Abnormal sensing system of plastic color matching machine
By using magnetic induction sensors and swinging plate components in plastic color matching machines, the state of the drop hopper and storage box is automatically sensed, and the problem of large monitoring burden on workers in traditional plastic color matching machines is solved, automated management and abnormal detection are realized, and production is improved Efficiency and safety.
Patent Information
- Application Number
- CN202411732646.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-01-10
AI Technical Summary
Traditional plastic color matching machines lack automatic induction systems, which leads workers to monitor the status of the feed hopper and storage tank for a long time, which increases labor intensity and requires manual inspection and maintenance in abnormal situations.
Components such as magnetic induction sensors and swinging plates are used to automatically induce the status of the drop hopper and storage box, detect abnormalities in a timely manner and issue alarms, reducing the monitoring burden of workers.
Automatic blanking and storage management is realized, which reduces workers' labor intensity, promptly detects equipment abnormalities, and improves production efficiency and safety.
Smart Images
Figure CN119283224A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a plastic color matching machine, in particular to an abnormality sensing system of the plastic color matching machine, and belongs to the field of plastic production equipment. Background Art
[0002] Plastic products are indispensable products in people's lives, such as tableware, tables and chairs, vehicle supplies, toys, etc. Traditional plastic coloring uses direct spraying, which is relatively simple, but the coloring effect is not good enough and it is easy to fade. Therefore, people invented a plastic color matching machine, which mainly mixes plastic raw materials (plastic particles) and color powder in a certain proportion and stirs them so that the color powder adheres to the surface of the plastic raw materials, and then transports them together to the barrel of the injection molding machine for heating, stirring and mixing. The plastic color matching machine is mainly composed of a feeding device for plastic raw materials, a powder feeding device for color powder, a mixing and stirring device, a storage device and other structures, wherein the feeding device for plastic raw materials includes a feeding hopper, a feeding valve is provided at the lower mouth of the feeding hopper, and the lower mouth of the feeding hopper is communicated with the mixing box of the plastic color matching machine, a feeding end cover is provided at the upper part of the feeding hopper, a feeding port is provided in the feeding end cover, and the feeding port is connected to the feeding pipe, and the plastic raw material enters the feeding hopper through the feeding pipe, and the storage device includes a storage box, and the upper part of the storage box A mixing box is provided, and a storage valve is provided between the mixing box and the storage box. The lower part of the storage box is connected to the barrel of the injection molding machine. A barrel valve is provided between the storage box and the barrel. When the plastic raw material and the color powder are fully mixed in the mixing box, they are transported to the storage box for storage through the storage valve, and then transported to the barrel through the barrel valve. When there is enough material in the barrel, the barrel valve is closed, and after the mixing device completes the mixing, the mixed plastic raw material will continue to be fed into the storage box. No sensor is provided in the existing feed hopper and storage box. When the feed hopper is full of plastic raw materials, it cannot be sensed, and manual observation is required. The drop pipe is manually operated to stop or transport the plastic raw materials. In addition, when the mixing device, the storage device, or the barrel of the injection molding machine is abnormal, the mixing box and the storage box are full of plastic particles and cannot be transported to the barrel of the injection molding machine. Manual observation is also required to monitor the abnormality. The workers need to keep an eye on the equipment, which is labor-intensive. Summary of the invention
[0003] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide an abnormality sensing system for a plastic color matching machine with a simple structure, which can automatically sense falling materials, monitor falling abnormalities, and sense the mixed materials in the storage box, thereby reducing the labor intensity of workers.
[0004] The technical scheme of an abnormality sensing system of a plastic color matching machine of the present invention is as follows: it comprises a machine body, a feed hopper is arranged on the upper part of the machine body, a storage box is arranged on one side of the machine body, a mixing box is arranged above the storage box, a valve structure is arranged between the storage box and the mixing box, a cover plate is arranged on the mixing box, a feed port is arranged in the cover plate, a lower opening of the feed hopper corresponds to the feed port, the feed port is communicated with the inside of the mixing box, a feed end cover is arranged on the upper part of the feed hopper, a blanking port is arranged in the feed end cover, the blanking port is connected to a blanking pipe, a first magnetic induction sensor is arranged on the upper part of one side of the feed end cover, and front and rear two connecting pieces are arranged on the lower part of the feed end cover, and the front and rear two connecting pieces are connected to the front and rear two connecting pieces. A swinging piece is arranged between the connecting pieces, and both sides of the swinging piece are rotatably connected to the connecting piece via a rotating shaft, one end of the swinging piece corresponds to the blanking port, and a first magnet is arranged on the other end of the swinging piece, and the first magnet corresponds to the first magnetic induction sensor. A bracket is arranged on the inner wall of the storage box, and a fixed shaft is arranged in the bracket. A rotating piece is arranged on the fixed shaft, connecting ears are arranged on both sides of the upper part of the rotating piece, and an axial hole is opened in the connecting ears. The connecting ears are rotatably matched with the fixed shaft via the axial hole, and a second magnet is arranged on one side of the lower part of the rotating piece, and a second magnetic induction sensor is arranged on the body, and the second magnetic induction sensor corresponds to the second magnet.
[0005] Furthermore, the swing piece is in an inverted V shape.
[0006] Furthermore, a fixing frame is arranged on the feed end cover, a through hole is provided in the fixing frame, and the induction head of the first magnetic induction sensor passes through the through hole and is fixed to the fixing frame.
[0007] Furthermore, a blanking valve is arranged in the blanking port, and the blanking valve is driven to rotate by a blanking motor.
[0008] Furthermore, an extension piece is arranged on one side of the lower part of the rotating piece, and the second magnet is arranged on the extension piece.
[0009] Furthermore, the valve structure includes a material storage valve arranged at the lower opening of the mixing box, and the material storage valve is driven to rotate by a material storage motor.
[0010] The beneficial effects of the abnormality sensing system of a plastic color matching machine of the present invention are as follows: first, by using one end of a swinging piece corresponding to a blanking port, and the other end being provided with a first magnet and a first magnetic induction sensor on a feed end cover, the blanking of the blanking port and whether the feed hopper is full of plastic raw materials can be automatically sensed, thereby eliminating the need for workers to stare at the equipment operation for a long time, reducing the labor intensity of workers, and sensing whether an abnormality occurs in a mixing box, a storage box, or a barrel of an injection molding machine, timely discovering the abnormality, and facilitating workers to inspect and repair; second, by arranging a second magnet on one side of a rotating piece, the second magnet is inductively matched with a second magnetic induction sensor on an outer wall of the storage box, when the storage box is full of mixed materials, the mixed materials can push the rotating piece and the second magnet to rotate, so that the second magnet and the second magnetic induction sensor are disengaged from the inductive matching, proving that the storage box is full of mixed materials, the mixing box stops mixing and stirring, and automatically closes the storage valve; otherwise, it proves that the mixed materials in the storage box are insufficient, the mixing box continues mixing and stirring, and the mixed materials are transported to the storage box, eliminating the need for workers to stare at the equipment operation for a long time, thereby effectively reducing the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a three-dimensional schematic diagram of an abnormality sensing system of a plastic color matching machine of the present invention; Figure 2 It is a structural schematic diagram of an abnormality sensing system of a plastic color matching machine of the present invention; Figure 3 yes Figure 2 A-A direction cross-sectional diagram; Figure 4 yes Figure 3 A local enlarged schematic diagram of point B; Figure 5 It is a structural schematic diagram of a bracket, a fixed shaft, a rotating sheet and a second magnet arranged in a material storage box. DETAILED DESCRIPTION
[0012] The present invention relates to an abnormality sensing system of a plastic color matching machine, such as Figure 1 — Figure 5As shown, it includes a body 1, a feed hopper 2 is arranged on the upper part of the body 1, a storage box 3 is arranged on one side of the body 1, a mixing box 4 is arranged above the storage box 3, a valve structure is arranged between the storage box 3 and the mixing box 4, a cover plate 5 is arranged on the mixing box 4, a feed port 51 is arranged in the cover plate 5, a lower opening of the feed hopper 2 corresponds to the feed port 51, the feed port 51 is communicated with the inside of the mixing box 4, a feed end cover 6 is arranged on the upper part of the feed hopper 2, a drop opening 61 is arranged in the feed end cover 6, the drop opening 61 is connected to the drop pipe, a first magnetic induction sensor 62 is arranged on the upper part of one side of the feed end cover 6, two front and rear connecting pieces 63 are arranged on the lower part of the feed end cover 6, a swing piece 64 is arranged between the front and rear connecting pieces 63, and two ends of the swing piece 64 are The side is rotatably connected with the connecting piece 63 through the rotating shaft 60, one end of the swinging piece 64 corresponds to the blanking port 61, and the other end of the swinging piece 64 is provided with a first magnet 65, and the first magnet 65 corresponds to the first magnetic induction sensor 62. The inner wall of the storage box 3 is provided with a bracket 31, and a fixed shaft 32 is provided in the bracket 31. A rotating piece 33 is provided on the fixed shaft 32, and connecting ears 34 are provided on both sides of the upper part of the rotating piece 33. An axial hole 35 is opened in the connecting ear 34, and the connecting ear 34 is rotatably matched with the fixed shaft 32 through the axial hole 35. A second magnet 37 is provided on one side of the lower part of the rotating piece 33, and a second magnetic induction sensor 11 is provided on the body 1, and the second magnetic induction sensor 11 corresponds to the second magnet 37.
[0013] Furthermore, the swing piece 64 is in an inverted V shape.
[0014] Furthermore, a fixing frame 66 is provided on the feed end cover 6 , a through hole 67 is provided in the fixing frame 66 , and the induction head of the first magnetic induction sensor 62 passes through the through hole 67 and is fixed to the fixing frame 66 .
[0015] Furthermore, a blanking valve 68 is provided in the blanking port 61 , and the blanking valve 68 is driven to rotate by a blanking motor 69 .
[0016] Furthermore, an extension piece 36 is provided at one side of the lower part of the rotating piece 33, and the second magnet 37 is provided on the extension piece 36. With the extension piece 36, the second magnet 37 can be closer to the second magnetic induction sensor 11 without increasing the volume of the rotating piece 33.
[0017] Furthermore, the valve structure includes a material storage valve 41 disposed at the lower opening of the mixing box 4 , and the material storage valve 41 is driven to rotate by a material storage motor 42 .
[0018] The present invention discloses an abnormality sensing system of a plastic color matching machine. When the plastic raw material is to be conveyed into the mixing box 4, the valve located at the feed port 51 is opened (the feed port 51 is provided with a valve, and its specific structure is a prior art), and the plastic raw material in the feed hopper 2 falls into the mixing box 4 through the feed port 51. At this time, the height of the plastic raw material in the feed hopper 2 decreases, and the first magnet 65 drives the left side of the swing plate 64 (the side corresponding to the first magnetic induction sensor 62) to rotate downward under the action of gravity, while the right side of the swing plate 64 (the side corresponding to the drop port 61) rotates upward (the first magnet 65 is weakly magnetic, and under the action of gravity of the single-sided first magnet 65 , its magnetic attraction force is not enough to produce magnetic attraction with the feed end cover 6). At this time, the first magnetic induction sensor 62 cannot sense the magnetism of the first magnet 65, and it controls the blanking motor 69 to work through the control system. The output shaft of the blanking motor 69 drives the blanking valve 68 to rotate and open, and the plastic raw material is transported to the inside of the feed hopper 2 through the blanking pipe and the blanking port 61. When the plastic raw material falls through the blanking port 61, it will contact the right side of the swinging piece 64, which pushes the right side of the swinging piece 64 to rotate downward and the left side to rotate upward. As the plastic raw material keeps falling, the swinging piece 64 keeps swinging left and right, and the first magnet 65 on the left side of the swinging piece 64 cannot contact the first magnetic induction sensor. The induction cooperation of the sensor 62 reaches more than five seconds, so the blanking port 61 keeps the blanking state. When the plastic raw materials in the mixing box 4 reach the specified amount, the valve of the feed port 51 is closed, and the blanking pipe continues to transport the plastic raw materials into the feed hopper 2 through the blanking port 61. When the feed hopper 2 is full of plastic raw materials, the plastic raw materials will be piled up on the upper right side of the swing plate 64 (because the plastic raw materials fall from the blanking port 61, they will first fill up the upper side of the swing plate 64 corresponding to the blanking port 61), so that the right side of the swing plate 64 rotates downward and the left side rotates upward. The first magnet 65 on the left side of the swing plate 64 and the first magnetic induction sensor 62 induction cooperation for more than five seconds , which proves that the feed hopper 2 is full of plastic raw materials, the first magnetic induction sensor 62 sends a signal to the control system, and the control system controls the blanking motor 69 to work, and the output shaft of the blanking motor 69 drives the blanking valve 68 to rotate and close, and the blanking stops. When the first magnet 65 and the first magnetic induction sensor 62 are inductively matched for too long (which can be set, usually 3-5 minutes), that is, the feed hopper 2 has not transported plastic raw materials to the mixing box 4 for a long time, it proves that the mixing box 4 or the storage box 3 or the barrel of the injection molding machine is abnormal, and the first magnetic induction sensor 62 sends a signal to the control system, and the control system issues an alarm to remind the staff to check the abnormality;When the plastic raw material and toner in the mixing box 4 are mixed and stirred, the storage motor 42 drives the storage valve 41 to rotate and open, so that the mixed material in the mixing box 4 falls downward into the storage box 3. The lower opening of the storage box 3 is connected to the barrel of the injection molding machine, and a barrel valve is also provided at the lower opening of the storage box 3 (the specific structure of the barrel valve is the existing technology). The barrel valve is opened to allow the mixed material in the storage box 3 to fall downward into the barrel. If there is enough mixed material in the barrel during heating and mixing, the valve is closed, and the storage box 3 stops conveying the mixed material downward, while the plastic raw material and toner continue to be mixed and stirred in the mixing box 4. After the mixing is completed, the mixed material continues to be conveyed into the storage box 3 until the height of the stored mixed material reaches the position of the rotating piece 33, and the rotating piece 33 is pushed by the mixed material, so that the connecting ear 34 on the upper part of the rotating piece 33 is wound around the fixed The shaft 32 rotates upward, and the rotating piece 34 drives the second magnet 37 to rotate upward through the extension piece 36, so that the second magnet 37 is out of induction cooperation with the second magnetic induction sensor 11 on the outer wall of the storage box 3, proving that the storage box 3 is full of mixed material. At this time, the second magnetic induction sensor 11 sends a signal to the control system, and the control system controls the storage motor 42 to drive the storage valve 41 to close, and the mixing box 4 stops mixing and stirring. When the mixed material needs to be transported to the barrel, the barrel valve is opened to allow the mixed material in the storage box 3 to fall into the barrel. At this time, the mixed material in the storage box 3 drops, and the second magnet 37 drives the rotating piece 33 to rotate downward under the action of gravity, so that the second magnet 37 is inductively matched with the second magnetic induction sensor 11 again. At this time, the mixing box 3 continues to mix and stir, and transports the stirred mixed material to the storage box 3. The present invention provides an abnormality sensing system for a plastic color matching machine. First, one end of a swinging piece 64 is used to correspond to a material drop opening 61, and the other end is provided with a first magnet 65 and a first magnetic induction sensor 62 on a feed end cover 6, which can automatically sense the material drop opening 61 and whether the feed hopper 2 is full of plastic raw materials, thereby eliminating the need for workers to stare at the equipment operation for a long time, reducing the labor intensity of workers, and sensing whether there is an abnormality in a mixing box 4 or a storage box 3 or a barrel of an injection molding machine, so as to detect the abnormality in time and facilitate workers to inspect and repair; second, by providing a second magnet on one side of a rotating piece 34 37, the second magnet 37 is inductively matched with the second magnetic induction sensor 11 on the outer wall of the storage box 3. When the storage box 4 is full of mixed materials, the mixed materials can push the rotating piece 34 and the second magnet 37 to rotate, so that the second magnet 37 and the second magnetic induction sensor 11 are out of inductive matching, which proves that the storage box 4 is full of mixed materials, and the mixing box 3 stops mixing and stirring, and automatically closes the storage valve 41. On the contrary, it proves that the mixed materials in the storage box 4 are insufficient, and the mixing box 3 continues mixing and stirring, and transports the mixed materials to the storage box 4. There is no need for workers to watch the equipment operation for a long time, which can effectively reduce the labor intensity of workers. ;
Claims
1. An abnormality sensing system for a plastic color matching machine, comprising a machine body (1), a feed hopper (2) is arranged on the upper part of the machine body (1), a storage box (3) is arranged on one side of the machine body (1), a mixing box (4) is arranged above the storage box (3), a valve structure is arranged between the storage box (3) and the mixing box (4), a cover plate (5) is arranged on the mixing box (4), a feed port (51) is arranged in the cover plate (5), a lower opening of the feed hopper (2) corresponds to the feed port (51), the feed port (51) is communicated with the inside of the mixing box (4), a feed end cover (6) is arranged on the upper part of the feed hopper (2), a blanking port (61) is arranged in the feed end cover (6), and the blanking port (61) is connected to a blanking pipe, characterized in that: A first magnetic induction sensor (62) is arranged at an upper portion of one side of the feed end cover (6), two front and rear connecting plates (63) are arranged at a lower portion of the feed end cover (6), a swing plate (64) is arranged between the front and rear connecting plates (63), both sides of the swing plate (64) are rotatably connected to the connecting plate (63) via a rotating shaft (60), one end of the swing plate (64) corresponds to the blanking port (61), a first magnet (65) is arranged at the other end of the swing plate (64), the first magnet (65) corresponds to the first magnetic induction sensor (62), and the material storage box (3) A bracket (31) is arranged on the inner wall, a fixed shaft (32) is arranged in the bracket (31), a rotating piece (33) is arranged on the fixed shaft (32), connecting ears (34) are arranged on both sides of the upper part of the rotating piece (33), an axial hole (35) is opened in the connecting ear (34), the connecting ear (34) is rotatably matched with the fixed shaft (32) through the axial hole (35), a second magnet (37) is arranged on one side of the lower part of the rotating piece (33), and a second magnetic induction sensor (11) is arranged on the body (1), and the second magnetic induction sensor (11) corresponds to the second magnet (37).
2. The abnormality sensing system of a plastic color matching machine as claimed in claim 1, characterized in that: The swinging piece (64) is in an inverted V shape.
3. The abnormality sensing system of a plastic color matching machine as claimed in claim 1, characterized in that: A fixing frame (66) is provided on the feed end cover (6), a through hole (67) is provided in the fixing frame (66), and the induction head of the first magnetic induction sensor (62) passes through the through hole (67) and is fixed to the fixing frame (66).
4. The abnormality sensing system of a plastic color matching machine as claimed in claim 1, characterized in that: A blanking valve (68) is provided in the blanking port (61), and the blanking valve (68) is driven to rotate by a blanking motor (69).
5. The abnormality sensing system of a plastic color matching machine as claimed in claim 1, characterized in that: An extension piece (36) is arranged on one side of the lower part of the rotating piece (33), and the second magnet (37) is arranged on the extension piece (36).
6. The abnormality sensing system of a plastic color matching machine as claimed in claim 1, characterized in that: The valve structure comprises a material storage valve (41) arranged at the lower opening of the mixing box (4), and the material storage valve (41) is driven to rotate by a material storage motor (42).