of the plastic particles. After dyeing is completed, the electric telescopic rod 263 is started, driving the baffle 262 to move outward, so that the discharge port 232 at the bottom end of the cylinder 230 is opened. At this time, the plastic particles in the cylinder 230 fall into the collection frame 350 through the guide plate 261, and enter the inner cavity of the circular shell 320 through the collection frame 350. The conveying motor 340 is started to drive the spiral auger 330 to rotate. The rotation of the spiral auger 330 drives the plastic particles in the circular shell 320 to move upward and enter the discharge pipe 360, and then enter the injection molding machine body 100 through the hose 370.

[0042] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0043] The above describes in detail the plastic injection molding machine provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A plastic injection molding machine, comprising an injection molding machine body (100), a dyeing mechanism (200), a conveying mechanism (300) and a controller, characterized in that: The dyeing mechanism (200) comprises a plurality of brackets (210) placed on one side of the injection molding machine body (100), a mass sensor (220) mounted on the bracket (210), a barrel (230) movably sleeved on the bracket (210) and with its bottom end close to the mass sensor (220), a stirring member (240) fixed at the bottom end of the barrel (230) and extending into the inner cavity of the barrel (230), a feed plate (250) fixed on one side of the barrel (230), a discharge member (260) mounted at the bottom end of the barrel (230), a plurality of structural frames (270) with their ends fixed to the bracket (210), and a plurality of storage barrels (280) mounted on the structural frame (270) in a circular array; a stirring motor (241) is fixed at the bottom end of the barrel (230) and its shaft extends into the inner cavity of the barrel (230); The storage cylinder (280) includes a shell (281) fixed on the structural frame (270), a powder outlet pipe (282) fixed at the bottom end of the shell (281), an electric valve (283) installed on the powder outlet pipe (282), and a cover plate (284) installed at the top end of the shell (281); The conveying mechanism (300) includes a base (310) placed on one side of the bracket (210), a round shell (320) fixed to the top of the base (310), a spiral auger (330) rotatably mounted in the inner cavity of the round shell (320), a conveying motor (340) fixed to the base (310) and having a shaft extending into the inner cavity of the round shell (320) and driving the spiral auger (330), a material collecting frame (350) mounted on one side of the round shell (320) and communicating with the inner cavity of the round shell (320), a discharge pipe (360) mounted on the top of the round shell (320) and communicating with the inner cavity of the round shell (320), and a hose (370) having one end connected to the discharge pipe (360) and the other end connected to the injection molding machine body (100); The controller is signal-connected to the mass sensor (220), the electric valve (283), the conveying motor (340), and the stirring motor (241).

2. The plastic injection molding machine according to claim 1, characterized in that: A plurality of connecting sleeves (231) are fixed in an annular array on the outer surface of the cylinder (230), and the connecting sleeves (231) are slidably sleeved on the bracket (210) and the bottom ends thereof are closely attached to the top end of the mass sensor (220).

3. The plastic injection molding machine according to claim 1, characterized in that: A plurality of groups of stirring rollers (242) are fixed on the shaft of the stirring motor (241) in a ring array.

4. The plastic injection molding machine according to claim 1, characterized in that: A discharge port (232) is formed at the bottom end of the cylinder (230), and the discharge member (260) comprises a guide plate (261) fixed at the bottom end of the cylinder (230), a baffle (262) slidably engaged with the inner side wall opposite to the discharge port (232), and an electric telescopic rod (263) installed on both sides of the guide plate (261) and having its ends connected to the ends of the baffle (262); the controller is signal-connected to the electric telescopic rod (263).

5. The plastic injection molding machine according to claim 4, characterized in that: The material guide plate (261) is located above the material collecting frame (350).

6. The plastic injection molding machine according to claim 1, characterized in that: Each of the storage cartridges (280) has a different outer color.

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