Injection molding machine with overturning type feeding function

Abstract

The utility model discloses an overturning type feeding injection molding machine which comprises a bottom frame, and an injection molding machine body is arranged on the bottom frame. The top of the injection molding machine body is communicated with a wedge-shaped funnel; the outer side of at least one edge of the wedge-shaped funnel is rotationally connected with a feeding frame used for mixing and pouring materials, and the top edge of the feeding frame is rotationally connected with the top edge of the wedge-shaped funnel through a rotating shaft; at least one servo motor is mounted on the bottom frame, and the rotating shaft is in transmission connection with the servo motor, so that the feeding frame can turn over relative to the wedge-shaped funnel and dump materials; the feeding frame is provided with a feeding port and a discharging port. The discharging port is located in the position close to the rotating shaft. According to the design, the efficiency and accuracy of the injection molding machine in the feeding process are improved, and the operation convenience is improved through semi-automatic operation.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machine feeding, and in particular to an injection molding machine with flip-type feeding. Background Art

[0002] Injection molding machines are essential equipment in the production of plastic products. They melt plastic pellets through heating, then inject the molten plastic into a mold under high pressure. After cooling and solidifying, the desired plastic product is obtained. The loading operation of the injection molding machine is a crucial component of the entire injection molding process. Its main function is to deliver the plastic raw material into the injection molding machine's syringe barrel for use in molding products.

[0003] A search revealed that according to the authorization announcement number CN219926742U, a feeding device for an injection molding machine uses a drop-type feeding method, where the raw material drops directly from the feed tube into the discharge tube. This method has certain limitations. First, the final position of the material during free fall is difficult to control, which may lead to inaccurate discharge positioning, which is particularly inconvenient for applications requiring high-precision positioning. Second, it is not convenient and accurate for feeding materials that require mixed materials.

[0004] Therefore, in view of the above problems, it is urgent to propose an injection molding machine with flip-type loading, which adopts a double hopper design and changes the feed by flipping, allowing workers to mix materials within an observable range, thereby improving the accuracy of the materials added by injection molding. Utility Model Content

[0005] In order to overcome the shortcomings of the above-mentioned prior art, the utility model provides an injection molding machine with flip-type loading, which adopts a double hopper design and changes the feed by flipping, allowing workers to mix materials within an observable range, thereby improving the accuracy of the materials added during injection molding.

[0006] The technical solution of the utility model is: an injection molding machine with flip-type loading, comprising a base frame, on which an injection molding machine body is arranged; a wedge-shaped funnel is connected to the top of the injection molding machine body; a loading frame for mixing and dumping materials is rotatably connected to the outer side of at least one edge of the wedge-shaped funnel, and the top edge of the loading frame is rotatably connected to the top edge of the wedge-shaped funnel through a rotating shaft; at least one servo motor is installed on the base frame, and the rotating shaft is transmission-connected to the servo motor so that the loading frame can be flipped relative to the wedge-shaped funnel and the material can be dumped; a feeding port and a discharging port are respectively provided on the loading frame; and the discharging port is located near the rotating shaft.

[0007] Preferably, the loading frame includes a frame body and a top cover; the top cover does not completely cover the top of the frame body, forming the discharge port; the feed port is provided on the top cover, and is provided with a one-way valve cover, which only allows material to enter the loading frame from the outside; the one-way valve cover opens only when pressure is applied from above the outside of the feed port and is normally closed. The one-way valve cover can be a plastic feed film with a 'P'-shaped flap.

[0008] Preferably, a material delivery pipe assembly is also provided on the base frame, and the material delivery pipe assembly is located near the outer side of the loading frame; the material delivery pipe assembly includes an electric turntable rotatably connected to the base frame, and the electric turntable includes a telescopic rod rotatably connected to the base frame through a bearing and a bracket connected to the top of the telescopic rod; the bracket can be raised to a horizontal position higher than the top cover of the loading frame; a feed pipe is fixedly mounted on the bracket, and the inlet end of the feed pipe is used to be connected to an external material pump or a material silo, and the outlet end of the feed pipe extends out of the outside of the bracket and can be rotated to cover the top of the feed port.

[0009] Preferably, the last section of the outlet end of the feed pipe is a rubber guide pipe with telescopic properties.

[0010] Preferably, a guide rod, a weighing plate and a control display module are further provided below the bottom of the loading frame; a plurality of the guide rods are vertically provided on the base frame; the weighing plate is horizontally provided and is sleeved on and fixed to a plurality of the guide rods, and the loading frame is placed on the upper surface of the weighing plate; the control display module is installed on the base frame; the weighing plate is electrically connected to the control display module.

[0011] Furthermore, the control display module is also electrically connected to external electrical components such as the material pump, electronic turntable, and servo motor. When the amount of material added to the loading frame reaches the preset amount, the feed pipe will stop feeding, and the electronic turntable will rotate to cause the feed pipe to leave the top of the loading frame, and control the loading frame to flip over and dump the material into the wedge-shaped funnel.

[0012] Preferably, a disc motor is installed on the outside of the feeding frame, and a mixing roller is installed inside the feeding frame; the output shaft of the disc motor passes through the feeding frame and is transmission-connected to the mixing roller.

[0013] Preferably, a reduction motor and a material removal rod are also installed on the base frame through a support frame; the reduction motor is located above the top of the wedge-shaped funnel, and the output shaft of the reduction motor extends downward and is transmission-connected to the material removal rod; the material removal rod is located inside the wedge-shaped funnel.

[0014] Preferably, part or the entirety of the frame of the loading frame is made of a transparent material.

[0015] Furthermore, there are two feeding frames, each rotatably connected to the outer sides of the top edges of the two wedge-shaped funnels via a rotating shaft; two servo motors are mounted on the base frame, and the two rotating shafts are respectively connected to the two servo motors. Furthermore, there are two sets of feed pipe assemblies, each corresponding to the position of the two feeding frames.

[0016] The beneficial effects of the utility model are: the accuracy of the feeding of mixed materials is improved, thereby ensuring the stability of product quality during the injection molding process; the two feeding frames realize the alternating program of feeding on one side and mixing on the other side, and the semi-automatic process reduces the work intensity of feeding materials and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] Figure 2 It is a three-dimensional structural diagram of the wedge-shaped funnel, feeding frame, servo motor and other components of the utility model.

[0019] Figure 3 It is a three-dimensional structural diagram of the electric turntable, feed pipe, rubber guide pipe and other components of the utility model.

[0020] Figure 4 It is a three-dimensional structural diagram of the guide rod, weighing plate and control display module of the utility model.

[0021] Figure 5 It is a three-dimensional structural diagram of the feeding frame, disc motor and mixing roller of the utility model.

[0022] Figure 6 It is a three-dimensional structural diagram of the wedge-shaped funnel, reduction motor and material-moving rod of the utility model.

[0023] Figure numerals: 1-base frame; 2-injection molding machine body; 3-wedge-shaped funnel; 4-loading frame; 41-feed port; 42-discharge port; 43-frame; 44-top cover; 5-servo motor; 6-rotating shaft; 7-electric turntable; 71-telescopic rod; 72-bracket; 8-feed pipe; 9-rubber guide pipe; 10-guide rod; 11-weighing plate; 12-control display module; 13-disc motor, 14-mixing roller, 15-reduction motor, 16-drilling rod. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0025] Example

[0026] like Figures 1-6 As shown, an injection molding machine with flip loading:

[0027] The machine comprises a base frame 1, on which an injection molding machine body 2 is mounted. A wedge-shaped hopper 3 is connected to the top feed port of the injection molding machine body 2. The wedge-shaped hopper 3 is open at the top, and a reduction motor 15 and a material removal rod 16 are mounted on the base frame 1 via a support frame. The reduction motor 15 is located above the top of the wedge-shaped hopper 3, and its output shaft extends downward and is in driving connection with the material removal rod 16. The material removal rod 16 is located inside the wedge-shaped hopper 3 and is used to push material into the injection molding machine body 2.

[0028] A loading frame 4 for mixing and pouring materials is rotatably connected to the outer sides of the tops of two opposing edges of the wedge-shaped funnel 3. The top edges of the two loading frames 4 are rotatably connected to the top edges of the wedge-shaped funnel 3 via a rotating shaft 6. Two servo motors 5 are mounted on the base frame 1, each rotating shaft 6 being in driving connection with a servo motor 5 to enable the loading frames 4 to tilt relative to the wedge-shaped funnel 3 and pour the materials.

[0029] The loading frame 4 is wedge-shaped, wide at the top and narrow at the bottom, and comprises a frame body 43 and a top cover 44. The sidewall of the frame body 43, near the wedge-shaped funnel 3, is tilted relative to the horizontal plane. The top cover 44 does not completely cover the top of the frame body 43, forming a long, strip-shaped discharge port 42 located near the rotating shaft 6. A feed port 41 is also defined on the top cover 44, which is equipped with a one-way valve cover. This valve only allows material to enter the loading frame 4 from the outside. The valve cover opens only when pressure is applied from above the outside of the feed port 41; it is normally closed.

[0030] Two feed pipe assemblies are also provided on the base frame 1. These two sets of feed pipe assemblies are located near the outsides of the two loading frames 4 and are used to supply material to the loading frames 4. The feed pipe assemblies include an electric turntable 7 rotatably connected to the base frame 1. The electric turntable 7 includes a telescopic rod 71 rotatably connected to the base frame 1 via a bearing, and a bracket 72 connected to the top of the telescopic rod 71. Driven by the telescopic rod 71, the bracket 72 can be raised to a horizontal position above the top cover 44 of the loading frame 4. A feed pipe 8 is fixedly mounted on the bracket 72. The inlet end of the feed pipe 8 is used to connect to an external silo and a feed pump. The outlet end of the feed pipe 8 extends outside the bracket 72 and can be rotated to cover the feed port 41. The outlet end of the feed pipe 8 is located at a retractable rubber guide tube 9.

[0031] Guide rods 10 and a weighing plate 11 are also located below the bottom of the loading frame 4. Several guide rods 10 are vertically mounted on the base frame 1, and the weighing plate 11 is horizontally positioned and securely mounted on the guide rods 10. When the servo motor 5 is powered off and the angle formed between the top cover 44 of the loading frame 4 and the top plane of the wedge-shaped funnel 3 is at its maximum, the loading frame 4 rests on the upper surface of the weighing plate 11. At this point, the servo motor 5 and the rotating shaft 6 exert no force on the loading frame 4, and the amount of material fed into the loading frame 4 can be measured via the supporting plate 11.

[0032] A disc motor 13 is installed on the outside of each feeding frame 4, and a mixing roller 14 is installed inside the feeding frame 4. The mixing roller 14 is horizontally arranged in the middle and lower part of the feeding frame 4. The output shaft of the disc motor 13 horizontally passes through the feeding frame 4 and is connected to the mixing roller 14 for stirring and mixing the materials.

[0033] The frame body 43 of the loading frame 4 includes a portion made of a transparent material, which facilitates observation of the internal conditions of the loading frame 4 .

[0034] A control display module 12 is also mounted on the chassis 1. The control display module 12 is electrically connected to the weighing plate 11, the servo motor 5, the disc motor 13, and the electronic turntable 7.

[0035] Working principle: When the injection molding machine body 2 needs to be loaded, the electric turntable 7 on one side is first started. The electric turntable 7 drives the corresponding feed pipe 8 to rotate so that the outlet of the feed pipe 8 can be aligned with the feed port 41 on the same side. The rubber guide tube 9 will then be attached to the feed port 41, and the rubber guide tube 9 will deform to fit the position of the feed port 41. The rigid outlet edge of the feed pipe 8 presses down to open the one-way valve cover at the feed port 41, and the material enters the loading frame 4. At the same time, the disc motor 13 is started to drive the mixing roller 14 to rotate, thereby stirring and mixing the material inside the loading frame 4. While the loading frame 4 is loading, the weighing plate 11 also measures the weight of the loading until it reaches a preset value. The control display module 12 receives the corresponding signal, stops the external material pump from feeding the material into the feed pipe 8, and starts the electronic turntable 7 to rise and rotate it away from the top of the loading frame 4. After the pressure is lost, the one-way valve cover at the feed port 41 is closed. The servo motor 5 is then activated, driving the loading frame 4 to tilt upward toward the wedge-shaped funnel 3. Once the angle formed between the top cover 44 of the loading frame 4 and the horizontal plane of the upper surface of the wedge-shaped funnel 3 is less than 180°, typically 90°, the material in the loading frame 4 automatically enters the wedge-shaped funnel 3. The reduction motor 15 is then activated to drive the material lever 16, allowing the material to pass through the wedge-shaped funnel 3 and into the injection molding machine body 2 below. The two loading frames 4 can alternately operate in this manner.

[0036] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. An injection molding machine with flip loading, characterized in that: The invention comprises a base frame (1), on which an injection molding machine body (2) is arranged; a wedge-shaped funnel (3) is connected to the top of the injection molding machine body (2); a loading frame (4) for mixing and pouring materials is rotatably connected to the outside of at least one edge of the wedge-shaped funnel (3), and the top edge of the loading frame (4) is rotatably connected to the top edge of the wedge-shaped funnel (3) via a rotating shaft (6); at least one servo motor (5) is installed on the base frame (1), and the rotating shaft (6) is transmission-connected to the servo motor (5) so that the loading frame (4) can be turned over relative to the wedge-shaped funnel (3) and pour the materials; a feeding port (41) and a discharging port (42) are respectively provided on the loading frame (4); the discharging port (42) is located near the rotating shaft (6).

2. The flip-type loading injection molding machine according to claim 1, characterized in that: The loading frame (4) includes a frame body (43) and a top cover (44); the top cover (44) does not completely cover the top of the frame body (43) to form the discharge port (42); the feed port (41) is arranged on the top cover (44), and a one-way valve cover is provided on the feed port (41), and the one-way valve cover only allows materials to enter the interior of the loading frame (4) from the outside; and the one-way valve cover is opened only after receiving pressure from the outside of the feed port (41) and is in a closed state under normal circumstances.

3. The flip-loading injection molding machine according to claim 2, characterized in that: A material delivery pipe assembly is also provided on the base frame (1), and the material delivery pipe assembly is located near the outer side of the loading frame (4); the material delivery pipe assembly includes an electric turntable (7) rotatably connected to the base frame (1), and the electric turntable (7) includes a telescopic rod (71) rotatably connected to the base frame (1) through a bearing and a bracket (72) connected to the top of the telescopic rod (71); the bracket (72) can be raised to a horizontal position higher than the top cover (44) of the loading frame (4); a feed pipe (8) is fixedly installed on the bracket (72), the inlet end of the feed pipe (8) is used to be connected to an external material pump or a material silo, and the outlet end of the feed pipe (8) extends out of the outer side of the bracket (72) and can be rotated to cover the top of the feed port (41).

4. The flip-loading injection molding machine according to claim 3, characterized in that: The end section of the outlet end of the feed pipe (8) is a rubber guide pipe (9) with telescopic performance.

5. The flip-loading injection molding machine according to claim 1, characterized in that: A guide rod (10), a weighing plate (11) and a control display module (12) are also provided below the bottom of the loading frame (4); a plurality of the guide rods (10) are vertically provided on the base frame (1); the weighing plate (11) is horizontally provided and sleeved on the plurality of the guide rods (10) and fixed, and the loading frame (4) is placed on the upper surface of the weighing plate (11); the control display module (12) is installed on the base frame (1); the weighing plate (11) is electrically connected to the control display module (12).

6. The flip-loading injection molding machine according to claim 1, characterized in that: A disc motor (13) is also installed on the outside of the feeding frame (4), and a mixing roller (14) is also installed inside the feeding frame (4); the output shaft of the disc motor (13) passes through the feeding frame (4) and is transmission-connected to the mixing roller (14).

7. The flip-loading injection molding machine according to claim 1, characterized in that: A reduction motor (15) and a material-moving rod (16) are also mounted on the base frame (1) via a support frame; the reduction motor (15) is located above the top of the wedge-shaped funnel (3), and the output shaft of the reduction motor (15) extends downward and is in transmission connection with the material-moving rod (16); the material-moving rod (16) is located inside the wedge-shaped funnel (3).

8. The flip-loading injection molding machine according to claim 2, characterized in that: The frame body (43) of the loading frame (4) includes a portion made of a transparent material.

9. The flip-loading injection molding machine according to claim 1, characterized in that: There are two feeding frames (4), which are rotatably connected to the outer sides of the tops of the two edges of the wedge-shaped funnel (3) through a rotating shaft (6) respectively; two servo motors (5) are installed on the base frame (1), and the two rotating shafts (6) are respectively connected to the two servo motors (5) in a transmission manner.

Images