Filter screen structure of plastic extruder

Abstract

The utility model provides a filter screen structure of a plastic extruder, which belongs to the technical field of extruder filtration and comprises a sealed cabin, a lug plate, an alarm, a turntable, a filter screen and a sensor are arranged on the sealed cabin, the lug plate is provided with a bolt, and limiting rods are arranged on two sides of the filter screen; the guide rod can be driven to rotate through rotation of the connecting sleeve, then the limiting gear is driven to rotate through cooperation of the first chain, and the limiting gear is fixedly connected to the lead screw, so that the adjusting block is driven to move, the inclined block extrudes the inclined face of the auxiliary block, and through cooperation of the linkage rod, the auxiliary block is driven to rotate. According to the plastic filtering device, the limiting rod is inserted into the filter screen, so that the limiting rod is separated from the filter screen, the filter screen is taken out and replaced, then the limiting rod is inserted into the filter screen through resetting of the adjusting block and the elastic force of the limiting spring, the filter screen is fixed, subsequent plastic filtering is facilitated, and the purpose of rapidly replacing the filter screen is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of extruder filtering equipment, in particular to a filter screen structure of a plastic extruder. Background Art

[0002] People usually call some types of plastics with large output, low price, wide application and wide impact as general-purpose plastics, and general-purpose plastics are often used to make pipe fittings, industrial packaging, daily necessities, etc. They can also be used to make acid- and alkali-resistant hoses, cable sheaths, insulation layers, and medical supplies such as medical infusion tubes. The extruder is the main equipment for processing plastics. In order to ensure the cleanliness of the extruded raw materials, a filter plate needs to be installed at the extrusion port, and the traditional filter plate is often fixed to the extrusion port by bolts or welding. As a result, when the filter plate is blocked, it is not convenient to quickly disassemble and replace the filter plate, which greatly reduces the production efficiency of the product. Utility Model Content

[0003] In view of this, the utility model provides a filter screen structure of a plastic extruder. The utility model can quickly replace the filter plate on the extrusion head, thereby ensuring that the production efficiency of the product is not affected.

[0004] In order to solve the above technical problems, the utility model provides a filter screen structure of a plastic extruder, comprising a sealed cabin, wherein the sealed cabin is provided with an ear plate, an alarm, a turntable, a filter screen and a sensor, wherein the ear plate is provided with bolts, and limit rods are provided on both sides of the filter screen, wherein the limit rods are provided with a limit spring and a linkage rod, wherein the linkage rod is provided with an auxiliary block, and an adjusting block is provided on the top of the auxiliary block;

[0005] The adjusting block is provided with a lead screw and a limit gear, the limit gear is provided with a first chain, the first chain is provided with a sub-gear and a guide rod, the guide rod is provided with a second chain, the second chain is provided with a main gear, and the main gear is provided with a connecting sleeve and a transmission rod.

[0006] As a further solution of the utility model: a clamping block is arranged on the transmission rod, an auxiliary spring and a bearing seat are arranged on the other end of the clamping block, the ear plate is fixedly connected to both sides of the sealing cabin, and the bolt is threadedly connected to the ear plate.

[0007] As a further solution of the utility model: the alarm and the sensor are both fixedly connected to the sealed cabin, the filter screen and the transmission rod are both plugged into the sealed cabin, one end of the transmission rod is fixedly connected to the turntable, and the other end of the transmission rod passes through the connecting sleeve and is fixedly connected to the bearing seat.

[0008] As a further solution of the utility model: the block is fixedly connected to the bearing seat, one end of the auxiliary spring is fixedly connected in the sealed cabin, and the other end of the auxiliary spring is fixedly connected to the bearing seat, the main gear is fixedly connected to both ends of the connecting sleeve, and the connecting sleeve is inserted in the sealed cabin.

[0009] As a further solution of the utility model: the sub-gear is fixedly connected to the two ends of the guide rod, the second chain is respectively installed on the main gear and one of the sub-gears, the first chain is respectively installed on the other sub-gear and the limit gear, and the limit gear is fixedly connected to the screw rod.

[0010] As a further solution of the utility model: the screw rod is inserted in the sealed cabin, the adjusting block is threadedly connected to the screw rod, the bottom of the adjusting block is fixedly connected with an inclined block, and the inclined block is arranged on the top of the auxiliary block, the adjusting block is slidably connected in the sealed cabin, and the auxiliary block is fixedly connected to the connecting rod.

[0011] As a further solution of the utility model: the two ends of the connecting rod are respectively fixedly connected to the limit rod, the limit rod, the connecting rod and the auxiliary block are all slidably connected in the sealed cabin, the limit spring is installed in the sealed cabin, and one end of the limit spring is fixedly connected to the limit rod, and the other end of the limit rod passes through the sealed cabin and is inserted into the filter net.

[0012] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0013] 1. The filter screen structure of the plastic extruder drives the second chain to move by the rotation of the connecting sleeve, and the movement of the second chain is achieved through the cooperation of the sub-gear, thereby driving the guide rod to rotate, and then driving the limit gear to rotate through the cooperation of the first chain, and the limit gear is fixedly connected to the screw rod, thereby driving the adjustment block to move, so that the inclined block squeezes the inclined surface of the auxiliary block, and through the cooperation of the connecting rod, the limit rod is disengaged from the plug-in with the filter screen, so that the filter screen is taken out and replaced, and then the adjustment block is reset and the elastic force of the limit spring is used to plug the limit rod into the filter screen, thereby fixing the filter screen for subsequent filtering of the plastic, thereby achieving the purpose of quickly replacing the filter screen.

[0014] 2. The filter structure of the plastic extruder pulls the turntable to insert the block into the connecting sleeve, which facilitates the subsequent rotation of the connecting sleeve, and then the auxiliary spring pulls the block to reset through the cooperation of the bearing seat, so that the block is disengaged from the connection with the connecting sleeve, thereby effectively avoiding the filter falling off caused by the non-human rotation of the turntable, and the sensor is used to sense the plastic flow rate in the sealed cabin to determine whether the filter is blocked, and through the cooperation of the alarm, it is convenient for the staff to replace the filter in time, thereby greatly improving the practicality of the filter structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the sealed cabin of the utility model;

[0017] Figure 3 for Figure 2 A magnified schematic diagram of point A;

[0018] Figure 4 Schematic diagram of the transmission rod and the second chain of the utility model

[0019] Figure 5 for Figure 4 An enlarged schematic diagram of point B.

[0020] Description of reference numerals:

[0021] 1. Sealed cabin; 2. Ear plate; 3. Bolt; 4. Alarm; 5. Turntable; 6. Sensor; 7. Filter; 8. Limit rod; 9. Limit spring; 10. First chain; 11. Guide rod; 12. Second chain; 13. Limit gear; 14. Adjustment block; 15. Linking rod; 16. Auxiliary block; 17. Screw rod; 18. Sub gear; 19. Transmission rod; 20. Auxiliary spring; 21. Bearing seat; 22. Block; 23. Main gear; 24. Connecting sleeve. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-5 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0023] like Figure 1-2As shown: This embodiment provides a filter screen structure of a plastic extruder, including a sealed cabin 1, on which are provided an ear plate 2, an alarm 4, a turntable 5, a filter screen 7 and a sensor 6, the alarm 4 and the sensor 6 are both fixedly connected to the sealed cabin 1, the filter screen 7 and the transmission rod 19 are both plugged into the sealed cabin 1, one end of the transmission rod 19 is fixedly connected to the turntable 5, and the other end of the transmission rod 19 passes through a connecting sleeve 24 and is fixedly connected to a bearing seat 21; the utility model can observe the flow speed of the plastic in the sealed cabin 1 through the sensor 6, thereby determining whether the filter screen 7 is blocked, and then through the cooperation of the alarm 4, the staff can quickly replace the filter screen 7.

[0024] like Figure 2-4 As shown, the ear plate 2 is provided with a bolt 3, limit rods 8 are provided on both sides of the filter screen 7, and a limit spring 9 and a connecting rod 15 are provided on the limit rod 8. The two ends of the connecting rod 15 are respectively fixedly connected to the limit rod 8, and the limit rod 8, the connecting rod 15 and the auxiliary block 16 are all slidably connected in the sealed cabin 1. The limit spring 9 is installed in the sealed cabin 1, and one end of the limit spring 9 is fixedly connected to the limit rod 8, and the other end of the limit rod 8 passes through the sealed cabin 1 and is inserted in the filter screen 7. An auxiliary block 16 is provided on the connecting rod 15, and an adjusting block 14 is provided on the top of the auxiliary block 16. A screw rod 17 and a limit gear 13 are provided on the adjusting block 14, and the screw rod 17 is inserted in the sealed cabin 1. The adjusting block 14 is threadedly connected to the screw rod 17, and the bottom of the adjusting block 14 is fixedly connected with an inclined block, and the inclined block is arranged on the top of the auxiliary block 16. The block 14 is slidably connected in the sealed cabin 1, the auxiliary block 16 is fixedly connected to the linkage rod 15, the limit gear 13 is provided with a first chain 10, the first chain 10 is provided with a sub-gear 18 and a guide rod 11, the sub-gear 18 is fixedly connected to both ends of the guide rod 11, the second chain 12 is respectively mounted on the main gear 23 and one of the sub-gears 18, the first chain 10 is respectively mounted on the other sub-gear 18 and the limit gear 13, the limit gear 13 is fixedly connected to the screw rod 17; the utility model can rotate the guide rod 11 by rotating the connecting sleeve 24, and then drive the screw rod 17 to rotate by the cooperation of the first chain 10, and the rotation of the screw rod 17 drives the adjusting block 14 to move, so that the limit rod 8 is disengaged from the plug-in with the filter screen 7, thereby facilitating the rapid replacement of the filter screen 7.

[0025] like Figure 4-5As shown, the guide rod 11 is provided with a second chain 12, the second chain 12 is provided with a main gear 23, the main gear 23 is provided with a connecting sleeve 24 and a transmission rod 19, the transmission rod 19 is provided with a clamping block 22, the other end of the clamping block 22 is provided with an auxiliary spring 20 and a bearing seat 21, the ear plate 2 is fixedly connected to both sides of the sealed cabin 1, the bolt 3 is threadedly connected to the ear plate 2, the clamping block 22 is fixedly connected to the bearing seat 21, one end of the auxiliary spring 20 is fixedly connected in the sealed cabin 1, and the auxiliary spring 20 is fixedly connected to the bearing seat 21. The other end is fixedly connected to the bearing seat 21, the main gear 23 is fixedly connected to the two ends of the connecting sleeve 24, and the connecting sleeve 24 is inserted in the sealed cabin 1; the utility model can pull the turntable 5 to insert the block 22 into the connecting sleeve 24, so that the turntable 5 drives the connecting sleeve 24 to rotate, and then the elastic force of the auxiliary spring 20 is used to pull the bearing seat 21 to move, and the block 22 is separated from the connection with the connecting sleeve 24, effectively avoiding the non-artificial rotation of the connecting sleeve 24.

[0026] Working principle: by pulling the turntable 5, the block 22 is inserted into the connecting sleeve 24, and then the connecting sleeve 24 is rotated to drive the guide rod 11 to rotate, and then the limit gear 13 is driven to rotate through the cooperation of the first chain 10, and the limit gear 13 is fixedly connected to the screw rod 17, thereby driving the adjustment block 14 to move, so that the inclined block squeezes the inclined surface of the auxiliary block 16, and through the cooperation of the connecting rod 15, the limit rod 8 is disengaged from the plug-in with the filter screen 7, so that the filter screen 7 is taken out and replaced, and then the adjustment block 14 is reset, and the elastic force of the limit spring 9 is used to make the limit rod 8 inserted into the filter screen 7, so that the filter screen 7 is fixed, and the sensor 6 cooperates with the alarm 4, so that the staff can replace the filter screen 7 in time.

[0027] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A filter screen structure for a plastic extruder, characterized in that: The invention comprises a sealed cabin (1), wherein the sealed cabin (1) is provided with an ear plate (2), an alarm (4), a rotating disk (5), a filter (7) and a sensor (6), wherein the ear plate (2) is provided with a bolt (3), and limit rods (8) are provided on both sides of the filter (7), and the limit rods (8) are provided with a limit spring (9) and a linkage rod (15), and the linkage rod (15) is provided with an auxiliary block (16), and an adjusting block (14) is provided on the top of the auxiliary block (16); The adjusting block (14) is provided with a screw rod (17) and a limit gear (13); the limit gear (13) is provided with a first chain (10); the first chain (10) is provided with a sub-gear (18) and a guide rod (11); the guide rod (11) is provided with a second chain (12); the second chain (12) is provided with a main gear (23); the main gear (23) is provided with a connecting sleeve (24) and a transmission rod (19).

2. A filter screen structure for a plastic extruder as claimed in claim 1, characterized in that: The transmission rod (19) is provided with a clamping block (22), the other end of the clamping block (22) is provided with an auxiliary spring (20) and a bearing seat (21), the ear plate (2) is fixedly connected to both sides of the sealed cabin (1), and the bolt (3) is threadedly connected to the ear plate (2).

3. A filter screen structure for a plastic extruder as claimed in claim 2, characterized in that: The alarm (4) and the sensor (6) are both fixedly connected to the sealed cabin (1), the filter screen (7) and the transmission rod (19) are both plugged into the sealed cabin (1), one end of the transmission rod (19) is fixedly connected to the turntable (5), and the other end of the transmission rod (19) passes through the connecting sleeve (24) and is fixedly connected to the bearing seat (21).

4. A filter screen structure for a plastic extruder as claimed in claim 3, characterized in that: The clamping block (22) is fixedly connected to the bearing seat (21), one end of the auxiliary spring (20) is fixedly connected to the sealed cabin (1), and the other end of the auxiliary spring (20) is fixedly connected to the bearing seat (21), the main gear (23) is fixedly connected to both ends of the connecting sleeve (24), and the connecting sleeve (24) is inserted into the sealed cabin (1).

5. A filter screen structure for a plastic extruder as claimed in claim 4, characterized in that: The sub-gear (18) is fixedly connected to both ends of the guide rod (11); the second chain (12) is respectively mounted on the main gear (23) and one of the sub-gears (18); the first chain (10) is respectively mounted on the other sub-gear (18) and the limit gear (13); and the limit gear (13) is fixedly connected to the screw rod (17).

6. A filter screen structure for a plastic extruder as claimed in claim 5, characterized in that: The screw rod (17) is inserted into the sealed cabin (1), the adjusting block (14) is threadedly connected to the screw rod (17), the bottom of the adjusting block (14) is fixedly connected with an inclined block, and the inclined block is arranged on the top of the auxiliary block (16), the adjusting block (14) is slidably connected in the sealed cabin (1), and the auxiliary block (16) is fixedly connected to the connecting rod (15).

7. A filter screen structure for a plastic extruder as claimed in claim 5, characterized in that: The two ends of the linkage rod (15) are respectively fixedly connected to the limit rod (8); the limit rod (8), the linkage rod (15) and the auxiliary block (16) are all slidably connected in the sealed cabin (1); the limit spring (9) is installed in the sealed cabin (1); one end of the limit spring (9) is fixedly connected to the limit rod (8); the other end of the limit rod (8) passes through the sealed cabin (1) and is inserted into the filter screen (7).

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