Polylactic acid fiber tow filter stick forming device

Abstract

The utility model discloses a polylactic acid fiber tow filter stick forming device, and relates to the technical field of filter stick forming, the polylactic acid fiber tow filter stick forming device comprises a machine body and a top frame fixedly arranged at the top of the machine body, a dust collection assembly is arranged at the top of the top frame and used for absorbing flying chips adhered to the surface of a polylactic acid fiber tow, and a forming assembly is arranged in the machine body. The dust collection assembly is used for polylactic acid fiber tow filter stick forming and comprises a fixing box, the fixing box is fixedly arranged at the top of the top frame, and an air pump is fixedly arranged in the fixing box. Flying chips adhering to polylactic acid fiber tows are absorbed through the sucking pump and conveyed to the bottom end of the interior of the collecting box to be collected, so that the flying chips are prevented from affecting the forming quality of polylactic acid fiber tow filter sticks, and the quality of the polylactic acid fiber tow filter sticks is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of filter rod forming technology, specifically a polylactic acid fiber tow filter rod forming device. Background Technology

[0002] Polylactic acid (PLA) fiber is made from starchy agricultural products such as corn, wheat, and sugar beets. The raw materials are fermented to produce lactic acid, which is then polymerized and melt-spun. PLA fiber is a synthetic fiber whose raw materials are readily available and easy to cultivate, and whose waste is biodegradable in nature. The processing of PLA fiber tow into filter rods mainly consists of two parts: opening and gluing, and forming and slitting. These processes are completed by an opening and gluing machine and a filter rod forming machine, respectively.

[0003] For example, a polylactic acid fiber tow filter rod forming device according to Chinese patent application number CN201720315954.0 can be used to realize the forming process, including a cylindrical feed roller, a pressure roller, and a guide bell mouth; the outer surface of the feed roller and the pressure roller is a smooth layer that does not adhere to the polylactic acid fiber tow, and the inner surface of the guide bell mouth is a smooth layer that does not adhere to the polylactic acid fiber tow. The smooth layer can be integrally set with the feed roller, the pressure roller, and the guide bell mouth or not, which is convenient, feasible, and low in cost.

[0004] However, in actual use, after long-term use, the surface of the polylactic acid fiber bundles is prone to sticking with dust particles, which are easily adsorbed onto the surface of the filter rods during manufacturing and are difficult to clean later, thus having limitations. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a polylactic acid fiber tow filter rod forming device. This device uses a vacuum pump to absorb the debris adhering to the polylactic acid fiber tow and transports it to the bottom of a collection box for collection. This prevents the debris from affecting the quality of the polylactic acid fiber tow filter rod forming, ensuring the quality of the filter rod and effectively solving the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a polylactic acid fiber tow filter rod forming device, comprising a body and a top frame fixedly disposed on the top of the body;

[0007] The top of the top frame is equipped with a dust collection component for absorbing the dust adhering to the surface of the polylactic acid fiber bundles.

[0008] The machine body is equipped with a molding component for molding polylactic acid fiber tow filter rods;

[0009] The dust collection assembly includes a fixed box, which is fixedly installed on the top of the top frame. An air pump is fixedly installed inside the fixed box. A connecting pipe is fixedly installed at the air intake of the air pump. The bottom end of the connecting pipe passes through the top frame and is fixedly installed on the fixed frame. Several evenly distributed air outlets are fixedly opened at the bottom of the fixed frame.

[0010] Preferably, a collection box is fixedly provided on the rear side of the top frame, an activated carbon plate is fixedly provided inside the collection box, an L-shaped connection is fixedly provided at the air outlet of the air pump, the rear end of the L-shaped connection passes through the top of the collection box and the activated carbon plate and extends to the bottom of the collection box, and an exhaust pipe is fixedly provided on the top of the collection box to facilitate the discharge of gas inside the collection box.

[0011] Preferably, the molding component includes a first rotating rod connected to the front and rear walls of one end of the machine body via a bearing, and two second rotating rods connected between the top centers of the front and rear walls of the machine body via a bearing, with the rear ends of the second rotating rods penetrating the rear side of the machine body to facilitate rotation around the top of the second rotating rods.

[0012] Preferably, the front and rear walls of the other end of the machine body are connected to threaded cylinders by bearings. Threaded blocks are connected to the inside of the threaded cylinders by threads. A second insert rod and a first insert rod are fixed to opposite ends of the two threaded blocks, and a rotating cylinder passes through the first insert rod and the second insert rod to facilitate the polylactic acid fiber tow filter rod forming process.

[0013] Preferably, a connecting rod is connected to the rear side wall of the other end of the machine body via a bearing. The rear end of the connecting rod passes through the machine body and is fixedly connected to the rear end of the second insert rod. The connecting rod is connected to the rear ends of the two adjacent second rotating rods in a transmission connection. A motor is fixedly installed on the rear side of the machine body, and the output shaft of the motor is fixedly connected to the rear end of the middle second rotating rod, so as to facilitate the motor to drive the two second rotating rods and the connecting rod to rotate.

[0014] Preferably, a control panel for controlling the operation of the air pump and motor is fixedly provided on the front side of the machine body, and support columns are fixedly provided at the four corners of the bottom of the machine body. The other end of the machine body is connected to a door by a hinge, which facilitates the removal of the formed polylactic acid fiber tow filter rod.

[0015] Compared with the prior art, the present invention provides a polylactic acid fiber tow filter rod forming device, which has the following beneficial effects:

[0016] In this invention, the air pump absorbs the flying debris adhering to the polylactic acid fiber bundles through several air outlets on the fixed frame, and then transports it to the L-shaped connector through the connecting pipe. After passing through the L-shaped connector, it is transported to the bottom of the collection box, where it is adsorbed by the activated carbon plate. The flying debris is then collected at the bottom of the collection box, thus preventing it from affecting the quality of the polylactic acid fiber bundle filter rod and ensuring the quality of the polylactic acid fiber bundle filter rod. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a rear view of the overall structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the dust collection component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the molding component structure of this utility model.

[0022] In the diagram: 1. Main body, 2. Top frame, 3. Dust collection assembly, 4. Molding assembly, 5. Control panel, 6. Support column, 7. Door;

[0023] 31 Fixed box, 32 Air pump, 33 Connecting pipe, 34 Fixed frame, 35 Air outlet, 36 L-shaped connecting pipe, 37 Collection box, 38 Activated carbon plate, 39 Exhaust pipe, 41 First rotating rod, 42 Second rotating rod, 43 Threaded cylinder, 44 Threaded block, 45 First insert rod, 46 Second insert rod, 47 Connecting rod, 48 Rotary cylinder, 49 Motor. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-5 As shown, this utility model provides a polylactic acid fiber tow filter rod forming device, including a body 1 and a top frame 2 fixedly installed on the top of the body 1. Support columns 6 are fixedly installed at the four corners of the bottom of the body 1. The other end of the body 1 is hinged to a door 7 for easy removal of the formed polylactic acid fiber tow filter rod.

[0026] like Figure 1-3 As shown in Figure 5, the machine body 1 is provided with a molding component 4 for molding polylactic acid fiber tow filter rods. The molding component 4 includes a first rotating rod 41 connected to the front and rear walls of one end of the machine body 1 by bearings. Two second rotating rods 42 are connected between the top centers of the front and rear walls of the machine body 1 by bearings, and the rear ends of the second rotating rods 42 penetrate the rear side of the machine body 1 to facilitate rotation around the top of the second rotating rods 42. The front and rear walls of the other end of the machine body 1 are connected to threaded cylinders 43 by bearings. Threaded blocks 44 are threadedly connected inside the threaded cylinders 43.

[0027] Two threaded blocks 44 are respectively fixed with a second insert rod 46 and a first insert rod 45 at opposite ends. A rotating cylinder 48 passes through the first insert rod 45 and the second insert rod 46 to facilitate the polylactic acid fiber tow filter rod forming process. A connecting rod 47 is connected to the rear side wall of the other end of the machine body 1 via a bearing. The rear end of the connecting rod 47 passes through the machine body 1 and is fixedly connected to the rear end of the second insert rod 46. The connecting rod 47 is connected to the rear ends of the two adjacent second rotating rods 42 for transmission. The transmission structure can be selected as needed to achieve stable transmission between the connecting rod 47 and the two second rotating rods 42. A motor 49 is fixedly installed on the rear side of the machine body 1, and the output shaft of the motor 49 is fixedly connected to the rear end of the middle second rotating rod 42 to facilitate the motor 49 driving the two second rotating rods 42 and the connecting rod 47 to rotate. A control panel 5 for controlling the operation of the motor 49 is fixedly installed on the front side of the machine body 1.

[0028] like Figure 1-4 As shown, the top frame 2 is equipped with a dust collection component 3 for absorbing dust adhering to the surface of polylactic acid fiber bundles. The dust collection component 3 includes a fixed box 31, which is fixedly installed on the top of the top frame 2. An air pump 32 is fixedly installed inside the fixed box 31. A connecting pipe 33 is fixedly installed at the air intake of the air pump 32. The bottom end of the connecting pipe 33 passes through the top frame 2 and is fixedly installed with a fixed frame 34. Several evenly distributed air outlets 35 are fixedly opened at the bottom of the fixed frame 34. A collection box 37 is fixedly installed on the rear side of the top frame 2. An activated carbon plate 38 is fixedly installed inside the collection box 37. An L-shaped connector 36 is fixedly installed at the air outlet of the air pump 32. The rear end of the L-shaped connector 36 passes through the top of the collection box 37 and the activated carbon plate 38 and extends to the bottom of the collection box 37. An exhaust pipe 39 is fixedly installed on the top of the collection box 37 to facilitate the discharge of gas inside the collection box 37. The air pump 32 is controlled by the control panel 5.

[0029] By setting the forming component 4, polylactic acid fiber bundles are wound around the first rotating rod 41. Then, one end of the bundle is pulled through the top of the two second rotating rods 42 and fixed on the rotating drum 48. The control panel 5 is then operated to control the motor 49 to work. The motor 49 drives the two second rotating rods 42 to rotate relative to each other and drives the connecting rod 47 to rotate. The rotation of the connecting rod 47 drives the second insert rod 46 and the first insert rod 45 to rotate, thereby driving the rotating drum 48 to rotate, thus completing the polylactic acid fiber bundle forming process. After completion, the second insert rod 46 and the first insert rod 45 can be disassembled and the rotating drum 48 can be removed by unscrewing the two threaded blocks 44.

[0030] By setting up the dust collection component 3, during the polylactic acid fiber bundle forming process, the operation control panel 5 controls the air pump 32 inside the fixed box 31 to work. The air pump 32 absorbs the flying debris stuck on the polylactic acid fiber bundle through several air outlets 35 on the fixed frame 34, and transports it to the L-shaped connection 36 through the connecting pipe 33, and then transports it to the bottom of the collection box 37 through the L-shaped connection 36.

[0031] Meanwhile, after being adsorbed by the activated carbon plate 38, the gas at the top of the collection box 37 can be discharged to the outside through the exhaust pipe 39, while the flying debris is collected at the bottom of the collection box 37, thereby avoiding the flying debris from affecting the quality of the polylactic acid fiber tow filter rod molding and ensuring the quality of the polylactic acid fiber tow filter rod.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A polylactic acid fiber tow filter rod forming device, comprising a machine body (1) and a top frame (2) fixedly arranged on the top of the machine body (1), characterized in that: a dust suction assembly (3) is arranged on the top of the top frame (2) for absorbing flying debris adhered to the surface of the polylactic acid fiber tow; a forming assembly (4) is arranged in the machine body (1) for forming the polylactic acid fiber tow filter rod; the dust suction assembly (3) comprises a fixed box (31) fixedly arranged on the top of the top frame (2), an air suction pump (32) fixedly arranged in the fixed box (31), a connecting pipe (33) fixedly arranged on the air suction port of the air suction pump (32), and a fixed frame (34) fixedly arranged at the bottom end of the connecting pipe (33) and penetrating through the top frame (2), wherein a plurality of air outlets (35) are fixedly arranged on the bottom of the fixed frame (34).

2. A polylactic acid fiber tow plug forming device according to claim 1, characterized by: an L-shaped connector (36) is fixedly arranged on the air outlet of the air suction pump (32), the rear end of the L-shaped connector (36) penetrates through the top of the collecting box (37) and the activated carbon plate (38) and extends to the bottom end of the collecting box (37), and an exhaust pipe (39) is fixedly arranged on the top of the collecting box (37).

3. A polylactic acid fiber tow plug forming device according to claim 2, characterized by: the forming assembly (4) comprises a first rotating rod (41) connected between the front and rear walls of one end of the machine body (1) through bearings, two second rotating rods (42) connected between the top centers of the front and rear walls of the machine body (1) through bearings, and the rear ends of the second rotating rods (42) penetrating through the rear side of the machine body (1).

4. A polylactic acid fiber tow plug forming device according to claim 3, wherein: threaded cylinders (43) are connected to the front and rear walls of the other end of the machine body (1) through bearings, threaded blocks (44) are connected to the interiors of the threaded cylinders (43) through threads, second inserting rods (46) and first inserting rods (45) are fixedly arranged on the opposite ends of the two threaded blocks (44), respectively, and rotating cylinders (48) are arranged on the first inserting rods (45) and the second inserting rods (46).

5. A polylactic acid fiber tow plug forming device according to claim 4, wherein: a connecting rod (47) is connected to the rear side wall of the other end of the machine body (1) through a bearing, the rear end of the connecting rod (47) penetrates through the machine body (1) and is fixedly connected to the rear end of the second inserting rod (46), the connecting rod (47) is drivingly connected between the rear ends of the two second rotating rods (42) adjacent to each other, and a motor (49) is fixedly arranged on the rear side of the machine body (1) and the output shaft of the motor (49) is fixedly connected to the rear end of the middle second rotating rod (42).

6. A polylactic acid fiber tow plug forming device according to claim 5, wherein: a control panel (5) for controlling the air suction pump (32) and the motor (49) to work is fixedly arranged on the front side of the machine body (1), support columns (6) are fixedly arranged on the four corners of the bottom of the machine body (1), and a machine door (7) is hingedly connected to the other end of the machine body (1).

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