CN108505314B - Annular blanket cutting device - Google Patents

Abstract

The invention relates to the field of blanket cutting, in particular to an annular blanket cutting device, which is characterized in that: the device comprises a portal frame lifting mechanism, a movable tool rest and a tool rest connecting mechanism; the portal frame lifting mechanism is a portal frame structure consisting of two upright posts and a transmission shaft, and two ends of the transmission shaft are respectively connected with the upper ends of the corresponding upright posts through bearing seats; the movable tool rest is of a rectangular structure, and second pulleys are arranged at four corners of the movable tool rest; the side edge of the movable tool rest is provided with a slide bar, and three sliding blocks with locking functions are arranged on the slide bar; wherein, the slide block positioned in the middle is provided with a guide needle, and the rest two slide blocks are provided with cutters; the tool rest connecting mechanism comprises a triangular bracket; the upper end and the lower end of the triangular bracket are respectively provided with a first pulley; and the front end and the rear end of the triangular bracket are respectively provided with a C-shaped steel sliding rail. The side channels of the blanket cut by the device are neat and straight, and the starting point and the end point of cutting the two sides of the annular blanket can be connected in a seamless mode.

Description

Ring felt cutting device

technical field

The invention relates to the field of felt cutting, in particular to an annular felt cutting device.

Background technique

Ring felts mainly refer to papermaking felts and ring felts. Among them, the paper-making felt is also a ring fabric. An important physical index of the paper-making felt is that the sideways on both sides must be straight and smooth, so as not to affect the use effect. There are two factors that cause the sideways of paper-making felts to be uneven: one is that the sideways will be damaged and uneven due to mechanical reasons during the production of felts in each process; Different degrees of shrinkage, so there will be a certain margin in the width during design, so the finished width and straight sideways of the blanket are obtained by cutting during finishing and molding. Since the felt is ring-shaped, there will be a deviation phenomenon during the running process, and the starting point and the ending point cannot be correctly matched. So far, the cutting method is to manually mark the line first, and then use a knife to manually cut according to the shadow of the line. During the cutting, appropriate corrections should be made based on experience, so there will always be arcs of different degrees in the hand-cut side. The shape is bent, which is time-consuming and laborious, and the side road is not straight. This arc bending will eventually affect the stability of the paper machine equipment in the paper mill. Therefore, ensuring the straightness of the felt sideways is also an important factor to improve the quality of papermaking felts.

Contents of the invention

In view of the above technical problems, the object of the present invention is to provide a ring-shaped felt cutting device, which cuts the felt with neat and straight sides, and enables the starting point and the end point of cutting both sides of the ring-shaped felt to be seamlessly connected. And it solves the shortcomings of the current production process, which is entirely based on manual marking and then manual cutting with a knife, which is time-consuming and laborious, and the side road is not straight.

For realizing above-mentioned purpose, the technical scheme that the present invention takes is:

A ring-shaped blanket cutting device is characterized in that it includes a gantry lifting mechanism, a movable knife rest and a knife rest connecting mechanism;

The gantry lifting mechanism is a gantry structure consisting of two vertical rods and a transmission shaft, and the two ends of the transmission shaft are respectively connected to the upper ends of the corresponding vertical rods through bearing seats; the inner side of each vertical rod is provided with vertical chute, one of the poles is provided with a motor; both ends of the transmission shaft are provided with reels, and one end of the transmission shaft is also provided with a sprocket; the sprocket is located directly above the motor, and It is connected with the output shaft of the motor through a chain;

The movable knife rest is a rectangular structure, and its four corners are provided with second pulleys; a slide bar is provided on the side of the movable knife rest, and three sliders with locking functions are arranged on the slide bar; Guide needles are installed on the slide block of the first one, and knives are installed on the remaining two slide blocks; a joystick is also installed on the movable knife rest, and the joystick is installed on the movable knife rest through a bearing seat; one end of the joystick is set There is a hand wheel, and the other end is provided with an external thread;

The knife rest connection mechanism includes a triangular bracket; the upper and lower ends of the triangular bracket are respectively provided with a first pulley, and the two first pulleys are vertically arranged up and down; the front and rear ends of the triangular bracket are respectively provided with a C-shaped steel Slide rails, two C-shaped steel slide rails are located on the same level and are symmetrical to each other;

There are two connecting mechanisms for the tool rest, which are respectively symmetrically installed on two vertical poles, and the two first pulleys on the triangular bracket are all installed in the chute of the vertical pole; directly above the two knife rest connecting mechanisms, and connected with them by steel cables; the two ends of the movable knife rest are respectively connected with the corresponding knife rest connecting mechanisms, and the four second pulleys on the movable knife rest are respectively arranged In the corresponding C-shaped steel slide rail; a nut is provided on the triangular bracket of one of the knife rest connecting mechanisms, and the nut is matched and connected with the external thread end of the joystick.

Preferably, the movable knife rest is a rectangular welded structure, which includes two parallel and symmetrically arranged support rods, and the two support rods are fixedly connected by several steel plates, and the control rod is installed on one of the steel plates through a bearing seat; Both ends of each support rod are provided with second pulleys; the two ends of the slide rod are fixedly connected with one of the support rods through connecting pieces.

Preferably, the tripod is an inverted right-angled triangle structure, wherein a first pulley is installed at the upper and lower ends of the vertical right-angled side, and a C-shaped steel slide rail is installed at the front and rear ends of the horizontal right-angled side.

Preferably, the distance between the two vertical rods matches the width of the guide roller of the shaping machine, and the two vertical rods are respectively installed on the bases at both ends of the guide roller.

Preferably, the endless felt cutting device is suitable for mechanical cutting of papermaking felts and endless felts.

The invention has the beneficial effects that: the sideways of the blanket cut by the invention are neat and straight, and the starting point and the end point of cutting the two sides of the ring-shaped blanket can be seamlessly connected. And it solves the shortcomings of the current production process, which is entirely based on manual marking and then manual cutting with a knife, which is time-consuming and laborious, and the side road is not straight. The present invention changes manual cutting into mechanical cutting, which guarantees the improvement of the quality of the paper-making felt sideways, and provides mechanical conditions for the cutting of general annular felts.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure (stereo) of the present invention.

Fig. 2 is a (three-dimensional) schematic diagram of the movable knife holder in the present invention.

Fig. 3 is a (stereoscopic) schematic diagram of the tool holder connection mechanism on the left in the present invention.

Fig. 4 is a (stereoscopic) schematic diagram of the tool holder connection mechanism on the right (with nut) in the present invention.

In the figure: 1, vertical rod; 2, transmission shaft; 3, reel; 4, sprocket wheel; 5, motor; 6, triangle bracket; 7, C-shaped steel slide rail; 8, first pulley; 9, movable knife rest ; 10, support rod; 11, the second pulley; 12, joystick; 13, handwheel;

Detailed ways

In order to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the embodiments and accompanying drawings (as shown in Figures 1-4).

Annular blanket cutting device, which includes a gantry lifting mechanism, a movable knife rest 9 and a knife rest connecting mechanism (wherein the knife rest connecting mechanism is used to connect the gantry lifting mechanism and the movable knife rest 9, and the gantry lifting mechanism is used to drive Movable knife rest 9 moves up and down);

As shown in Figure 1, the gantry lifting mechanism is a gantry structure consisting of two vertical poles 1 and a transmission shaft 2, and the two ends of the transmission shaft 2 are respectively connected to the upper ends of the corresponding vertical poles 1 through bearing seats. ; The inner side of each vertical rod 1 is provided with a vertical chute, and one of the vertical rods 1 is provided with a motor 5; both ends of the transmission shaft 2 are provided with a reel 3, and one of the ends of the transmission shaft 2 is also A sprocket 4 is provided; the sprocket 4 is positioned directly above the motor 5, and is connected with the output shaft of the motor 5 by a chain (the output shaft is also provided with a supporting sprocket, as the preferred motor 5 should be positioned at the top of the vertical bar 1 outside);

As shown in Figures 1 and 2, the movable knife rest 9 is a rectangular structure, and its four corners are provided with second pulleys 11; the side of the movable knife rest 9 is provided with a slide bar 14, and There are three sliders 15 with locking function (the sliders 15 can slide on the slide bar 14 or can be locked and fixed); the slider 15 in the middle is equipped with a guide needle, and the remaining two sliders 15 Cutter 16 is installed on it; Joystick 12 is also installed on the movable knife rest 9, and joystick 12 is installed on the movable knife rest 9 through bearing seat; One end of described joystick 12 is provided with handwheel 13, and the other end is provided with with external thread;

As shown in Figures 3 and 4, the knife rest connection mechanism includes a triangular bracket 6; the upper and lower ends of the triangular bracket 6 are respectively provided with a first pulley 8, and two first pulleys 8 are arranged vertically up and down (i.e. on a vertical line); the front and rear ends of the tripod 6 are respectively provided with a C-shaped steel slide rail 7, and the two C-shaped steel slide rails 7 are located on the same horizontal plane and are symmetrical to each other;

As shown in Figure 1, there are two knife rest connecting mechanisms, which are symmetrically installed on two vertical poles 1 respectively, and the two first pulleys 8 on the tripod 6 are installed in the chute of the vertical pole 1; The reels 3 at the two ends of the transmission shaft 2 are respectively located directly above the two knife rest connecting mechanisms, and (the reels 3) are connected with it (the corresponding triangle bracket 6) by steel cables; The ends are respectively connected with the corresponding knife rest connecting mechanism, and the four second pulleys 11 on the movable knife rest 9 are respectively placed in the corresponding C-shaped steel slide rails 7; A nut 18 (as shown in FIG. 4 ), the nut 18 is mated with the external threaded end of the joystick 12 .

As shown in Figure 2, the movable knife rest 9 is a rectangular welded structure, which includes two parallel and symmetrically arranged support rods 10, and the two support rods 10 are fixedly connected by several steel plates, and the control rod 12 passes through the bearing seat Installed on one of the steel plates; both ends of each support rod 10 are provided with a second pulley 11; both ends of the slide rod 14 are fixedly connected to one of the support rods 10 through a connecting piece.

As shown in Figures 3 and 4, the tripod bracket 6 is an inverted right-angled triangle structure, wherein a first pulley 8 is respectively installed at the upper and lower ends of the vertical right-angled side, and a first pulley 8 is respectively installed at the front and rear ends of the horizontal right-angled side. C-shaped steel slide rail 7 (the openings of two C-shaped steel slide rails 7 are all inward).

The spacing between two vertical rods 1 matches the width of the guide roller of the shaping machine, and the two vertical rods 1 are installed on the bases at the two ends of the guide roller respectively (the movable knife rest 9 is lifted and lowered on the gantry lifting mechanism).

The endless felt cutting device is suitable for mechanical cutting of papermaking felt and endless felt.

The usage method of the annular blanket cutting device: in the non-working state, the movable knife rest 9 is placed above the lifting mechanism of the gantry frame and locked by the cross pin. When working: 1. Pull out the horizontal pin. 2. Start the motor 5 to lower the movable knife holder 9. 3. Fix the knife 16 according to the width requirement, and the knife edge faces the direction of the felt blanket at an angle of 45-90 degrees and falls. 4. The guide is aimed at the center line of the positive felt and fixed. 5. Start the drying cylinder or the active roller to rotate the felt, and the cutter starts to work. 6. The operator can ensure that the guide needle is always facing the center line of the felt blanket by fine-tuning the handwheel 13. 7. After the cutting is completed, the cutter 16 is reset, and the motor 5 is started to make the movable knife rest 9 rise to the top of the gantry lifting mechanism and insert a horizontal pin to lock it.

The above descriptions are only application examples of the present invention, and of course the scope of rights of the present invention cannot be limited by this. Therefore, equivalent changes made according to the patent scope of the present invention still belong to the protection scope of the present invention.

Claims (3)

1. A ring-shaped blanket cutting device, characterized in that: it includes a gantry lifting mechanism, a movable knife rest (9) and a knife rest connecting mechanism; The gantry lifting mechanism is a gantry structure composed of two vertical poles (1) and a transmission shaft (2). seat connection; the inside of each pole (1) is provided with a vertical chute, and one of the poles (1) is provided with a motor (5); both ends of the transmission shaft (2) are provided with a coil One end of the drive shaft (2) is equipped with a sprocket (4); the sprocket (4) is located directly above the motor (5), and is connected to the output shaft of the motor (5) through a chain ; The movable knife rest (9) is a rectangular structure, and its four corners are provided with second pulleys (11); the side of the movable knife rest (9) is provided with a slide bar (14), and the slide bar (14) There are three sliders (15) with locking function on the top; guide needles are installed on the slider (15) in the middle, and knives (16) are installed on the remaining two sliders (15); the movable knives A joystick (12) is also installed on the frame (9), and the joystick (12) is installed on the movable knife rest (9) through the bearing seat; one end of the joystick (12) is provided with a handwheel (13), and the other one end is provided with an external thread; The knife holder connection mechanism includes a triangular bracket (6); the upper and lower ends of the triangular bracket (6) are respectively provided with a first pulley (8), and the two first pulleys (8) are arranged vertically up and down; the A C-shaped steel slide rail (7) is provided at the front and rear ends of the triangular bracket (6), and the two C-shaped steel slide rails (7) are located on the same horizontal plane and are symmetrical to each other; There are two tool holder connecting mechanisms, which are symmetrically installed on two vertical poles (1) respectively, and the two first pulleys (8) on the tripod bracket (6) are installed on the chute of the vertical pole (1) inside; the roll wheels (3) at both ends of the transmission shaft (2) are respectively located directly above the connecting mechanisms of the two tool holders, and are connected to them by steel cables; the two ends of the movable tool holder (9) are respectively connected to the corresponding The tool holder connecting mechanism is connected, and the four second pulleys (11) on the movable tool holder (9) are respectively placed in the corresponding C-shaped steel slide rails (7); the tripod bracket (6) of one of the tool holder connecting mechanisms ) is provided with a nut (18), and the nut (18) is matched with the external threaded end of the joystick (12); The movable knife holder (9) is a rectangular welded structure, which includes two parallel and symmetrically arranged support rods (10), the two support rods (10) are fixedly connected by several steel plates, and the operating rod (12) passes through The bearing seat is installed on one of the steel plates; the two ends of each support rod (10) are provided with a second pulley (11); the two ends of the slide rod (14) are connected with one of the support rods (10) ) fixed connection; The tripod bracket (6) is an inverted right-angled triangle structure, wherein a first pulley (8) is installed at the upper and lower ends of the vertical right-angled side, and a C-shaped steel slide rail is installed at the front and rear ends of the horizontal right-angled side (7). 2. The annular felt cutting device according to claim 1, characterized in that the distance between the two vertical rods (1) matches the width of the guide rollers of the setting machine, and the two vertical rods (1) are respectively installed on the guide rollers on both ends of the base. 3. The endless felt cutting device according to claim 1, characterized in that the endless felt cutting device is suitable for mechanical cutting of paper-making felts and endless felts.