A column type full-automatic screen changer connecting structure

Abstract

The utility model belongs to the technical field of screen changer, specifically is a kind of column type full-automatic screen changer connecting structure, including screen changer pedestal, the front and rear sides of screen changer pedestal are provided with feed inlet and discharge port, the inside of screen changer pedestal is provided with filter cavity, the inside movable joint of filter cavity is provided with filter column, the right side fixedly connected with driving mechanism of filter column, the driving mechanism includes bottom plate, the side shaft heart of bottom plate close filter column is fixedly connected with servo motor;The utility model is realized the coordinated operation of filter column by the driving mechanism being arranged, the screw rod on it is symmetrical and the thread direction is opposite, when servo motor rotates, the action of piston rod one push one receives is realized, to drive the coordinated movement of filter column, prevent the operation to appear both filter column not in working position to make mechanism damage, the rotation of screw rod on one side can be controlled by the electromagnetic clutch on it, beneficial to adjust the position of filter column, further enhance the overall coordination.

Description

Technical Field

[0001] This utility model belongs to the field of screen changer technology, specifically a column-type fully automatic screen changer connection structure. Background Technology

[0002] The iterative upgrading of industrial technology has driven the manufacturing industry towards automation. With the increasing demand for high-end plastic products, higher requirements are being placed on the automation level and efficiency of screen changers. Column-type fully automatic screen changers, driven by hydraulics or electricity, can achieve instantaneous screen switching. They are mainly used in the processing of polymer materials such as plastics, rubber, and chemical fibers to filter the melt flowing out of the extruder. Their development stems from the manufacturing industry's pursuit of efficient, precise, and automated production.

[0003] Early screen changers were mostly manual, requiring the disassembly of numerous parts and taking several hours to replace traditional screens, with a high risk of melt leakage. Single-column dual-station hydraulic screen changers required stopping operation during screen replacement, impacting efficiency, and frequent disassembly of internal components reduced their lifespan. Dual-column fully automatic screen changers utilized two filter columns for screen replacement and filtration, allowing for continuous operation with one column in operation and the other on standby. However, if the two filter columns did not operate in coordination during screen replacement, it could cause a sudden increase in extruder pressure, leading to damage. Therefore, a column-type fully automatic screen changer connection mechanism was proposed to address these issues. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology and solve at least one of the technical problems mentioned in the background technology, this utility model proposes a column-type fully automatic screen changer connection structure.

[0005] The technical solution adopted by this utility model to solve its technical problem is: the column-type fully automatic screen changer connection structure of this utility model includes a screen changer base, an inlet and an outlet are provided on the front and rear sides of the screen changer base, a filter chamber is provided inside the screen changer base, a filter column is movably connected inside the filter chamber, and a drive mechanism is fixedly connected to the right side of the filter column.

[0006] The drive mechanism includes a base plate, a servo motor is fixedly connected to the center of the base plate near the filter column, a main shaft is fixedly connected to the output end of the servo motor, and secondary shafts and electromagnetic clutches are provided on the left and right sides of the servo motor and on the surface of the base plate.

[0007] The outer wall of the secondary shaft is connected to the outer wall of the main shaft by a belt, which is a synchronous belt. The output end of the electromagnetic clutch is connected to the outer surface of the main shaft by a belt. A lead screw is provided at the upper end of the electromagnetic clutch and the secondary shaft. The lead screw is symmetrical about the servo motor as the axis of symmetry, and the spiral directions of the lead screw surfaces are opposite.

[0008] Preferably, a second support rod is fixedly connected to the four corners of the base plate, and a piston rod is threadedly connected to the surface of the lead screw, and the piston rod is fixedly connected to the filter column.

[0009] Preferably, a piston rod is threaded onto the surface of the lead screw, and the piston rod is fixedly connected to the filter column.

[0010] Preferably, the filter column includes a column body, a filter screen is provided at the left end of the column body, a positioning plate is provided on the right side surface of the column body, and a support rod is slidably connected to the groove of the positioning plate.

[0011] Preferably, the first support rod is fixedly connected to the four corners of the right edge of the screen changer base, the right side of the first support rod is fixedly connected to a support plate, and the right side of the support plate is fixedly connected to the second support rod.

[0012] Preferably, the output end pipe of the feed inlet is connected to a filter chamber, and the output end pipe of the filter chamber is connected to a discharge outlet.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model provides a column-type fully automatic screen changer connection structure. The drive mechanism enables the coordinated operation of the filter columns. When the servo motor rotates the symmetrical lead screws with opposite thread directions, it realizes the piston rod pushing and retracting, thereby driving the coordinated movement of the filter columns. This prevents the mechanism from being damaged if both filter columns are not in the working position during operation. The electromagnetic clutch can control the rotation of the lead screw on one side, which is beneficial for adjusting the position of the filter columns and further enhances the overall coordination.

[0015] 2. This utility model provides a column-type fully automatic screen changer connection structure. With the filter column in place, when the mechanism is running, the filter screen blocked on one side is replaced at the replacement position when the filter column extends. The solid column on the other side blocks the melt in the pipe to prevent the melt from seeping in and causing damage to the mechanism. The positioning plate on one side of the filter column is slidably connected to the support column, which makes the filter column more stable during operation. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a perspective view of the drive mechanism in this utility model;

[0019] Figure 3 This is a perspective view of the cross-section of this utility model;

[0020] Figure 4 This is a three-dimensional view of the filter column in this utility model.

[0021] Legend:

[0022] 1. Screen changer base; 11. Support rod one; 12. Support plate; 2. Feed inlet; 3. Discharge outlet; 4. Filter chamber; 5. Filter column; 51. Column body; 52. Filter screen; 53. Positioning plate; 6. Drive mechanism; 61. Base plate; 611. Support rod two; 62. Servo motor; 63. Main shaft; 64. Synchronous belt; 65. Secondary shaft; 66. Electromagnetic clutch; 67. Lead screw; 68. Piston rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] Please see Figure 1 - Figure 4 This utility model provides a column-type fully automatic screen changer connection structure, including a screen changer base 1, with a feed inlet 2 and a discharge outlet 3 on the front and rear sides of the screen changer base 1, a filter chamber 4 inside the screen changer base 1, a filter column 5 movably connected inside the filter chamber 4, and a drive mechanism 6 fixedly connected to the right side of the filter column 5.

[0026] The filter column 5 includes a column body 51, a filter screen 52 is provided at the left end of the column body 51, a positioning plate 53 is provided on the right side surface of the column body 51, a support rod 11 is slidably connected to the groove of the positioning plate 53, the support rod 11 is fixedly connected to the four corners of the right edge of the screen changer base 1, a support plate 12 is fixedly connected to the right side of the support rod 11, a support rod 611 is fixedly connected to the right side of the support plate 12, the output end pipe of the feed inlet 2 is connected to the filter chamber 4, and the output end pipe of the filter chamber 4 is connected to the discharge port 3.

[0027] During operation, the drive mechanism 6 is activated, adjusting the filter column 5 to a suitable position and injecting melt into the feed inlet 2. One side of the filter chamber 4 is blocked by the column 51. The melt passes through the pipe into the filter screen 52 on the other side of the filter column 5 for filtration, and then exits from the discharge outlet 3, completing the filtration operation. When the filter screen 52 on one side is blocked, the drive mechanism 6 is activated, causing the positioning plate 53 on the filter column 5 to slide on the support rod 11, achieving the effect of one column working while the other is on standby, ensuring continuous operation. With the filter column 5 in place, when the mechanism is running and the filter column 5 extends, the blocked filter screen 52 on one side is replaced in a different position. The solid column on the other side blocks the melt in the pipe, preventing melt from seeping in and causing damage to the mechanism. The positioning plate 53 on one side of the filter column 5 is slidably connected to the support column, making the filter column 5 more stable during operation.

[0028] The drive mechanism 6 includes a base plate 61. A servo motor 62 is fixedly connected to the axis of the base plate 61 near the filter column 5. A main rotating shaft 63 is fixedly connected to the output end of the servo motor 62. Secondary rotating shafts 65 and electromagnetic clutches 66 are provided on the left and right sides of the servo motor 62 and on the surface of the base plate 61.

[0029] The outer wall of the secondary shaft 65 is connected to the outer wall of the main shaft 63 by a belt, which is a synchronous belt 64. The output end of the electromagnetic clutch 66 is connected to the outer surface of the main shaft 63 by a belt. The upper ends of the electromagnetic clutch 66 and the secondary shaft 65 are provided with lead screws 67, which are symmetrical about the servo motor 62. The spiral directions of the surface of the lead screws 67 are opposite.

[0030] Support rods 611 are fixedly connected to the four corners of the base plate 61. Piston rods 68 are threadedly connected to the surface of the lead screw 67. Piston rods 68 are fixedly connected to the filter column 5.

[0031] Before operation, the servo motor 62 and electromagnetic clutch 66 are started to adjust the filter column 5 to a suitable position, so that one is in the filter chamber 4 and the other is pushed out to the screen replacement position. When the filter screen 52 on one of the filter columns 5 becomes clogged, the servo motor 62 is started first. The servo motor 62 drives the main shaft 63 below to rotate. The synchronous belt 64 on the surface of the main shaft 63 drives the secondary shaft 65 and electromagnetic clutch 66 to rotate, which in turn drives the lead screw 67 on it to rotate, causing the piston rod 68 to move. Because the lead screws are symmetrical and the thread direction is opposite, one side extends and the other side retracts during operation, so that the filter column 5 fixed on the piston rod 68 moves in the filter chamber 4, thereby driving the coordinated movement of the filter column 5. This prevents the mechanism from being damaged if neither filter column 5 is in the working position during operation. The electromagnetic clutch 66 can control the rotation of the lead screw 67 on one side, which is beneficial for adjusting the position of the filter column 5 and further enhances the overall coordination.

[0032] Working principle: Before the mechanism runs, start the servo motor 62 and the electromagnetic clutch 66 to adjust the filter column 5 to a suitable position, so that one is in the filter chamber 4 and the other is pushed out to the screen changing position.

[0033] Melt is injected into feed port 2, causing the melt to be filtered into the filter chamber on one side and then discharged from discharge port 3. When the filter screen 52 on one of the filter columns 5 becomes clogged, firstly, the servo motor 62 is started. The servo motor 62 drives the main shaft 63 below to rotate. The synchronous belt 64 on the surface of the main shaft 63 drives the secondary shaft 65 and the electromagnetic clutch 66 to rotate, which in turn drives the lead screw 67 on it to rotate, causing the piston rod 68 to move.

[0034] Secondly, because the lead screws are symmetrical and their threads are opposite in direction, one side extends while the other retracts during operation, causing the filter column 5, fixed on the piston rod 68, to move within the filter chamber 4. This completes the filter column screen changing operation and enhances the coordination of the mechanism.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A column-type fully automatic screen changer connection structure, comprising a screen changer base (1), characterized in that: The screen changer base (1) is provided with a feed inlet (2) and a discharge outlet (3) on the front and rear sides. The screen changer base (1) is provided with a filter chamber (4). The filter chamber (4) is movably connected to a filter column (5). The right side of the filter column (5) is fixedly connected to a drive mechanism (6). The drive mechanism (6) includes a base plate (61), a servo motor (62) is fixedly connected to the axis of the base plate (61) near the filter column (5), a main rotating shaft (63) is fixedly connected to the output end of the servo motor (62), and a secondary rotating shaft (65) and an electromagnetic clutch (66) are provided on the left and right sides of the servo motor (62) and on the surface of the base plate (61). The outer wall of the secondary shaft (65) is connected to the outer wall of the main shaft (63) by a belt, which is a synchronous belt (64). The output end of the electromagnetic clutch (66) is connected to the outer surface of the main shaft (63) by a belt. The upper ends of the electromagnetic clutch (66) and the secondary shaft (65) are provided with lead screws (67). The lead screws (67) are symmetrical about the servo motor (62) as the axis of symmetry, and the spiral directions of the surfaces of the lead screws (67) are opposite.

2. The column-type fully automatic screen changer connection structure according to claim 1, characterized in that: Support rods 2 (611) are fixedly connected to the four corners of the surface of the base plate (61), and piston rods (68) are threadedly connected to the surface of the lead screw (67). The piston rods (68) are fixedly connected to the filter column (5).

3. The column-type fully automatic screen changer connection structure according to claim 2, characterized in that: The lead screw (67) is threadedly connected to a piston rod (68), which is fixedly connected to the filter column (5).

4. The column-type fully automatic screen changer connection structure according to claim 1, characterized in that: The filter column (5) includes a column body (51), a filter screen (52) is provided at the left end of the column body (51), a positioning plate (53) is provided on the right side surface of the column body (51), and a support rod (11) is slidably connected to the groove of the positioning plate (53).

5. The column-type fully automatic screen changer connection structure according to claim 4, characterized in that: The first support rod (11) is fixedly connected to the four corners of the right edge of the screen changer base (1). The right side of the first support rod (11) is fixedly connected to the support plate (12), and the right side of the support plate (12) is fixedly connected to the second support rod (611).

6. The column-type fully automatic screen changer connection structure according to claim 1, characterized in that: The output end pipe of the feed inlet (2) is connected to the filter chamber (4), and the output end pipe of the filter chamber (4) is connected to the discharge port (3).

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