Feeding device of extruder

Abstract

The utility model belongs to the technical field of feeding of extruders, and provides a feeding device of an extruder, which comprises a charging barrel, a filtering mechanism and a clamping mechanism. The discharge port and the extruder port are communicated through the clamping mechanism, during feeding, plastic particles are placed on the filter disc, and then the low-speed motor is started to drive the transmission shaft, the mounting shaft and the multiple groups of driving levers to rotate, so that the plastic particles smaller than the filter size fall into the extruder port through the filter disc, and the plastic particles larger than the filter size are left on the top surface of the filter disc; when the filtered plastic particles need to be removed, the lifting assembly is adjusted to drive the top face of the filtering disc to be flush with the top face of the material containing opening, at the moment, the plastic particles left on the top face of the filtering disc can be removed by rotating the multiple sets of shifting rods, the filtered plastic particles can be conveniently removed from the filtering disc, and the use convenience of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extruder feeding, in particular to an extruder feeding device. Background Art

[0002] Film blowing, also known as flat-fold tube extrusion or blown film extrusion, is a primary method for producing plastic film. During film blowing, plastic pellets are fed into an extruder and melted.

[0003] For example, the Chinese patent application number 202322735783.5 discloses a feeding device for a plastic extruder, in which a feeding barrel is connected to the top of the feed pipe, a material tray is provided at the top of the inner cavity of the feeding barrel, connecting rods are provided at the bottom of the left and right sides of the inner cavity of the feeding barrel, a mounting plate is provided between the opposite surfaces of the connecting rods, a low-speed motor is installed on the top of the mounting plate, a motor shaft is provided on the top of the low-speed motor, and the material tray includes a chassis.

[0004] Most existing extruder feeding devices have simple structures. Although they can filter plastic particles to prevent larger plastic particles from falling into the extruder, it is not convenient to remove the filtered plastic particles from the filter screen, which reduces the convenience of using the device. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model proposes an extruder feeding device, which is convenient for removing filtered plastic particles from the filter disc and improves the convenience of using the device.

[0006] Extruder feeding device, comprising:

[0007] The barrel has a feeding port at the top and a discharge port at the bottom that is connected to the feeding port;

[0008] The filtering mechanism includes a filter disc, a lifting assembly and a low-speed motor. The filter disc is arranged in the feeding port through the lifting assembly. The lifting assembly is adjusted to drive the top surface of the filter disc to be flush with the top surface of the feeding port. A mounting shaft is coaxially and rotatably provided on the filter disc. A plurality of groups of shifting rods located on the top surface of the filter disc are provided on the circumference of the mounting shaft. A transmission shaft is coaxially and slidingly provided on the mounting shaft. The low-speed motor is arranged in the feeding port, and the output shaft is connected to the bottom end of the transmission shaft through a coupling; and

[0009] The clamping mechanism is arranged on the peripheral side of the discharge port and is used for clamping the extruder port when the discharge port is penetrated into the extruder port.

[0010] The beneficial effects of the above-mentioned extruder feeding device are:

[0011] The discharge port and the extruder feed port are connected through a clamping mechanism. When adding materials, the plastic particles are placed on the filter disc, and then the low-speed motor is started to drive the transmission shaft, the mounting shaft and multiple sets of levers to rotate, so that the plastic particles smaller than the filter size can pass through the filter disc and fall into the extruder feed port, while the plastic particles larger than the filter size remain on the top surface of the filter disc. When it is necessary to remove the filtered plastic particles, the lifting assembly is adjusted to drive the top surface of the filter disc to be flush with the top surface of the feeding port. At this time, the multiple sets of levers are rotated to remove the plastic particles remaining on the top surface of the filter disc, which facilitates the removal of the filtered plastic particles from the filter disc and improves the convenience of using the device.

[0012] In one embodiment, the lifting assembly includes electric telescopic rods; two sets of such electric telescopic rods are positioned opposite each other within the feed opening, with the telescopic ends of the two sets of electric telescopic rods connected to the bottom end of the filter tray. The two sets of electric telescopic rods can be controlled to extend synchronously to move the filter tray upward so that the top surface of the filter tray is flush with the top surface of the feed opening, conveniently aligning the top surface of the filter tray with the top surface of the feed opening. Furthermore, the two sets of electric telescopic rods can be controlled to retract synchronously to move the filter tray downward to reset the filter tray, thereby facilitating further feeding and filtering.

[0013] In one embodiment, a guide ring groove is provided at an angle around the barrel, and a purge port is provided at the lower end of the guide ring groove. Plastic particles removed from the filter disc fall into the guide ring groove and are subsequently discharged from the purge port under the guidance of the inclined guide ring groove, thereby facilitating the collection of plastic particles removed from the filter disc.

[0014] In one embodiment, the clamping mechanism includes a screw and a clamping block; three groups of guide rods are evenly arranged around the discharge port, and the three groups of guide rods extend radially along the discharge port. The top ends of the three groups of guide rods are rotatably provided with the screws in parallel. The three groups of guide rods are sleeved with the clamping blocks that can slide along their lengths, and the three groups of screws are respectively threadedly connected to the three groups of clamping blocks. By inserting the discharge port into the extruder feed port and positioning the three groups of clamping blocks around the extruder feed port, and then rotating the three groups of screws to engage with the three groups of clamping blocks, the three groups of clamping blocks are closed and moved. The closing and movement of the three groups of clamping blocks can clamp the extruder feed port. The device is easy to connect to the extruder feed port and is convenient for connecting to extruder feed ports of different sizes for feeding operations, thereby improving the practicality of the device.

[0015] In one embodiment, rubber pads are provided on the inner sides of the three sets of clamping blocks. The rubber pads prevent damage to the extruder orifice when the three sets of clamping blocks are moved together to clamp the extruder orifice, and increase the friction between the clamping blocks and the sides of the extruder orifice, thereby improving the stability of the connection between the device and the extruder orifice.

[0016] In one embodiment, the clamping mechanism further includes a linkage assembly, which is rotatably arranged on the peripheral side of the discharge port and connected to the three groups of screw rods. Rotating the linkage assembly can drive the three groups of screw rods to rotate synchronously.

[0017] In one embodiment, the linkage assembly includes a rotating ring, a bevel gear ring, and a bevel gear. The rotating ring is rotatably mounted around the discharge port. The bottom end of the rotating ring is provided with a coaxial bevel gear ring. The three sets of screw rods are each provided with coaxial bevel gears at opposite ends, and the three sets of bevel gears mesh with the bevel gear ring. Rotating the rotating ring drives the bevel gear ring, which rotates and meshes with the three sets of bevel gears to drive the three sets of screw rods to rotate synchronously. This facilitates the synchronous rotation of the three sets of screw rods and improves the ease of connection between the device and the extruder feed port.

[0018] In one embodiment, a plurality of handles are evenly arranged on the circumference of the rotating ring, so that the rotating ring can be rotated by holding the handles, and the rotating ring is convenient and labor-saving to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of an extruder feeding device in a filtering state provided by an embodiment of the present invention;

[0021] Figure 2 for Figure 1 The three-dimensional structural diagram of the extruder feeding device in the cleaning state is shown;

[0022] Figure 3 for Figure 1 An exploded view of the extruder feeding device is shown;

[0023] Figure 4 for Figure 1 An exploded view of the filtering mechanism in the extruder feeding device is shown;

[0024] Figure 5 for Figure 1 The clamping mechanism in the extruder feeding device is shown.

[0025] Reference numerals:

[0026] 1. Extruder feed port;

[0027] 10. Barrel; 101. Feeding port; 102. Discharge port; 1021. Guide rod; 1022. Connecting ring groove; 103. Guide ring groove; 1031. Clearing port;

[0028] 20. Filter plate; 201. Low-speed motor; 202. Mounting shaft; 2021. Through hole; 203. Drive lever; 204. Drive shaft; 2041. Limit slider; 205. Electric telescopic rod;

[0029] 30, screw; 301, clamping block; 3011, rubber pad;

[0030] 40. Rotating ring; 401. Bevel gear ring; 402. Bevel gear; 403. Handle; 404. Fixed ring. DETAILED DESCRIPTION

[0031] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0032] See also Figures 1 to 4 , the extruder feeding device in one embodiment includes a barrel 10, a filtering mechanism and a clamping mechanism.

[0033] The barrel 10 has a feeding port 101 at its top and a discharge port 102 at its bottom, connected to the feeding port 101. The filtering mechanism includes a filter disc 20, a lifting assembly, and a low-speed motor 201. The filter disc 20 is positioned within the feeding port 101 via the lifting assembly. Adjusting the lifting assembly can drive the top surface of the filter disc 20 to be flush with the top surface of the feeding port 101. A coaxial, rotatable mounting shaft 202 is provided on the filter disc 20. Multiple sets of levers 203 are provided around the mounting shaft 202, located on the top surface of the filter disc 20. A drive shaft 204 is coaxially and slidably provided on the mounting shaft 202. The low-speed motor 201 is positioned within the feeding port 101, and its output shaft is connected to the bottom end of the drive shaft 204 via a coupling. A clamping mechanism is provided around the discharge port 102 to clamp the extruder port 1 when the discharge port 102 is inserted into the extruder port 1.

[0034] In the above embodiment, the discharge port 102 and the extruder feed port 1 are connected by a clamping mechanism. When adding materials, plastic particles (not shown) are placed on the filter disc 20, and then the low-speed motor 201 is started to drive the transmission shaft 204, the installation shaft 202 and the multiple sets of levers 203 to rotate, so that the plastic particles smaller than the filter size can pass through the filter disc 20 and fall into the extruder feed port 1, while the plastic particles larger than the filter size remain on the top surface of the filter disc 20. When it is necessary to remove the filtered plastic particles, the top surface of the filter disc 20 is driven to be flush with the top surface of the feeding port 101 by adjusting the lifting assembly. At this time, the multiple sets of levers 203 can be rotated to remove the plastic particles remaining on the top surface of the filter disc 20, which facilitates the removal of the filtered plastic particles from the filter disc 20 and improves the convenience of using the device.

[0035] Specifically in the above embodiment, a through hole 2021 is coaxially opened on the installation shaft 202, the transmission shaft 204 is passed through the through hole 2021, a limiting groove is opened on the periphery of the through hole 2021, a limiting slider 2041 is provided on the periphery of the transmission shaft 204, and the limiting slider 2041 is slidably set in the limiting groove.

[0036] See also Figure 1 and Figure 2 In one embodiment, the lifting assembly includes an electric telescopic rod 205; two sets of electric telescopic rods 205 are relatively arranged in the feeding port 101, and the telescopic ends of the two sets of electric telescopic rods 205 are connected to the bottom end of the filter plate 20.

[0037] In the above embodiment, by controlling the synchronous extension of the two sets of electric telescopic rods 205, the filter plate 20 can be driven to move upward so that the top surface of the filter plate 20 is flush with the top surface of the feeding port 101, and it is convenient to drive the top surface of the filter plate 20 to be flush with the top surface of the feeding port 101, and by controlling the synchronous contraction of the two sets of electric telescopic rods 205, the filter plate 20 can be driven to move downward and reset, thereby facilitating the feeding and filtering again.

[0038] See also Figure 3 In one embodiment, a guide ring groove 103 is obliquely provided on the peripheral side of the barrel 10 , and a material clearing port 1031 is opened at the lower end of the guide ring groove 103 .

[0039] In the above embodiment, the plastic particles removed from the filter disc 20 will fall into the guide ring groove 103 and be discharged from the cleaning port 1031 under the inclined guiding effect of the guide ring groove 103, so as to facilitate the collection of the plastic particles removed from the filter disc 20.

[0040] See also Figure 1 、 Figure 3 and Figure 5 In one embodiment, the clamping mechanism includes a screw 30 and a clamping block 301; three groups of guide rods 1021 are evenly arranged around the discharge port 102, and the three groups of guide rods 1021 extend radially along the discharge port 102. The tops of the three groups of guide rods 1021 are all parallel and rotatably provided with screws 30, and the three groups of guide rods 1021 are all provided with clamping blocks 301 that can slide along their length directions. The three groups of screws 30 are respectively threadedly connected to the three groups of clamping blocks 301.

[0041] In the above embodiment, the discharge port 102 is passed through the extruder port 1, and the three groups of clamping blocks 301 are located around the extruder port 1. Then, the three groups of screws 30 are rotated respectively to engage with the three groups of clamping blocks 301 threads so that the three groups of clamping blocks 301 are closed and moved. The three groups of clamping blocks 301 are closed and moved to clamp the extruder port 1. The device is easy to connect to the extruder port 1 and is easy to connect to the extruder port 1 of different sizes for feeding operations, thereby improving the practicality of the device.

[0042] Further, the inner sides of the three groups of clamping blocks 301 are provided with rubber pads 3011. By providing the rubber pads 3011, damage to the extruder opening 1 caused by the three groups of clamping blocks 301 moving to clamp the extruder opening 1 can be avoided, and the friction between the clamping blocks 301 and the side of the extruder opening 1 can be improved, thereby improving the stability of the connection between the device and the extruder opening 1.

[0043] Please refer to Figure 1 and Figure 5 In an embodiment, the clamping mechanism further comprises a linkage assembly, which is rotatably arranged on the side of the discharge opening 102 and connected with the three groups of screws 30. Rotating the linkage assembly can drive the three groups of screws 30 to rotate synchronously. Specifically, the linkage assembly comprises a rotating ring 40, a bevel gear ring 401, and a bevel gear 402. The rotating ring 40 is rotatably sleeved on the side of the discharge opening 102, and the bottom end of the rotating ring 40 is provided with the coaxial bevel gear ring 401. The opposite ends of the three groups of screws 30 are provided with coaxial bevel gears 402, and the three groups of bevel gears 402 are engaged with the bevel gear ring 401.

[0044] In the above embodiment, rotating the rotating ring 40 drives the bevel gear ring 401 to rotate, and the bevel gear ring 401 rotating and engaging with the three groups of bevel gears 402 can drive the three groups of screws 30 to rotate synchronously. This method of driving the three groups of screws 30 to rotate synchronously is convenient, and improves the convenience of connecting the device with the extruder opening 1.

[0045] Specifically, in the above embodiment, a connecting ring groove 1022 is formed on the side of the discharge opening 102, and a fixed ring 404 is arranged on the inner side of the rotating ring 40, which is rotatably arranged in the connecting ring groove 1022.

[0046] Further, on the basis of the above embodiment, a plurality of handles 403 are uniformly arranged on the side of the rotating ring 40. The handles 403 are convenient to hold and rotate the rotating ring 40, which is convenient and labor-saving.

[0047] The specific implementation of the above extruder feeding device is as follows:

[0048] By inserting the discharge opening 102 into the extruder opening 1 and arranging the three groups of clamping blocks 301 on the side of the extruder opening 1, holding the handles 403 to rotate the rotating ring 40, rotating the rotating ring 40 drives the bevel gear ring 401 to rotate, and the bevel gear ring 401 rotating and engaging with the three groups of bevel gears 402 can drive the three groups of screws 30 to rotate synchronously. The three groups of screws 30 rotating synchronously and threadedly engaging with the three groups of clamping blocks 301 can drive the three groups of clamping blocks 301 to move to clamp the extruder opening 1, thereby fixing the device on the extruder opening 1. The device is convenient to connect with the extruder opening 1, and is convenient to connect with extruder openings 1 of different sizes for feeding operation, thereby improving the practicality of the device.

[0049] When feeding, the plastic particles are placed on the filter disc 20, and then the low-speed motor 201 is started to drive the transmission shaft 204, the mounting shaft 202 and the plurality of poking rods 203 to rotate, so that the plastic particles smaller than the filter size fall into the extruder hopper 1 through the filter disc 20, and the plastic particles larger than the filter size are left on the top surface of the filter disc 20. When it is necessary to remove the filtered plastic particles, the top surface of the filter disc 20 is adjusted to be flush with the top surface of the material placing opening 101 by the lifting assembly, and then the plurality of poking rods 203 are rotated to remove the plastic particles left on the top surface of the filter disc 20, so that the filtered plastic particles can be removed from the filter disc 20, improving the convenience of using the device. At the same time, the plastic particles removed from the filter disc 20 fall into the material guiding ring groove 103 and are concentratedly discharged from the material removing opening 1031 under the guiding effect of the inclined material guiding ring groove 103, so that the plastic particles removed from the filter disc 20 can be conveniently collected.

[0050] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. Extruder feeding device, characterized in that, include: The barrel (10) has a feeding port (101) at its top and a discharge port (102) at its bottom that communicates with the feeding port (101); A filtering mechanism comprises a filter disc (20), a lifting assembly and a low-speed motor (201); the filter disc (20) is arranged in the feeding port (101) through the lifting assembly; the lifting assembly is adjusted to drive the top surface of the filter disc (20) to be flush with the top surface of the feeding port (101); a coaxial and rotatable mounting shaft (202) is provided on the filter disc (20); a plurality of groups of shifting rods (203) located on the top surface of the filter disc (20) are provided on the circumference of the mounting shaft (202); a transmission shaft (204) is coaxially and slidably penetrated on the mounting shaft (202); the low-speed motor (201) is arranged in the feeding port (101), and the output shaft is connected to the bottom end of the transmission shaft (204) through a coupling; and A clamping mechanism is provided on the peripheral side of the discharge port (102) and is used for clamping the extruder port (1) when the discharge port (102) is inserted into the extruder port (1).

2. The extruder feeding device according to claim 1, characterized in that The lifting assembly includes an electric telescopic rod (205); two groups of the electric telescopic rods (205) are arranged opposite to each other in the material placement port (101), and the telescopic ends of the two groups of the electric telescopic rods (205) are connected to the bottom end of the filter plate (20).

3. The extruder feeding device according to claim 1, characterized in that A material guide ring groove (103) is obliquely provided on the circumferential side of the barrel (10), and a material clearing port (1031) is provided at the lower end of the material guide ring groove (103).

4. The extruder feeding device according to claim 1, characterized in that The clamping mechanism comprises a screw (30) and a clamping block (301); three groups of guide rods (1021) are evenly arranged around the discharge port (102), the three groups of guide rods (1021) all extend radially along the discharge port (102), the top ends of the three groups of guide rods (1021) are all rotatably provided with the screw (30) in parallel, the three groups of guide rods (1021) are all sleeved with the clamping block (301) that can slide along the length direction thereof, and the three groups of screw rods (30) are respectively threadedly connected to the three groups of clamping blocks (301).

5. The extruder feeding device according to claim 4, characterized in that The inner sides of the three groups of clamping blocks (301) are all provided with rubber pads (3011).

6. The extruder feeding device according to claim 4, characterized in that The clamping mechanism further comprises a linkage assembly, which is rotatably arranged around the discharge port (102) and connected to the three groups of screw rods (30). Rotating the linkage assembly can drive the three groups of screw rods (30) to rotate synchronously.

7. The extruder feeding device according to claim 6, characterized in that The linkage assembly comprises a rotating ring (40), a bevel gear ring (401) and a bevel gear (402); the rotating ring (40) is rotatably sleeved on the circumference of the discharge port (102); the bottom end of the rotating ring (40) is provided with a coaxial bevel gear ring (401); the opposite ends of the three groups of screws (30) are all provided with coaxial bevel gears (402); and the three groups of bevel gears (402) are all meshed with the bevel gear ring (401).

8. The extruder feeding device according to claim 7, characterized in that A plurality of groups of handles (403) are evenly arranged on the circumference of the rotating ring (40).

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