Screw extruder for producing PPH liquid storage tank

Abstract

The utility model relates to a screw extruder for producing a PPH liquid storage tank, which comprises a machine body, one end of the machine body is open, the other end of the machine body is provided with a die head mechanism, the open end of the machine body is fixedly provided with a flange, and a plurality of groups of first motors which are uniformly distributed at intervals circumferentially are fixedly erected on the outer side part of the machine body on the peripheral side of the open end; the output end of the first motor is fixedly connected with a first electric push rod, the telescopic end of the first electric push rod penetrates through the flange and is fixedly connected with a limiting block, an end plate abuts against the flange, a plurality of sets of through grooves are formed in the edge of the end plate, and blind grooves perpendicular to the corresponding through grooves are formed in the end plate on the side, away from the flange, of each set of through grooves. The limiting blocks are in one-to-one correspondence with the through grooves, penetrate through the corresponding through grooves and can be inserted into the corresponding blind grooves after rotating by 90 degrees, a second motor is fixedly erected on the center of the side, away from the flange, of the end plate, and an output shaft of the second motor penetrates through the end plate and is detachably connected with a screw. According to the utility model, the screw rod can be quickly disassembled, assembled and replaced, and is more practical.

Description

Technical Field

[0001] The utility model belongs to the technical field of screw extrusion, and in particular relates to a screw extruder for producing a PPH liquid storage tank. Background Art

[0002] At present, the common production process of PPH liquid storage tanks mainly includes mixing of raw materials (PPH plastic particles, masterbatch), hot melting, spiral extrusion, molding, cooling, cutting, welding and assembly. Among them, when spirally extruding the hot-melted materials, screw extruders are mostly used. However, the screw of the existing conventional screw extruder is not easy to disassemble after installation. The disassembly and assembly are difficult and time-consuming, which makes it inconvenient to inspect and clean the screw after use, and also affects the subsequent extrusion processing, which needs to be improved. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a screw extruder for producing PPH liquid storage tanks, which can realize quick disassembly, assembly and replacement of the screw to solve the above-mentioned problems.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a screw extruder for producing PPH liquid storage tanks, comprising a body, one end of the body is open, and the other end is equipped with a die head mechanism, a feeding port is provided on the top of the body near its open end, a flange is fixedly provided at the open end of the body, and a plurality of groups of first motors uniformly distributed at circumferential intervals are fixedly mounted on the outer side of the body around the open end, the output end of the first motor faces the flange and is coaxially fixedly connected with a first electric push rod, the telescopic end of the first electric push rod passes through the flange and is fixedly connected with a limiting block, an end plate is abutted on the flange, a plurality of groups of through grooves are provided on the edge of the end plate, and a blind groove perpendicular to the corresponding through groove is provided on the end plate on the side of each group of through grooves away from the flange, the limiting block corresponds to the through groove one by one and passes through the corresponding through groove and can be inserted in the corresponding blind groove after rotating ninety degrees, A second motor is fixedly mounted on the center of one side of the end plate away from the flange, and an output shaft of the second motor penetrates the end plate and is coaxially fixedly connected to a square support seat, and grooves are provided on the four side portions of the support seat, and the support seats corresponding to the groove bottoms of the grooves are built-in with a second electric push rod, and the telescopic end of the second electric push rod extends into the groove and is fixedly connected to a fixing plate, and a plurality of fixing rods evenly distributed in a rectangular array are fixedly provided on the side of the fixing plate away from the corresponding second electric push rod, and a screw is provided in the body, and one end of the screw is coaxially fixedly connected to a mounting column, and a square mounting groove is coaxially provided on the side of the mounting column away from the screw, and a plurality of blind holes are provided on the four side groove walls of the mounting groove, and the mounting column is sleeved on the outer side of the support seat through the mounting groove, and the fixing plate abuts against the groove wall of the corresponding mounting groove, and the fixing rods correspond to and are plugged into the blind holes on the groove wall of the corresponding mounting groove.

[0005] Preferably, the limit block is adapted to the corresponding through slot and blind slot.

[0006] Preferably, the support seat is adapted to the mounting groove.

[0007] Preferably, the fixing rod is matched with the corresponding blind hole.

[0008] Preferably, a plurality of electric heaters are evenly distributed on the outer side of the machine body.

[0009] The beneficial effect of the utility model is that during the extrusion operation, the hot-melted material can be fed into the machine body through the feed port, and then the second motor drives the screw to rotate, and the material is driven forward and transported by the screw until the material is extruded through the die head mechanism. After a period of use, when the screw needs to be replaced to facilitate the inspection and cleaning of the used screw, the first electric push rod can be operated in the shutdown state to extend its telescopic end, which can drive the limit block away from the corresponding blind groove and lift the limit block from the corresponding blind groove. Then, the first motor is operated to drive the corresponding first electric push rod and the limit block to rotate 90 degrees counterclockwise as a whole, so that the limit block can be aligned with the corresponding through groove, thereby releasing the limit fixation of the end plate, so that the end plate can move in the direction away from the flange until the screw is completely taken out of the machine body. Next, operate the second electric push rod to shrink its telescopic end, drive the fixing plate back to the corresponding groove, and pull the fixing rod out of the corresponding blind hole, so as to release the plug-in fixation of the mounting column, and then pull out the mounting column to the right to remove the used screw rod;

[0010] When installing a new screw, just put the mounting column onto the support seat first, then run the second electric push rod to extend its telescopic end, drive the fixed plate to move toward the mounting column, until the fixed plate presses against the groove wall of the mounting groove, and the fixed rod is inserted into the corresponding blind hole, the mounting column can be inserted and fixed, so as to complete the fixed installation of the screw, and the installation is stable and does not affect subsequent use. After that, the screw is extended into the body and the entire end plate is moved to the right until the end plate presses against the flange, and the limit block is aligned and penetrates the corresponding through groove. Then, run the first motor to drive the first electric push rod and the limit block to rotate 90 degrees clockwise as a whole, so that the limit block can be aligned with the corresponding blind groove. Next, run the first electric push rod to shrink its telescopic end, which can drive the limit block to approach the corresponding blind groove, until the limit block is inserted into the corresponding blind groove, the end plate can be fixed, and then the extrusion process can be carried out according to the above steps. In this way, the screw can be quickly replaced through flexible and quick disassembly and assembly between the end plate and the flange and between the screw and the output shaft of the second motor. The operation is simpler and more convenient, and it is easier to inspect, clean and maintain the screw after use, and the adverse effects on subsequent extrusion processing are reduced, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a main structural schematic diagram of the utility model;

[0012] Figure 2 This is a schematic diagram of the main structure of the open end of the body of the utility model;

[0013] Figure 3 It is a schematic diagram of the main structure of the end plate of the utility model;

[0014] Figure 4 It is a left-side structural schematic diagram of the end plate of the utility model;

[0015] Figure 5 It is a right side structural schematic diagram of the support seat of the utility model;

[0016] Figure 6 This is a schematic diagram of the main structure of the installation column of the utility model;

[0017] Figure 7 It is a left-side structural schematic diagram of the installation column of the utility model;

[0018] Figure 8 It is a schematic diagram of the main structure of the utility model when the end plate is connected to the flange;

[0019] Fig. 9 It is a schematic diagram of the main structure when the support base of the utility model is connected with the installation column.

[0020] Numbers in the figure: 1 is the machine body, 2 is the die head mechanism, 3 is the feed port, 4 is the flange, 5 is the first motor, 6 is the first electric push rod, 7 is the limit block, 8 is the end plate, 9 is the through slot, 10 is the blind slot, 11 is the second motor, 12 is the support seat, 13 is the groove, 14 is the second electric push rod, 15 is the fixing plate, 16 is the fixing rod, 17 is the screw, 18 is the mounting column, 19 is the mounting slot, 20 is the blind hole, and 21 is the electric heater. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods:

[0022] like Figures 1 to 9As shown, a screw extruder for producing a PPH liquid storage tank comprises a body 1, one end of the body 1 is open, and a die head mechanism 2 is installed at the other end. A feed port 3 is provided on the top of the body 1 near the open end. A flange 4 is fixedly provided at the open end of the body 1, and a plurality of groups of first motors 5 evenly spaced at circumferential intervals are fixedly mounted on the outer side of the body 1 around the open end. The output end of the first motor 5 faces the flange 4 and is coaxially fixedly connected with a first electric push rod 6. The telescopic end of the first electric push rod 6 penetrates the flange 4 and is fixedly connected with a limit block 7. An end plate 8 is abutted on the flange 4, and a plurality of groups of through grooves 9 are provided on the edge of the end plate 8. A blind groove 10 perpendicular to the corresponding through groove 9 is provided on the end plate 8 on the side of each group of through grooves 9 away from the flange 4. The limit block 7 corresponds to the through grooves 9 one by one and penetrates the corresponding through grooves 9 and can be inserted into the corresponding blind groove 10 after rotating ninety degrees. A second motor 11 is fixedly mounted at the center of one side of the end plate 8 away from the flange 4. The output shaft of the second motor 11 passes through the end plate 8 and is coaxially fixedly connected to a square support seat 12. Grooves 13 are provided on the four sides of the support seat 12. The support seats 12 corresponding to the groove bottoms of the grooves 13 are equipped with second electric push rods 14. The telescopic ends of the second electric push rods 14 extend into the grooves 13 and are fixedly connected to a fixing plate 15. A plurality of fixing rods 16 evenly distributed in a rectangular array are fixedly arranged on the side of the fixing plate 15 away from the corresponding second electric push rod 14. A screw rod 17 is provided in the body 1, one end of the screw rod 17 is coaxially fixedly connected with a mounting column 18, a square mounting groove 19 is coaxially provided on the side of the mounting column 18 away from the screw rod 17, and a plurality of blind holes 20 are provided on the four side groove walls of the mounting groove 19. The mounting column 18 is sleeved on the outer side of the support seat 12 through the mounting groove 19, the fixing plate 15 abuts against the groove wall of the corresponding mounting groove 19, and the fixing rod 16 corresponds to and is plugged into the blind holes 20 on the groove wall of the corresponding mounting groove 19 one by one;

[0023] During the extrusion operation, the hot-melted material can be fed into the machine body 1 through the feed port 3, and then the second motor 11 drives the screw 17 to rotate, and the screw 17 drives the material forward and transports it until the material is extruded through the die head mechanism 2. After a period of use, when the screw 17 needs to be replaced to facilitate the inspection, cleaning and maintenance of the used screw 17, the first electric push rod 6 can be operated in the shutdown state to extend its telescopic end, so as to drive the limit block 7 away from the corresponding blind groove 10 and lift the limit block 7 from the corresponding blind groove 10. Then, the first motor 5 is operated to drive the corresponding first electric push rod 6 and the limit block 7 to rotate 90 degrees counterclockwise as a whole, so that the limit block 7 can be aligned with the corresponding through groove 9, so that the limit fixation of the end plate 8 can be released, so that the end plate 8 can move in the direction away from the flange 4 until the screw 17 is completely taken out of the machine body 1. Next, the second electric push rod 14 is operated to shrink its telescopic end, driving the fixing plate 15 to return to the corresponding groove 13, so that the fixing rod 16 is pulled out from the corresponding blind hole 20, thereby releasing the plug-in fixation of the mounting column 18, and then the mounting column 18 is pulled out to the right, so that the used screw rod 17 can be removed;

[0024] When installing a new screw rod 17, it is only necessary to first put the mounting column 18 onto the support seat 12, and then operate the second electric push rod 14 to extend its telescopic end, drive the fixing plate 15 to move toward the mounting column 18, until the fixing plate 15 presses against the groove wall of the mounting groove 19, and the fixing rod 16 is inserted into the corresponding blind hole 20, and the mounting column 18 can be inserted and fixed, thereby completing the fixed installation of the screw rod 17, and the installation is stable and does not affect subsequent use. After that, the screw rod 17 is extended into the body 1 and the entire end plate 8 is moved to the right until the end plate 8 presses against the flange, and the limit block 7 is aligned and passes through the corresponding through groove 9. Then, the first motor 5 is operated to drive the first electric push rod 6 and the limit block 7 to rotate clockwise 90 degrees as a whole, so that the limit block 7 can be aligned with the corresponding blind groove 10. Next, operate the first electric push rod 6 to shrink its telescopic end, which can drive the limit block 7 to approach the corresponding blind groove 10, until the limit block 7 is inserted into the corresponding blind groove 10, and the end plate 8 can be fixed in position, and then the extrusion process can be performed according to the above steps. In this way, the screw 17 can be quickly replaced through flexible and quick disassembly and assembly between the end plate 8 and the flange 4 and between the screw 17 and the output shaft of the second motor 11, which is simpler and more convenient to operate, and is more convenient to inspect and clean the screw 17 after use, and reduces the adverse effects on subsequent extrusion processing, which is more practical. The die head mechanism 2, the first motor 5, the first electric push rod 6, the second motor 11, the second electric push rod 14 and the screw 17 can all adopt the existing technology.

[0025] In this embodiment, the limiting block 7 is matched with the corresponding through slot 9 and blind slot 10 to ensure that the limiting block is smoothly plugged into place.

[0026] In this embodiment, the support seat 12 is matched with the installation groove 19 to ensure that the installation column 18 is smoothly inserted into place.

[0027] In this embodiment, the fixing rod 16 is matched with the corresponding blind hole 20 to ensure that the fixing rod 16 is smoothly inserted into place.

[0028] In this embodiment, a plurality of electric heaters 21 are evenly distributed on the outer side of the machine body 1 for heating and heat preservation during the extrusion process to ensure the temperature of the hot melt material, which can be achieved by using existing technology.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screw extruder for producing a PPH liquid storage tank, comprising a body, one end of the body is open, and the other end is equipped with a die head mechanism, and a feed port is opened on the top of the body near the open end, characterized in that: A flange is fixedly provided at the open end of the body, and a plurality of groups of first motors are fixedly mounted on the outer side of the body on the peripheral side of the open end and are evenly spaced at circumferential intervals, the output end of the first motor faces the flange and is coaxially fixedly connected to a first electric push rod, the telescopic end of the first electric push rod passes through the flange and is fixedly connected to a limiting block, an end plate is abutted against the flange, a plurality of groups of through slots are opened on the edge of the end plate, a blind slot perpendicular to the corresponding through slot is opened on the end plate on the side of each group of through slots away from the flange, the limiting blocks correspond to the through slots one by one and pass through the corresponding through slots and can be inserted in the corresponding blind slots after rotating ninety degrees, a second motor is fixedly mounted at the center of the side of the end plate away from the flange, the output shaft of the second motor passes through the end plate and is coaxially fixedly connected to A square support seat, wherein grooves are provided on the four sides of the support seat, and the support seats corresponding to the groove bottoms of the grooves are equipped with second electric push rods, the telescopic ends of the second electric push rods extend into the grooves and are fixedly connected with a fixing plate, and a plurality of fixing rods evenly distributed in a rectangular array are fixedly provided on a side of the fixing plate away from the corresponding second electric push rod, a screw is provided in the body, and a mounting column is coaxially fixedly connected to one end of the screw, and a square mounting groove is coaxially provided on a side of the mounting column away from the screw, and a plurality of blind holes are provided on the four side groove walls of the mounting groove, and the mounting column is sleeved on the outer side of the support seat through the mounting groove, and the fixing plate abuts against the groove wall of the corresponding mounting groove, and the fixing rods correspond to and are plugged into the blind holes on the groove wall of the corresponding mounting groove.

2. The screw extruder for producing a PPH liquid storage tank according to claim 1, characterized in that: The limit block is matched with the corresponding through slot and blind slot.

3. The screw extruder for producing a PPH liquid storage tank according to claim 1, characterized in that: The support seat is matched with the installation groove.

4. The screw extruder for producing a PPH liquid storage tank according to claim 1, characterized in that: The fixing rod is matched with the corresponding blind hole.

5. The screw extruder for producing a PPH liquid storage tank according to claim 1, characterized in that: A plurality of electric heaters are evenly distributed on the outer side of the machine body.

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