Anti-blocking double-rod screw extruder

Abstract

The anti-blocking double-rod screw extruder comprises a first shell and a second shell, a feeding groove is formed in the first shell, the upper section of the feeding groove is in a horn shape, the lower section of the feeding groove is in a square tube shape, a striker plate is connected into one side of the feeding groove in a sliding mode, a connecting rod is arranged at the bottom end, located outside the feeding groove, of the striker plate, a guide groove is formed in the connecting rod, and the guide groove is communicated with the feeding groove. A guide groove is formed in the first shell, a motor is arranged on the first shell, an eccentric connecting rod is connected to an output shaft of the motor, a shifting shaft is connected to the eccentric connecting rod, and the shifting shaft is connected into the guide groove in a sliding mode. According to the feeding device, the material blocking plate is arranged in the feeding groove, so that the material blocking plate reciprocates in the feeding groove in the horizontal direction, the circulating process of stopping feeding of plastic particles in the feeding groove, increasing the feeding amount and reducing the feeding amount is achieved, a short interval is provided for processing of the plastic particles in the extruder, and the blocking problem is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to double -screw extruder technical field especially relates to a kind of anti -stuffy double -screw extruder. BACKGROUND

[0002] The utility model with publication number CN217891790U discloses a precise double-screw extruder, relates to the technical field of double-screw extruder, and includes shell, the shell is fixedly connected with feed hopper, one end of shell is fixedly connected with equipment box, the inside of shell is fixedly connected with electromagnetic heating ring, the shell is fixedly connected with connecting column, the inside of shell is symmetrically provided with mounting groove, two mounting grooves are provided with screw rod, the one end of same position of two screw rods is fixedly connected with gear, the gear is engaged with each other between two gears, one of the gear is engaged with the power assembly in equipment box for providing power for screw rod, feed hopper is connected with anti-blocking assembly. By rotating rod in anti-blocking assembly, rotating rod rotates in the inside circumference of feed hopper, by the spiral channel formed between the spiral blade fixedly connected on rotating rod, not only can the larger particles be cut, but also the spiral channel can be used to transport materials more quickly, to prevent the feed hopper from being blocked.

[0003] The prior art realizes feeding effect by spiral rotation of spiral blade, but in actual use, due to too fast feeding speed, it is easy to cause blockage at the position where plastic particles just contact double screw, and when blockage occurs, the prior art is not convenient for clearing the double screw, so an anti-blocking double-screw extruder is needed to meet people's needs. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an anti-blocking double-screw extruder to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: an anti-blocking double-screw extruder, comprising a first shell and a second shell, the first shell is provided with a feeding slot, the upper section of the feeding slot is trumpet-shaped, the lower section is square tube-shaped, and a baffle plate is slidably connected to one side inside the feeding slot, a connecting rod is provided on the bottom end of the baffle plate outside the feeding slot, a guide groove is formed in the connecting rod, a motor is provided on the first shell, an eccentric link is connected to the output shaft of the motor, a driving shaft is connected to the eccentric link, the driving shaft is slidably connected in the guide groove, a slot is formed in the first shell, the second shell is slidably connected to the slot, a first U-shaped block is provided on the first shell, a second U-shaped block is provided on the second shell, and the second U-shaped block and the first U-shaped block are connected by bolts and nuts.

[0006] Preferably, a slot is formed in one side of the lower section of the feeding slot, and the baffle plate is slidably fitted in the slot.

[0007] Preferably, the material blocking plate is located on the upper end of one side of the feeding groove in an inclined manner.

[0008] Preferably, a spring is connected between the connecting rod and the lower section of the feeding groove.

[0009] Preferably, a guide rail is connected to the notch, the guide rail is trapezoidal, and the second shell is slidingly connected to the guide rail.

[0010] Preferably, a plug plate is connected to one end of the second shell and is plugged into the vertical section sidewall of the notch.

[0011] Preferably, a support shaft is connected to the outer wall of the nut, the support shaft is rotationally connected to the second U-shaped block, and the threaded section of the bolt close to the nut is embedded in the first U-shaped block.

[0012] The utility model discloses the beneficial effect is:

[0013] In the utility model, the eccentric connecting rod is driven by the motor to make circumferential motion, linkage effect between the driving shaft and the guide groove is generated, the connecting rod is connected, the material blocking plate moves reciprocatingly in the horizontal direction in the feeding groove, the circulation process of stopping feeding-expanding feeding amount-reducing feeding amount of the plastic particles in the feeding groove is realized, and the processing temporary interval of the plastic particles in the extruder is provided, and the problem of effectively preventing blockage occurs.

[0014] In the utility model, the first shell and the second shell are designed in a split type, the separable effect between the second shell and the first shell is realized, the purpose that the double screw rods in the extruder can be exposed to the outside is realized, and then the double screw rods are conveniently cleared when being blocked. ACCURATE DRAWINGS

[0015] Figure 1 A structural schematic view of the anti-blocking double-rod spiral extruder is provided for the utility model;

[0016] Figure 2 A first shell structure schematic view of the anti-blocking double-rod spiral extruder is provided for the utility model;

[0017] Figure 3 A second shell structure schematic view of the anti-blocking double-rod spiral extruder is provided for the utility model;

[0018] Figure 4 A front view cross-sectional structure schematic view of the anti-blocking double-rod spiral extruder is provided for the utility model;

[0019] Figure 5 A front view cross-sectional structure schematic view of the anti-blocking double-rod spiral extruder is provided for the utility model; Figure 4 An enlarged structure schematic view of the utility model at A place;

[0020] Figure 6 The utility model provides a bolt overhead section structure schematic diagram of anti -blocking double -screw extruder.

[0021] In the figure: 1, first casing, 2, second casing, 3, feed slot, 4, baffle, 5, connecting rod, 6, guide groove, 7, motor, 8, eccentric link, 9, shift shaft, 10, slot, 11, first U-shaped block, 12, second U-shaped block, 13, bolt, 14, nut, 15, slot, 16, spring, 17, guide rail, 18, plugboard, 19, support shaft. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] Reference Figures 1-6 A kind of anti -blocking double -screw extruder, including first casing 1 and second casing 2, first casing 1 is provided with feed slot 3, the upper section of feed slot 3 is trumpet-shaped, lower section is square tube, and one side is slidably connected with baffle 4, baffle 4 is located on the bottom end outside feed slot 3 and is provided with connecting rod 5, connecting rod 5 is provided with guide groove 6, first casing 1 is provided with motor 7, the output shaft of motor 7 is connected with eccentric link 8, eccentric link 8 is connected with shift shaft 9, shift shaft 9 is slidably connected in guide groove 6, slot 10 is formed in first casing 1, second casing 2 is slidably connected in slot 10, first casing 1 is provided with first U-shaped block 11, second casing 2 is provided with second U-shaped block 12, second U-shaped block 12 and first U-shaped block 11 are connected by bolt 13 and nut 14.

[0024] eccentric link 8 is driven by motor 7 to carry out circumferential motion, so that linkage effect between shift shaft 9 and guide groove 6 is generated, by the connection of connecting rod 5, baffle 4 is moved reciprocatingly in horizontal direction in feed slot 3, so that the circulation process of stopping feeding-expanding feeding amount-reducing feeding amount of plastic particles in feed slot 3 is realized, further provides the short interval of processing for plastic particles in the inside of extruder, effectively prevents the problem of blocking, by split design between first casing 1 and second casing 2, the separable effect between second casing 2 and first casing 1 is realized, so that the purpose that double screw rod in the inside of extruder can be exposed to outside is realized, further facilitates the de-blocking operation to double screw rod when blocking.

[0025] Specifically, in the embodiment, slot 15 is formed in one side of lower section of feed slot 3, baffle 4 is slidably fitted in slot 15, to provide sliding space for baffle 4, and prevent the problem of material leakage during the sliding of baffle 4.

[0026] Specifically, in the embodiment, the material blocking plate 4 is located on the upper end of one side of the feeding groove 3 in an inclined manner, preventing the end of the material blocking plate 4 from being extruded by the inner wall of the feeding groove 3 to generate a gap, thereby improving the sealing performance of the material blocking plate 4 when the feeding is stopped.

[0027] Specifically, in the embodiment, the spring 16 is connected between the connecting rod 5 and the lower section of the feeding groove 3, providing smoothness for the connecting rod 5 to drive the material blocking plate 4 to insert into the feeding groove 3, and avoiding the jamming problem caused by inertia during the cooperation of the shaft 9 and the guide groove 6.

[0028] Specifically, in the embodiment, the guide rail 17 is connected to the notch 10, the guide rail 17 is in a trapezoidal shape, and the second shell 2 is slidingly connected to the guide rail 17, thereby improving the connection effect between the second shell 2 and the first shell 1, preventing vertical separation, and achieving the effect of being slidable in the horizontal direction.

[0029] Specifically, in the embodiment, the plug plate 18 is connected to one end of the second shell 2 and is inserted into the vertical section sidewall of the notch 10, thereby improving the sealing effect of the vertical connection part between the second shell 2 and the first shell 1 and preventing material leakage.

[0030] Specifically, in the embodiment, the support shaft 19 is connected to the outer wall of the nut 14 and is rotatably connected to the second U-shaped block 12, and the threaded section of the bolt 13 close to the nut is embedded in the first U-shaped block 11, thereby improving the overall effect between the nut 14 and the second U-shaped block 12 and making the second shell 2 more convenient to assemble and disassemble.

[0031] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A twin-screw extruder with anti-jamming, comprising a first housing (1) and a second housing (2), characterized in that: The first shell (1) is provided with a feeding trough (3), the upper section of the feeding trough (3) is trumpet-shaped, the lower section is square tube-shaped, and one side is slidably connected with a baffle (4), the baffle (4) is provided with a connecting rod (5) on the bottom end outside the feeding trough (3), the connecting rod (5) is provided with a guide groove (6), the first shell (1) is provided with a motor (7), the output shaft of the motor (7) is connected with an eccentric connecting rod (8), the eccentric connecting rod (8) is connected with a stirring shaft (9), the stirring shaft (9) is slidably connected in the guide groove (6), the first shell (1) is provided with a slot (10), the second shell (2) is slidably connected in the slot (10), the first shell (1) is provided with a first U-shaped block (11), the second shell (2) is provided with a second U-shaped block (12), and the second U-shaped block (12) and the first U-shaped block (11) are connected through bolts (13) and nuts (14).

2. A twin-screw extruder with anti-jamming according to claim 1, characterized in that: The lower section of the feeding trough (3) is provided with a slot (15) on one side, and the baffle (4) is slidably fitted in the slot (15).

3. A twin-screw extruder with anti-jamming according to claim 1, characterized in that: The baffle (4) is inclined on one side of the upper end of the feeding trough (3).

4. A twin-screw extruder with anti-jamming according to claim 1, characterized in that: The connecting rod (5) is connected with the spring (16) between the lower section of the feeding trough (3).

5. A twin-screw extruder with anti-jamming according to claim 1, characterized in that: The slot (10) is connected with a guide rail (17), the guide rail (17) is trapezoidal, and the second shell (2) is slidably connected with the guide rail (17).

6. A twin-screw extruder with anti-jamming according to claim 1, characterized in that: One end of the second shell (2) is connected with a plug plate (18), and the plug plate (18) is inserted into the vertical section side wall of the slot (10).

7. A twin-screw extruder with anti-jamming according to claim 1, characterized in that: The outer wall of the nut (14) is connected with a supporting shaft (19), the supporting shaft (19) is rotatably connected in the second U-shaped block (12), and the threaded section of the bolt (13) close to the nut is embedded in the first U-shaped block (11).

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