Anti-explosion chopping machine

Abstract

The utility model discloses an anti-explosion chopping machine which comprises a machine frame, a machine box, a rubber roller device, a cutter roller, a pneumatic motor, a product collecting hopper and an air amplifier. The lower end of the product collecting funnel is connected with an air amplifier through a bent pipe; the case comprises a case body and a case cover; the cutter roller is embedded in the box body, and the rubber roller device is arranged in an inner cavity of the box body in a sliding mode. The rubber roller device comprises a rubber roller and a rubber roller adjusting mechanism; a wire inlet is formed in the right side of the box cover; and a yarn guide device capable of doing reciprocating motion is arranged on the yarn inlet. The pneumatic motor is adopted to drive the cutter roller and the pneumatic air amplifier to convey finished products, the body is not provided with an electrical device, the chopping machine is a closed case except for a feeding port, chopped products enter a conveying pipeline along with airflow, and a negative pressure environment is formed in the case of the chopping machine. Flammable and explosive carbon fiber broken yarns with conductivity and dust are prevented from leaking to float in the air and invading electric appliances to cause safety accidents such as short circuit faults or dust explosion and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon fiber processing equipment, in particular to an explosion-proof short-cutting machine. Background Art

[0002] The fiber chopper is a type of chopping processing equipment currently used in the fiber chopping production line, which is used to cut continuous fiber bundles into short yarns that meet the required length specifications. The fiber bundles are brought between the rotating rubber roller and the rubber roller, and the blades cut the fiber bundles. Under the pressure of the blades, the fibers bend and deform along with the surface of the rubber roller. The fiber cutting process is completed under the dual effects of blade cutting and fiber bending and deformation. When the main drive of the chopper drives the cutter roller to rotate, the blades on the cutter roller surface contact the relatively pressed rubber roller in turn, cut into the rubber layer of the rubber roller, and as the cutter roller rotates, the blades then disengage from the rubber roller in turn, thereby driving the rubber roller to rotate, completing continuous chopping.

[0003] Dry carbon fiber is flammable and conductive. In the short-cut processing of carbon fiber tows, especially when processing dry short-cut carbon fiber with a wire diameter of 5 microns and a length of 1 mm, the broken yarn and dust produced are flammable and explosive. Conductive carbon fiber intrusion into electrical appliances will cause electrical short circuit failures, and flammable dust floating in the air can easily cause dust explosion safety accidents. Generally, short-cut machines for processing glass fiber or basalt fiber do not have explosion-proof safety characteristics, and using them to cut carbon fiber is quite dangerous. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide an explosion-proof short-cutting machine, which adopts a pneumatic motor to drive the cutting roller and a pneumatic air amplifier to convey the finished products. The rubber roller clamping hydraulic cylinder adopts a flame-retardant hydraulic fluid as the medium. The main body has no electrical devices. The short-cutting machine is a closed chassis except for the feed port. The short-cut products enter the conveying pipeline with the airflow. The short-cutting machine chassis is a negative pressure environment to prevent the flammable, explosive and conductive carbon fiber yarn and dust from leaking out and floating in the air, invading electrical appliances to cause short circuit failures or dust explosions and other safety accidents; by embedding the cutting knife stick in the box body, it is convenient to quickly replace the cutting knife roller.

[0005] The utility model is realized by the following technical solutions:

[0006] An explosion-proof short-cutting machine comprises a frame, a chassis, a rubber roller device, a cutting roller, an air motor, a product collecting funnel and an air amplifier;

[0007] The pneumatic motor is arranged on one side of the top of the frame, and the chassis is arranged on the other side; the product collecting funnel is arranged at the lower end of the frame corresponding to the chassis, and the lower end of the product collecting funnel is connected to the air amplifier through a curved pipe;

[0008] The chassis comprises a box body connected to the frame and a box cover which is openable and closable and is arranged on the upper end of the box body;

[0009] The two ends of the cutting roller are embedded in the box body through bearing seats, and the rubber roller device can be slidably arranged in the inner cavity of the box body; a transmission mechanism is arranged between the cutting roller and the output shaft of the pneumatic motor; the rubber roller device includes a rubber roller and a rubber roller adjustment mechanism arranged in the box body;

[0010] A rhombus groove for accommodating the bearing seat is provided on the box body at a position corresponding to the bearing seat, the opening of the rhombus groove is inclined away from the pneumatic motor end, the bearing seat is rhombus-shaped, and grooves are provided on both sides for sliding cooperation with the rhombus groove;

[0011] A yarn inlet is arranged on the right side of the box cover; a yarn guide device capable of reciprocating movement is arranged on the yarn inlet.

[0012] Furthermore, the yarn guiding device includes a pneumatic slide arranged at the top right side of the box body, a connecting frame arranged at the top of the pneumatic slide, and a yarn guiding comb plate arranged on the connecting frame.

[0013] Furthermore, a diamond-shaped groove is provided on the box body corresponding to the bearing seat to facilitate accommodating the bearing seat, and the opening of the diamond-shaped groove is inclined away from the pneumatic motor end. The bearing seat has a diamond-shaped shape and grooves are provided on both sides to facilitate sliding cooperation with the diamond-shaped groove.

[0014] Further, the rubber roller adjustment mechanism includes a hydraulic cylinder disposed on both sides of the box body and a head disposed on the piston rod of the hydraulic cylinder for pushing the rubber roller;

[0015] The rear end of the cylinder body of the hydraulic cylinder is connected to the box body through a fixing nut, and the front end is connected to the inner wall of the box body through an L-shaped support seat;

[0016] The rubber roller comprises a rubber roller shaft and a rubber roller sleeve arranged on the rubber roller shaft, and inner walls on both sides of the box body are provided with L-shaped rubber roller sliding grooves for facilitating the sliding of the rubber roller.

[0017] Furthermore, the transmission mechanism includes a main pulley arranged on the output shaft of the pneumatic motor, a secondary pulley arranged on the roller shaft of the cutting roller, and a belt arranged between the main pulley and the secondary pulley.

[0018] Furthermore, the frame is provided with a connecting plate for fixing the pneumatic motor, and two adjusting mechanisms for adjusting the pneumatic motor are symmetrically provided on both sides of the connecting plate;

[0019] The adjusting mechanism comprises an adjusting seat fixed on the connecting plate, an adjusting bolt arranged on the adjusting seat and an adjusting nut arranged on the adjusting bolt.

[0020] Furthermore, one end of the box cover is connected to the box body through a second hinge, and the front and rear sides of the other end are connected to the box body through a lock.

[0021] The beneficial effects of the utility model are:

[0022] The finished products are transported by using a pneumatic motor to drive the cutting roller and a pneumatic air amplifier. The rubber roller pressing hydraulic cylinder uses flame-retardant hydraulic fluid as the medium. The main body has no electrical devices. The short-cut machine is a closed chassis except for the feed port. The short-cut products enter the conveying pipeline with the airflow. The short-cut machine chassis is a negative pressure environment to prevent the flammable, explosive and conductive carbon fiber yarn and dust from leaking out and floating in the air, invading electrical appliances to cause short circuit failures or dust explosions and other safety accidents; by embedding the cutting knife stick in the box body, it is convenient to quickly replace the cutting knife roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the front view of the utility model:

[0024] Figure 2 This is a layout diagram inside the chassis of the utility model. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the above description of the utility model, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0030] like Figure 1 to Figure 2 As shown, an explosion-proof short-cutting machine includes a frame 1, a chassis 2, a rubber roller device 3, a cutter roller 4, an air motor 5, a product collecting funnel 6 and an air amplifier 7;

[0031] A pneumatic motor 5 is provided on one side of the top of the frame 1, and a chassis 2 is provided on the other side; a product collecting funnel 6 is provided at the lower end of the frame 1 corresponding to the chassis 2, and the lower end of the product collecting funnel 6 is connected to an air amplifier 7 through a curved pipe 61;

[0032] The chassis 2 includes a chassis body 21 connected to the frame 1 and a chassis cover 22 which is openable and closable and is arranged on the upper end of the chassis body 21;

[0033] The inner cavity of the box body 21 is provided with a cutting roller 4 and the rubber roller device 3; a transmission mechanism is provided between the cutting roller 4 and the output shaft of the pneumatic motor 5; the rubber roller device 3 includes a rubber roller 31 and a rubber roller adjustment mechanism provided in the box body;

[0034] The two ends of the cutting roller 4 are embedded in the box body 21 through the bearing seat 42, and the rubber roller device 3 can be slidably arranged in the inner cavity of the box body 21; a transmission mechanism is arranged between the cutting roller 4 and the output shaft of the pneumatic motor 5; the rubber roller device 3 includes a rubber roller 31 and a rubber roller adjustment mechanism arranged in the box body 21; by embedding the cutting roller in the box body, it is convenient to quickly slide out the cutting roller upward and replace the knife stick; at the same time, the cutting roller is also restricted in the box body by the box cover;

[0035] A diamond-shaped groove is provided on the box body 21 at a position corresponding to the bearing seat 42, which is convenient for accommodating the bearing seat 42. The opening of the diamond-shaped groove is inclined away from the end of the pneumatic motor 5. The bearing seat 42 is in a diamond shape, and grooves are provided on both sides to facilitate sliding cooperation with the diamond-shaped groove. By providing the diamond-shaped groove, the cutting roller will be pressed into the box body when the belt is tightened.

[0036] A yarn inlet is provided on the right side of the box cover 22; a yarn guide device 8 capable of reciprocating movement is provided on the yarn inlet;

[0037] The finished products are transported by using pneumatic motors to drive the cutting rollers and pneumatic air amplifiers. The rubber roller pressing hydraulic cylinder uses flame-retardant hydraulic fluid as the medium. The main body has no electrical devices. The short-cut machine is a closed chassis except for the feed port. The short-cut products enter the conveying pipeline with the airflow. The short-cut machine chassis is a negative pressure environment to prevent flammable, explosive and conductive carbon fiber yarn and dust from leaking out and floating in the air, invading electrical appliances to cause short circuit failures or cause dust explosions and other safety accidents.

[0038] In this embodiment, the yarn guide device 8 includes a pneumatic slide 81 arranged at the top right side of the box body 21, a connecting frame 82 arranged at the top of the pneumatic slide, and a yarn guide comb plate 83 arranged on the connecting frame; the yarn guide device uses a pneumatic slide as a motion mechanism, and the yarn guide comb plate installed on the pneumatic slide reciprocates within a certain range. When the tow enters the short cut, the lateral cutting position on the cutting roller and the rubber roller changes periodically, so that the blade on the cutting roller wears evenly, which can extend the service life of the rubber roller and the blade;

[0039] The connecting frame 82 includes a connecting vertical plate 821 connected to the pneumatic slide 81, an L-shaped connecting plate 823 connected to the connecting vertical plate 821 through a first hinge 822, an angle adjustment bolt 824 arranged on the L-shaped connecting plate 823, and a protective plate 825 arranged on the L-shaped connecting plate 823 to prevent the wire from contacting the L-shaped connecting plate and breaking the wire.

[0040] In this embodiment, the rubber roller adjustment mechanism includes a hydraulic cylinder 32 disposed on both sides of the box body 21 and a head 33 disposed on the piston rod of the hydraulic cylinder for pushing the rubber roller;

[0041] The rear end of the cylinder body of the hydraulic cylinder is connected to the box body through a fixing nut 34, and the front end is connected to the inner wall of the box body through an L-shaped support seat 35;

[0042] The rubber roller 31 includes a rubber roller shaft and a rubber roller sleeve arranged on the rubber roller shaft. The inner walls on both sides of the box body 21 are provided with L-shaped rubber roller sliding grooves for facilitating the sliding of the rubber roller, so as to facilitate the insertion of the rubber roller and the horizontal movement of the rubber roller to adjust the contact pressure between the cutting roller and the rubber roller.

[0043] In this embodiment, the transmission mechanism includes a main pulley 51 arranged on the output shaft of the pneumatic motor 5 , a secondary pulley 41 arranged on the roller shaft of the cutter roller 4 , and a belt arranged between the main pulley 51 and the secondary pulley 41 .

[0044] In this embodiment, a connecting plate 11 is provided on the frame 1 for fixing the pneumatic motor, and two adjusting mechanisms for adjusting the pneumatic motor 5 are symmetrically provided on both sides of the connecting plate 11, so as to adjust the position of the pneumatic motor to tighten the belt and assist in fixing the pneumatic motor;

[0045] The adjusting mechanism comprises an adjusting seat 12 fixed on the connecting plate 11 , an adjusting bolt 13 arranged on the adjusting seat 12 , and an adjusting nut 14 arranged on the adjusting bolt 13 .

[0046] In this embodiment, one end of the box cover 22 is connected to the box body 21 through a second hinge, and the front and rear sides of the other end are connected to the box body 21 through locks; it is convenient and quick to open the box cover and replace the cutting roller and the rubber roller;

[0047] A belt cover 15 is provided on the frame 1 corresponding to the transmission mechanism.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An explosion-proof short cutting machine, characterized in that: It includes a frame, a chassis, a rubber roller device, a cutting roller, an air motor, a product collecting funnel and an air amplifier; The pneumatic motor is arranged on one side of the top of the frame, and the chassis is arranged on the other side; the product collecting funnel is arranged at the lower end of the frame corresponding to the chassis, and the lower end of the product collecting funnel is connected to the air amplifier through a curved pipe; The chassis comprises a box body connected to the frame and a box cover which is openable and closable and is arranged on the upper end of the box body; The two ends of the cutting roller are embedded in the box body through bearing seats, and the rubber roller device can be slidably arranged in the inner cavity of the box body; a transmission mechanism is arranged between the cutting roller and the output shaft of the pneumatic motor; the rubber roller device includes a rubber roller and a rubber roller adjustment mechanism arranged in the box body; A yarn inlet is arranged on the right side of the box cover; a yarn guide device capable of reciprocating movement is arranged on the yarn inlet.

2. The explosion-proof short cutting machine according to claim 1, characterized in that: The yarn guiding device comprises a pneumatic slide arranged at the top right side of the box body, a connecting frame arranged at the top of the pneumatic slide, and a yarn guiding comb plate arranged on the connecting frame.

3. The explosion-proof short cutting machine according to claim 1, characterized in that: A diamond-shaped groove for accommodating the bearing seat is arranged on the box body corresponding to the bearing seat, and the opening of the diamond-shaped groove is inclined away from the pneumatic motor end. The bearing seat has a diamond-shaped shape, and grooves are arranged on both sides for sliding cooperation with the diamond-shaped groove.

4. The explosion-proof short cutting machine according to claim 1, characterized in that: The rubber roller adjustment mechanism comprises a hydraulic cylinder disposed on both sides of the box body and a head disposed on the piston rod of the hydraulic cylinder for pushing the rubber roller; The rear end of the cylinder body of the hydraulic cylinder is connected to the box body through a fixing nut, and the front end is connected to the inner wall of the box body through an L-shaped support seat; The rubber roller comprises a rubber roller shaft and a rubber roller sleeve arranged on the rubber roller shaft, and inner walls on both sides of the box body are provided with L-shaped rubber roller sliding grooves for facilitating the sliding of the rubber roller.

5. The explosion-proof short cutting machine according to claim 1, characterized in that: The transmission mechanism comprises a main pulley arranged on the output shaft of the pneumatic motor, a secondary pulley arranged on the roller shaft of the cutter roller, and a belt arranged between the main pulley and the secondary pulley.

6. The explosion-proof short cutting machine according to claim 1, characterized in that: The frame is provided with a connecting plate for fixing the pneumatic motor, and two adjusting mechanisms for adjusting the pneumatic motor are symmetrically arranged on both sides of the connecting plate; The adjusting mechanism comprises an adjusting seat fixed on the connecting plate, an adjusting bolt arranged on the adjusting seat and an adjusting nut arranged on the adjusting bolt.

7. The explosion-proof short cutting machine according to claim 1, characterized in that: One end of the box cover is connected to the box body through a second hinge, and the front and rear sides of the other end are connected to the box body through locks.

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