Extruding machine and machine barrel exhaust device thereof

Abstract

The invention relates to the technical field of machining instruments, in particular to an extruding machine and a machine barrel exhaust device thereof.The extruding machine comprises a machine barrel, a conveying groove is formed in the machine barrel, and an exhaust hole communicating with the conveying groove is formed; the extrusion screw rod is rotationally arranged in the machine barrel and is arranged in the length direction of the conveying groove; and the power assembly is arranged at one end of the machine barrel and is used for driving the extrusion screw rod to rotate. The device has the effects that air mixed in materials is reduced, and the influence on the product quality is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of processing equipment, and in particular to an extruder and a barrel exhaust device thereof. Background Art

[0002] At present, screw extruder is a commonly used material conveying equipment, which consists of a rotating screw and a stationary barrel. During operation, the material is put into the screw feed port, and then through the rotation of the screw, the material is pushed into the barrel, and finally, through the die at the extrusion port, the material is extruded out to form the desired shape and size.

[0003] Screw extruders are widely used in plastic product production and food processing. They have the advantages of high production efficiency, simple operation, and high molding precision. However, during product production, when the material is extruded and transported by the screw, it is inevitable that air will be mixed in, resulting in uneven materials. In order to avoid pores or bubbles on the surface of the product and ensure product quality, Summary of the invention

[0004] In order to reduce the amount of air mixed in the material and reduce the impact on product quality, the present application provides an extruder and a barrel exhaust device thereof.

[0005] In the first aspect, the present application provides an extruder, which adopts the following technical solution: An extruder, comprising: A barrel having a conveying groove formed therein and an exhaust hole communicated with the conveying groove; An extrusion screw rotates in the barrel and is arranged along the length direction of the conveying trough; A power assembly is arranged at one end of the barrel and is used to drive the extrusion screw to rotate.

[0006] By adopting the above technical solution, when conveying materials, the power assembly is used to drive the extrusion screw to rotate, and the extrusion screw drives the material to move along the barrel and convey it to the processing side. During the conveying process, the exhaust hole discharges the air in the material to make the material uniform, thereby reducing the appearance of pores or bubbles on the product surface caused by uneven materials, which affects the product quality.

[0007] Optionally, the conveying trough consists of two cylindrical troughs connected to each other, and the two extrusion screws rotate in the conveying trough.

[0008] By adopting the above technical solution, through the conveying trough composed of two adjacent cylindrical grooves, through the joint action of two extrusion screws, the interaction of materials on both sides is facilitated, the discharge of gas is more convenient, and the mixing of materials is made more uniform, reducing the occurrence of pores or bubbles on the product surface caused by uneven materials, which affects the product quality.

[0009] Optionally, the extrusion screw is formed by splicing multiple sections, and a plurality of stirring teeth are provided at the connection, and the plurality of stirring teeth are coaxially and staggeredly arranged.

[0010] By adopting the above technical solution, the multi-section extrusion screw is convenient for assembly and replacement of the equipment, and the stirring teeth are arranged to stir the material, which is convenient for increasing the disturbance of the material, facilitating the rapid discharge of gas, reducing the occurrence of material unevenness, and reducing the impact on product quality.

[0011] In the second aspect, the present application provides a barrel exhaust device, which adopts the following technical solution: A barrel exhaust device comprises an exhaust pipe arranged on the barrel, wherein the exhaust pipe is located on a side of the barrel away from the ground.

[0012] By adopting the above technical solution, when exhausting, the setting of the exhaust pipe can reduce the discharge of materials and reduce the direct drop of materials on the ground, which causes waste of resources.

[0013] Optionally, a spiral blade is rotatably arranged in the exhaust cylinder, and the spiral blade is used to reduce the discharge of materials from the exhaust hole; The exhaust pipe is provided with a driving assembly, which is connected to the spiral blade and drives the spiral blade to rotate.

[0014] By adopting the above technical solution, when conveying materials, the gas is discharged through the exhaust hole and the exhaust pipe. At the same time, some materials will overflow through the exhaust pipe. The driving component drives the spiral blade to rotate, and the spiral blade drives the material back to the barrel. The spiral blade and driving component are simple in structure and can reduce the overflow of materials, reduce resource waste, and reduce costs. At the same time, the material is pressed down to make the material compact and squeeze each other, thereby increasing the exhaust effect, making the material uniform, and reducing the impact on product quality.

[0015] Optionally, a discharge pipe is provided on the exhaust pipe, the discharge pipe bypasses the exhaust pipe, and an exhaust pipe is provided on the discharge pipe and is vertically arranged.

[0016] By adopting the above technical solution, when the spiral blade rotates, a small amount of material will be squeezed out along the gap between the spiral blade and the exhaust pipe, and discharged through the discharge pipe. The exhaust pipe is used for exhaust, reducing material blockage and affecting the exhaust effect.

[0017] Optionally, a clearing assembly is provided in the exhaust pipe, and the clearing assembly includes a cleaning plate, and the cleaning plate is located in the exhaust pipe and rotates along the inner wall of the exhaust pipe.

[0018] By adopting the above technical solution, when the product processing time increases, materials are likely to accumulate in the exhaust pipe. For fermented materials, long-term fermentation will affect product quality. By setting the cleaning plate, the materials are gathered and transported back to the barrel by the spiral blades. The dredging component is set to facilitate cleaning the gap between the spiral blades and the exhaust pipe. The cleaned materials are gathered on the cleaning plate and then brought back to the barrel by the spiral blades, thereby reducing the impact on product quality and the exhaust effect, so that the materials remain uniform and the impact on product quality is reduced.

[0019] Optionally, two cleaning plates are provided and connected, and both cleaning plates are provided with a clearance hole, and the two clearance holes are staggered in the vertical direction; The exhaust pipe is provided with a toggle assembly, and the toggle assembly includes: A lever, arranged on the outer edge of the spiral blade, can abut against the cleaning plate and drive the cleaning plate to rotate, and can be separated from the cleaning plate through the clearance hole; A reciprocating screw, the reciprocating screw being arranged on the exhaust pipe and rotating relative to the spiral blade; The screw sleeve is connected to the cleaning plate and is threadedly connected to the reciprocating screw.

[0020] By adopting the above technical solution, during the rotation of the spiral blade, the lever rotates with the spiral blade, the lever abuts against the cleaning plate and drives the cleaning plate to rotate, the cleaning plate drives the screw sleeve to slide along the reciprocating screw, so that the lever gradually enters the clearance hole of the cleaning plate abutting against it, and then passes through the spiral blade to separate from the cleaning plate and rotate. When the spiral blade drives the lever to rotate to correspond to another cleaning plate, the lever drives the cleaning plate to rotate, and the cleaning plate cleans the gap between the exhaust pipe and the spiral blade, and the cleaning plate drives the screw sleeve to approach the extrusion screw, so that the lever approaches the clearance hole on the cleaning plate until the lever slides into the clearance hole; through the above arrangement, the cleaning plate rotates intermittently and cleans the inner wall of the exhaust pipe, and reduces the long-term cleaning of the exhaust pipe, reduces the wear on the exhaust pipe, and the rotation of the cleaning plate does not require additional power, which is convenient for saving energy.

[0021] Optionally, the clearing assembly also includes a partition, which is arranged on the discharge pipe and located at one end close to the exhaust pipe, and the partition extends to the exhaust pipe to reduce the entry of materials into the exhaust pipe; an air inlet hole is opened on the partition, and the air inlet hole is connected to the exhaust pipe.

[0022] By adopting the above technical solution, when a small amount of material enters the discharge pipe, the provided partition isolates the material in the discharge pipe, so that the material is discharged through the discharge pipe, reducing the material entering the exhaust pipe, and the provided air inlet holes do not affect the gas discharge in the barrel, so that the exhaust effect can be maintained, the material remains uniform, and the impact on product quality is reduced.

[0023] Optionally, the discharge pipe is provided with a dredging component, and the dredging component comprises: A dredging plate is slidably disposed in the discharge pipe; A plurality of puncture needles are arranged on the dredging plate and can be inserted into the air inlet hole; The trigger member is arranged on the discharge pipe, and the cleaning plate can drive the trigger member to drive the dredging plate to slide when the cleaning plate rotates one circle.

[0024] By adopting the above technical solution, when the cleaning plate rotates, the trigger member drives the clearing plate to slide, and the clearing plate drives the needle to clean the air inlet hole, thereby reducing the blockage of the air inlet hole by the material, so that the exhaust effect can be maintained.

[0025] Optionally, the triggering member includes: A bullet block slides on the exhaust pipe and moves close to or away from the axis of the exhaust pipe; A driving block slides on the discharge pipe, is connected to the dredging plate, and abuts against the elastic block. The sliding of the elastic block can drive the driving block to slide; A return spring is arranged on the driving block and is used to drive the driving block away from the partition.

[0026] By adopting the above technical solution, when the cleaning plate abuts against the spring block, it drives the spring block to slide, the spring block drives the driving block to slide, the driving block drives the dredging plate to slide, the dredging plate drives the pin to approach the air inlet, and after the cleaning plate and the spring block are separated, the reset spring drives the pin to pull out of the air inlet; the trigger member has a simple structure and is separated from the air inlet after cleaning the air inlet, so that the exhaust effect can be maintained.

[0027] In summary, this application includes the following beneficial technical effects: 1. When conveying materials, the power assembly is used to drive the extrusion screw to rotate, and the extrusion screw drives the material to move along the barrel and convey it to the processing side. During the conveying process, the exhaust hole discharges the air in the material to make the material uniform, reducing the appearance of pores or bubbles on the product surface caused by uneven materials, which affects the product quality; 2. When conveying materials, the gas is discharged through the exhaust hole and the exhaust pipe. At the same time, some materials will overflow through the exhaust pipe. The driving component drives the spiral blade to rotate, and the spiral blade drives the materials back into the barrel. The spiral blade and the driving component are simple in structure and can reduce the overflow of materials, reduce resource waste, and reduce costs. At the same time, the materials are pressed down to make them compact and squeeze each other, thereby increasing the exhaust effect, making the materials uniform and reducing the impact on product quality; 3. During the rotation of the spiral blade, the lever rotates with the spiral blade, the lever abuts against the cleaning plate and drives the cleaning plate to rotate, the cleaning plate drives the screw sleeve to slide along the reciprocating screw, so that the lever gradually enters the clearance hole of the cleaning plate abutting against it, and then passes through the spiral blade to separate from the cleaning plate and rotate. When the spiral blade drives the lever to rotate to correspond to another cleaning plate, the lever drives the cleaning plate to rotate, and the cleaning plate cleans the gap between the exhaust pipe and the spiral blade, and the cleaning plate drives the screw sleeve close to the extrusion screw, so that the lever abuts against the clearance hole on the cleaning plate until the lever slides into the clearance hole; through the above arrangement, the cleaning plate rotates intermittently and cleans the inner wall of the exhaust pipe, and reduces the long-term cleaning of the exhaust pipe, reduces the wear on the exhaust pipe, and the rotation of the cleaning plate does not require additional power, which is convenient for saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the extruder in Example 1 of the present application; Figure 2 This is a schematic diagram of the structure of the extrusion screw in Example 1 of the present application; Figure 3 This is a schematic diagram of the structure of the conveying trough in Example 1 of the present application; Figure 4 This is a schematic diagram of the structure of the spiral blade in Example 1 of the present application; Figure 5 This is a schematic diagram of the installation position of the anti-blocking component in Example 2 of the present application; Figure 6 This is a schematic diagram of the structure of the dredging component in Example 2 of the present application; Figure 7 for Figure 5 A magnified view of middle; Figure 8 for Figure 5 Enlarged view of B.

[0029] 1. The machine barrel is provided with a plurality of cylinders, and the plurality of cylinders are provided with a plurality of cylinders, and the plurality of cylinders are provided with a plurality of cylinders. The plurality of cylinders are provided with a plurality of cylinders, and the plurality of cylinders are provided with a plurality of cylinders. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Figure 8 This application is described in further detail.

[0031] The embodiment of the present application discloses an extruder.

[0032] Embodiment 1: refer to Figure 1 and Figure 2 The extruder includes a barrel 100, an extrusion screw 200 rotatably disposed in the barrel 100, a power assembly 300 disposed at one end of the barrel 100 and used to drive the extrusion screw 200 to rotate, and an exhaust device 500 disposed on the barrel 100 for exhausting gas; when conveying materials, the power assembly 300 drives the extrusion screw to rotate, the extrusion screw carries the materials forward, and the materials are exhausted through the exhaust device 500, so that the extrusion screw 200 can uniformly convey the materials to the processing site.

[0033] refer to Figure 2 and Figure 3 A conveying groove 110 is formed in the barrel 100, and the conveying groove 110 is composed of two cylindrical grooves interconnected with each other. A feeding hole is opened on the barrel 100 and a feeding hopper 120 is fixedly connected; the two cylindrical grooves are rotatably connected with extrusion screws 200, the barrel 100 is formed by a plurality of barrel sections 130 connected by bolts, and the extrusion screw 200 is also formed by splicing multiple sections, and the splicing seam corresponds to the connection of the barrel section 130, and a plurality of stirring teeth 400 are fixedly connected at the connection of the extrusion screw 200, and three stirring teeth 400 are coaxially and staggered in this embodiment; the power assembly 300 includes a double-axis reducer, and the reducer is connected to the two extrusion screws 200 through a coupling. The two extrusion screws 200 can be set to screws with opposite or same spiral directions according to needs, and the rotation direction of the two extrusion screws 200 can be set according to needs, and can rotate in the same direction or in the opposite direction; the present embodiment is preferably two screws rotating in the same direction and having the same spiral direction.

[0034] refer to Figure 3 and Figure 4 An exhaust hole is provided on the side of the barrel 100 away from the ground, and the exhaust hole is located at the connection of the two cylindrical grooves and is connected to the cylindrical grooves; the exhaust device 500 includes an exhaust cylinder 510 detachably connected to the barrel 100 by bolts, and the exhaust cylinder 510 is connected to the exhaust hole, and a spiral blade 520 is rotatably connected inside the exhaust cylinder 510, and the spiral blade 520 extends to the exhaust hole, and the rotation of the spiral blade 520 drives the material to approach the axis of the barrel 100; a driving assembly 530 is provided at one end of the exhaust cylinder 510 away from the ground, and the driving assembly 530 is a driving motor detachably connected to the end of the exhaust cylinder 510 away from the ground by bolts, and the output shaft of the driving motor is connected to the shaft key of the spiral blade 520 and drives the spiral blade 520 to rotate.

[0035] A discharge pipe 540 is bypass-connected to the side wall of the exhaust pipe 510 . The discharge pipe 540 is horizontally arranged and parallel to the axis of the barrel 100 . An exhaust pipe 550 is fixedly connected to the discharge pipe 540 . The exhaust pipe 550 is vertically arranged and communicated with the discharge pipe 540 . The axis of the exhaust pipe 550 is parallel to the axis of the exhaust pipe 510 .

[0036] This equipment is suitable for conveying a variety of materials, especially in the plastic, extrusion molding industry, and food processing industry. By setting the exhaust holes, the air holes of the products can be reduced.

[0037] The implementation principle of Example 1 of the present application is as follows: the extruder can be used for food processing or plastic product processing. When conveying materials, the materials are placed in the feed hopper 120, and then the extrusion screw 200 is driven to rotate by a reducer, and the extrusion screw 200 drives the materials forward, and the materials are evenly mixed and move forward along the barrel 100; the gas between the materials enters the exhaust cylinder 510 through the exhaust hole, and then enters the exhaust pipe 550 through the exhaust cylinder 510; the drive motor is started, and the drive motor drives the spiral blade 520 to rotate, and the spiral blade 520 squeezes the material that rises during exhaust back into the barrel 100, thereby increasing the disturbance of the material and accelerating the exhaust of gas, while reducing the waste caused by material extrusion; when material is extruded, it is discharged through the discharge pipe 540.

[0038] Embodiment 2: refer to Figure 5 , Figure 6 and Figure 7The difference between this embodiment and embodiment 1 is that a dredging assembly 560 is provided on the exhaust pipe 510, and the dredging assembly 560 includes two cleaning plates 561 rotatably connected to the exhaust pipe 510, and one end of the two cleaning plates 561 is fixedly connected to a connecting ring 562, which is sleeved on the axis of the spiral leaf 520 and can slide along the axis; a plurality of clearance holes 563 are opened on the side of the cleaning plate 561 close to the spiral leaf 520, and the clearance holes 563 on the two cleaning plates 561 are staggered and arranged at equal intervals along the length of the cleaning plate 561; in order to facilitate the rotation of the cleaning plate 561, a toggle assembly 570 is provided in the exhaust pipe 510, and the toggle assembly 570 includes a screw fixedly connected to the connecting plate 520, and a screw fixedly connected to the connecting plate 520 is provided on the side of the cleaning plate 561 close to the spiral leaf 520. The sleeve 573 is rotatably connected to the exhaust pipe 510 and can slide along the length direction of the exhaust pipe 510; the sleeve 573 is threadedly connected with a reciprocating screw 572, the reciprocating screw 572 is fixedly connected to the exhaust pipe 510 and has a sleeve hole formed in the middle, and the sleeve hole is sleeved on the output shaft of the driving motor; the reciprocating screw 572 is provided with a reciprocating thread, and the sleeve 573 can rotate and slide along the reciprocating screw 572; a plurality of levers 571 are fixedly connected to the spiral leaf 520, the levers 571 correspond to the number of the clearance holes 563 on a single cleaning plate 561, and the rotation of the lever 571 can drive the cleaning plate 561 to rotate, and the lever 571 can slide through the clearance hole 563 and have a relative displacement with the cleaning plate 561.

[0039] The clearing assembly 560 also includes a partition 580 fixedly connected to the discharge pipe 540, and the partition 580 separates the discharge pipe 540 from the exhaust pipe 550, so that the material slides along the discharge pipe 540 after entering the discharge pipe 540, thereby reducing the material from entering the exhaust pipe 550; in order to maintain the exhaust effect of the exhaust pipe 550, a plurality of air inlet holes are opened on the partition 580, and the air inlet holes are connected to the exhaust pipe 550 and are inclined to reduce the material squeezed upward from being directly squeezed into the air inlet holes.

[0040] In order to reduce the blockage of the air inlet holes by materials, an anti-blocking component 590 is provided on the exhaust pipe 550, and the anti-blocking component 590 includes a clearing plate 591 slidably connected to the discharge pipe 540, and a plurality of puncture needles 592 are fixedly connected to the clearing plate 591. The number of the puncture needles 592 corresponds to the number of the air inlet holes, and the puncture needles 592 can be inserted into the air inlet holes along with the clearing plate 591; a trigger member is provided on the exhaust tube 510, and the trigger member is trigger-connected to the cleaning plate 561, and the trigger member can drive the clearing plate 591 to slide.

[0041] refer to Figure 8The triggering member includes a spring block 593 slidably connected to one side of the exhaust pipe 510, and a guide surface 597 is provided at one end of the spring block 593 located in the exhaust pipe 510. The guide surface 597 is inclined, and the end of the guide surface 597 close to the axis of the exhaust pipe 510 is inclined along the rotation direction of the cleaning blade; the outer side of the exhaust pipe 510 is fixedly connected to a limit plate 599, and the limit plate 599 is located outside the exhaust pipe 510; the outer side of the exhaust pipe 510 is fixedly connected to a tightening spring, which is connected to the limit plate 599 and drives the limit plate 599 to approach the exhaust pipe 510; the discharge pipe 540 is slidably connected to The driving block 594 extends into the discharge pipe 540 and is connected to the clearing plate 591. One end of the driving block 594 abuts against the spring block 593, and a driving surface 598 is provided at the end of the driving block 594 abutting against the spring block 593. The driving surface 598 is inclined and the end away from the clearing plate 591 is inclined in the direction away from the exhaust pipe 510. In order to facilitate the rapid removal of the needle 592 after the air inlet hole is cleared, a return spring 595 is fixedly connected to the discharge pipe 540. The return spring 595 is connected to the driving block 594 and drives the driving block 594 away from the discharge pipe 540.

[0042] In other embodiments, a discharge auger may be disposed in the discharge pipe 540 , and the discharge auger is close to a side of the discharge pipe 540 away from the partition 580 for discharging the material.

[0043] In the food processing industry, the device can effectively reduce the fermentation damage of materials retained in the exhaust pipe 510 through the arrangement of the cleaning plate 561 and the exhaust pipe 510, reduce the impact on product quality, reduce the formation of bacterial colonies, and improve food safety.

[0044] The implementation principle of Example 2 of the present application is: when conveying materials, the materials are placed in the feed hopper 120, and then the extrusion screw 200 is driven to rotate by the reducer, and the extrusion screw 200 drives the materials forward, and the materials are evenly mixed and move forward along the barrel 100; the gas between the materials enters the exhaust cylinder 510 through the exhaust hole, and then enters the exhaust pipe 550 through the exhaust cylinder 510; the drive motor is started, and the drive motor drives the spiral blade 520 to rotate, and the spiral blade 520 squeezes the material that rises during exhaust back into the barrel 100, thereby increasing the disturbance of the material and accelerating the exhaust of gas, while reducing the waste caused by material extrusion; when material is extruded, it is discharged through the discharge pipe 540.

[0045] During the rotation of the spiral leaf 520, the lever 571 rotates with the spiral leaf 520, the lever 571 contacts the cleaning plate 561 and drives the cleaning plate 561 to rotate, and the cleaning plate 561 drives the screw sleeve 573 to slide along the reciprocating screw 572, so that the lever 571 gradually enters the clearance hole 563 of the cleaning plate 561 contacting it, and then passes through the spiral leaf 520 to separate from the cleaning plate 561 and rotate. When the spiral leaf 520 drives the lever 571 to rotate to correspond to the other cleaning plate 561, the lever 571 is rotated to the corresponding cleaning plate 561. When the lever 571 is in rotation, the cleaning plate 561 is driven to rotate, and the cleaning plate 561 cleans the gap between the exhaust pipe 510 and the spiral blade 520. The cleaning plate 561 drives the screw sleeve 573 to approach the extrusion screw, so that the lever 571 is close to the clearance hole 563 on the cleaning plate 561 until the lever 571 slides into the clearance hole 563; the cleaning plate 561 rotates to clean the inner wall of the exhaust pipe 510 and gather the materials, and the materials are scraped off by the spiral blade 520 and continue to return to the barrel 100.

[0046] When the material rises along the gap between the exhaust cylinder 510 and the spiral blade 520 to the discharge pipe 540, the material abuts against the partition plate 580 and slides in the length direction of the discharge pipe 540, and the air enters the air inlet hole for discharge, and part of the material enters the air inlet hole. As the cleaning plate 561 rotates, the cleaning plate 561 abuts against the guide surface 597, causing the spring block 593 to slide, and the spring block 593 overcomes the elastic force of the abutting spring 596 and drives the driving block 594. The driving block 594 overcomes the elastic force of the reset spring 595 to drive the clearing plate 591 to slide, and the clearing plate 591 drives the insertion pin to be inserted into the air inlet hole; when the cleaning plate 561 passes over the spring block 593, the abutment spring 596 drives the spring block 593 to approach the axis of the exhaust pipe 510, and at the same time the reset spring 595 drives the driving block 594 away from the discharge pipe 540, so that the driving block 594 drives the clearing plate 591 and the puncture needle 592 away from the partition 580.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An extruder, characterized in that: include: A barrel (100) is formed with a conveying groove (110) therein and an exhaust hole communicating with the conveying groove (110); An extrusion screw (200) rotates in the barrel (100) and is arranged along the length direction of the conveying trough (110); A power assembly (300) is arranged at one end of the barrel (100) and is used to drive the extrusion screw (200) to rotate.

2. The extruder according to claim 1, characterized in that The conveying trough (110) is composed of two cylindrical troughs that are interconnected, and the two extrusion screws (200) rotate in the conveying trough (110).

3. The extruder according to claim 1, characterized in that The extrusion screw (200) is formed by splicing together multiple sections, and a plurality of stirring teeth (400) are provided at the connection points, and the plurality of stirring teeth (400) are coaxially and staggeredly arranged.

4. A barrel exhaust device applied to an extruder according to any one of claims 1 to 3, comprising an exhaust pipe (510) arranged on the barrel (100), wherein the exhaust pipe (510) is located on a side of the barrel (100) away from the ground.

5. The barrel exhaust device according to claim 4, characterized in that: A spiral blade (520) is rotatably disposed in the exhaust cylinder (510), and the spiral blade (520) is used to reduce the discharge of materials from the exhaust hole; The exhaust pipe (510) is provided with a driving assembly (530), which is connected to the spiral blade (520) and drives the spiral blade (520) to rotate.

6. The barrel exhaust device according to claim 5, characterized in that: The exhaust pipe (510) is provided with a discharge pipe (540), the discharge pipe (540) bypasses the exhaust pipe (510), and an exhaust pipe (550) is provided on the discharge pipe (540) and is arranged vertically.

7. The barrel exhaust device according to claim 6, characterized in that: A dredging assembly (560) is arranged in the exhaust pipe (510), and the dredging assembly (560) comprises a cleaning plate (561). The cleaning plate (561) is located in the exhaust pipe (510) and rotates along the inner wall of the exhaust pipe (510).

8. The barrel exhaust device according to claim 7, characterized in that: Two cleaning plates (561) are provided and connected to each other, and each of the two cleaning plates (561) is provided with a clearance hole (563), and the two clearance holes (563) are staggered in the vertical direction; The exhaust pipe (510) is provided with a toggle assembly (570), and the toggle assembly (570) comprises: A lever (571) is disposed on the outer edge of the spiral blade (520), can abut against the cleaning plate (561) and drive the cleaning plate (561) to rotate, and can be separated from the cleaning plate (561) through the clearance hole (563); a reciprocating screw (572), the reciprocating screw (572) being arranged on the exhaust cylinder (510) and rotating relative to the spiral blade (520); The screw sleeve (573) is connected to the cleaning plate (561) and is threadedly connected to the reciprocating screw rod (572).

9. The barrel exhaust device according to claim 7, characterized in that: The dredging assembly (560) further comprises a partition (580), wherein the partition (580) is arranged on the discharge pipe (540) and is located at one end close to the exhaust pipe (510), and the partition (580) extends to the exhaust pipe (550) to reduce the entry of materials into the exhaust pipe (550); an air inlet hole is provided on the partition (580), and the air inlet hole is connected to the exhaust pipe (550).

10. The barrel exhaust device according to claim 9, characterized in that: The discharge pipe (540) is provided with a dredging assembly (560), and the dredging assembly (560) comprises: A dredging plate (591) slidably disposed in the discharge pipe (540); A plurality of puncture needles (592) are disposed on the dredging plate (591) and can be inserted into the air inlet hole; A triggering member is arranged on the discharge pipe (540), and one rotation of the cleaning plate (561) can drive the triggering member to drive the dredging plate (591) to slide.

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