CN209740332U - Discharging device for napkin production - Google Patents

Abstract

The utility model discloses a discharging device is used in napkin production, which comprises a frame, two pinch rolls and slewing mechanism, the outward flange of two pinch rolls is supported each other and is installed in the frame, two pinch rolls are connected and are used for driving the slewing mechanism of pinch roll rotation, two pinch rolls's structure is the same, all be equipped with slotting tool subassembly and press from both sides paper knife tackle spare on every pinch roll, slotting tool subassembly and press from both sides paper knife tackle spare fixed mounting respectively in pinch roll, slotting tool subassembly includes the slotting tool, slotting tool fixed mounting is in pinch roll, press from both sides paper knife tackle spare and include press from both sides paper knife and press from both sides paper knife drive mechanism, drive when two pinch rolls rotate and press from both sides paper knife drive mechanism and press from both sides paper knife swing and press from both sides. The utility model has the advantages that the slotting tool is fixedly arranged on the pinch roll, the traditional mode that the slotting tool swings and is arranged on the pinch roll is replaced, the structure of the slotting tool assembly is greatly simplified, and the structure is simple; meanwhile, the slotting tool is fixed, so that the friction noise between the slotting tool and the paper clamping tool is smaller, the service life is longer, and the slotting tool is suitable for high-speed rotation.

Description

Discharging device for napkin production

Technical Field

The utility model relates to a napkin folder field, in particular to discharging device is used in napkin production.

Background

The discharging device for napkin production of the existing napkin folding machine generally adopts two pinch rollers which are abutted against each other to rotate to convey napkin, and when the napkin is discharged from between the two pinch rollers, the napkin is alternately pushed out by the shifting forks on the respective pinch rollers to fold the napkin.

The paper is carried the work of pinch roll to the work of pinch roll through inserting the paper sword on the pinch roll, as shown in the chinese utility model patent of patent No. 201320206989.2, it discloses the paper structure of pressing from both sides of napkin folder, and it is also a discharging device in fact. The paper clamping structure consists of two folding rollers with the same structure, most of the existing discharging devices have the same structure as the discharging devices, the paper inserting knife and the paper clamping knife are arranged on the outer wall of the pinch roller in a swinging mode, when paper enters between the two pinch rollers, the paper inserting knife on one pinch roller inserts the paper and conveys the paper to the paper clamping knife of the other pinch roller, and the other paper clamping knife outputs the paper after clamping the paper. The paper inserting knife of the discharging device is complex in structure and quite inconvenient to replace and maintain, and meanwhile, the paper inserting knife and the paper clamping knife are driven in a swinging mode, so that when the two pinch rolls rotate, the paper inserting knife and the paper clamping knife are easy to collide to generate large noise, and the paper inserting knife cannot be applied to high-speed rotation generally.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a discharging device is used in napkin production can solve one of above-mentioned problem at least.

According to one aspect of the utility model, the discharging device for producing napkin paper is provided, which comprises a frame, two pinch rolls and a rotating mechanism, the outer edges of the two pinch rolls are mutually abutted and mounted on the frame, the two pinch rolls are connected with the rotating mechanism for driving the pinch rolls to rotate, the two pinch rolls have the same structure, each pinch roll is provided with an inserted knife component and a paper clamping knife component, the inserted knife component and the paper clamping knife component are respectively and fixedly mounted on the pinch rolls, the inserted knife component comprises an inserted knife, the inserted knife is fixedly mounted on the outer walls of the pinch rolls, the paper clamping knife component comprises a paper clamping knife and a paper clamping knife transmission mechanism, the paper clamping knife transmission mechanism is matched with the rotating mechanism, the paper clamping knife transmission mechanism is driven to drive the paper clamping knife to swing to clamp the paper when the two pinch rolls rotate, the slotting tool assembly of one pinch roll is matched with the paper clamping knife assembly of the other pinch roll and used for conveying the napkin to the paper clamping knife of the paper clamping knife assembly.

Therefore, the slotting tool is fixedly arranged on the pinch roll, the traditional mode that the slotting tool is arranged on the pinch roll in a swinging mode is replaced, the structure of the slotting tool assembly is greatly simplified, and the structure is simple; meanwhile, the slotting tool is fixed, so that the friction noise between the slotting tool and the paper clamping tool is smaller, the service life is longer, and the slotting tool is suitable for high-speed rotation.

In some embodiments, the slotting tool assembly further comprises a slotting tool pressing plate and a fastener, a first mounting groove and a second mounting groove are formed in the pinch roll, the second mounting groove is communicated with the first mounting groove, the slotting tool pressing plate and the slotting tool are both mounted in the first mounting groove, and one end of the fastener penetrates through the second mounting groove and is pressed on the slotting tool pressing plate. Therefore, the arrangement of the slotting tool pressing plate can ensure the fastening effect of the fastening piece, and meanwhile, the fastening piece can not be in direct contact with the slotting tool, so that the service life of the slotting tool is prolonged; the slotting tool can be conveniently and quickly detached from the pinch roll by unscrewing a little of the fastener, is convenient to disassemble and assemble and use, and is beneficial to the work of replacement, maintenance and the like.

In some embodiments, the slotting tool is a plastic slotting tool. Therefore, the plastic slotting tool can not scratch the napkin paper, and can ensure that the napkin paper is smoothly conveyed to the paper clamping knife.

In some embodiments, the discharging device for producing napkin paper further comprises a shifting fork and a swinging mechanism, the swinging mechanism is mounted on the frame, the swinging mechanism is in contact with the rotating mechanism, the swinging mechanism is used for driving the shifting fork to swing, the shifting fork is mounted on the swinging mechanism along the outer edges of the two pinch rollers respectively, and the tail end of the shifting fork is located in the pulling fork groove of the two pinch rollers. Therefore, when the swing mechanism swings, the shifting fork swings back and forth to push napkin paper out of the outer edge of the pinch roller, the length of the shifting fork is along the outer edge of the pinch roller, and when the napkin paper is fed between the two pinch rollers, the napkin paper can be guaranteed to be discharged from the outer edge of the pinch roller all the time, so that the problem of paper jam caused by the fact that the napkin paper is clamped into the gap between the shifting fork and the pinch roller is avoided.

In some embodiments, the frame includes two support plates and two side plates, the two support plates are mounted in parallel by two side plates perpendicular to the support plates, the rotating mechanism includes a motor, two main shafts, a first bearing and a first bearing seat, the two main shafts are respectively sleeved with a pinch roller, the first bearing and the first bearing seat are mounted at two ends of each main shaft, the first bearing seats are respectively fixed on the two support plates, and the motor is dynamically connected with one end of the two main shafts. Therefore, the motor drives the main shaft to rotate, and the main shaft drives the pinch rollers to rotate, so that the abutting positions of the two pinch rollers are enabled to clamp napkin and discharge the napkin.

In some embodiments, the swing mechanism includes a shift fork shaft, a second bearing seat, a connecting rod and a second bearing, the second bearing is eccentrically installed at the other end of the two main shafts and abuts against the connecting rod, the connecting rod is connected with one end of the shift fork shaft, two ends of the shift fork shaft are respectively fixed on the two supporting plates through the second bearing seat, the shift fork shaft is located between the two supporting plates, at least two shift forks are installed on the shift fork shaft, and the shift forks are arranged in parallel. From this, the rotation of main shaft drives the second bearing rotatory, and the eccentric mounting of second bearing makes can promote the connecting rod swing, thereby the connecting rod drives the declutch shift shaft and rotates and drive each shift fork swing, and the napkin paper can evenly be released to the parallel shift fork.

In some embodiments, the paper clamping knife transmission mechanism includes a cam rocker, a spring block, and a third bearing, the main shaft is further sleeved with a cam, the cam is installed above the first bearing seat and located at the bottom of the pinch roller, the cam rocker is sleeved at the upper end and the lower end of the paper clamping knife, the third bearing is fixedly installed at one end of the cam rocker at the lower end of the paper clamping knife, the outer wall of the third bearing contacts with the outer wall of the cam, one end of the spring abuts against the spring block installed on the pinch roller, and the other end of the spring abuts against the other end of the cam rocker. Therefore, after the napkin enters the pinch rollers, the slotting tool of the pinch roller on the left inserts the napkin into the middle of the paper clamping tool of the pinch roller on the right, the third bearing slides down the cam due to the force applied to the cam rocker by the spring on the pinch roller on the right, meanwhile, the paper clamping tool is closed to clamp the napkin, the slotting tool is drawn out along with the synchronous rotation of the two pinch rollers, when the third bearing contacts the cam again, the cam rocker compresses the spring, the paper clamping tool is opened, and the napkin is separated from the pinch rollers.

the utility model has the advantages that:

The utility model has simple structure, replaces the traditional mode that the slotting tool swings and is arranged on the pinch roll by fixedly arranging the slotting tool on the pinch roll, greatly simplifies the structure of the slotting tool assembly and has simple structure; meanwhile, the slotting tool is fixed, so that the friction noise between the slotting tool and the paper clamping tool is smaller, the service life is longer, and the slotting tool is suitable for high-speed rotation; meanwhile, the length of the shifting fork is along the outer edge of the pinch roll, when the napkin is fed between the two pinch rolls, the napkin can be always guaranteed to be discharged from the outer edge of the pinch roll, and the problem that the napkin is clamped into a gap between the shifting fork and the pinch roll to cause paper jam is avoided.

Drawings

Fig. 1 is a schematic perspective view of a discharging device for producing napkin paper according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of one of the pinch rollers of the discharging device for producing napkin shown in FIG. 1;

FIG. 3 is a schematic perspective view of another pinch roll of the discharging device for producing napkin shown in FIG. 1;

fig. 4 is a schematic top view of the pinch rolls of fig. 2 and 3.

Reference numerals in FIGS. 1 to 4: 1-a frame; 2-pinch roll; 3, shifting a fork; 4-a rotation mechanism; 5-a swing mechanism; 6-a slotting tool assembly; 7-a paper clamping knife assembly; 11-a support plate; 12-side plates; 21-a first mounting groove; 22-a second mounting groove; 23-a third mounting groove; 41-a main shaft; 43-a first bearing seat; 44-a cam; 51-a declutch shift shaft; 52-a second bearing housing; 53-connecting rod; 54-a second bearing; 61-slotting tool; 62-a slotting tool pressing plate; 71-a paper clamping knife; 72-a paper clamping knife transmission mechanism; 721-cam rocker arm; 722-a spring; 723-spring block; 724-third bearing.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in figures 1-4, the discharging device for producing the napkin paper comprises a frame 1, two pinch rollers 2, a shifting fork 3, a rotating mechanism 4 and a swinging mechanism 5. The outer edges of the pinch rolls 2 abut against each other, and the frame 1 comprises two support plates 11 and two side plates 12. Two parallel support plates 11 are bolted by two side plates 12 perpendicular to the support plates 11. The rotating mechanism 4 includes a motor, two main shafts 41, a first bearing (not shown), and a first bearing seat 43. The two main shafts 41 are respectively sleeved with a pinch roll 2, a first bearing (not shown) and a first bearing seat 43 are mounted at two ends of each main shaft 41, the first bearing seats 43 are respectively fixed on the two supporting plates 11 by bolts, and the motor is in power connection with one end of the two main shafts 41 through a gear transmission mechanism.

The two pinch rolls 2 of the present embodiment are each provided with a slotting cutter assembly 6 and a paper clamping cutter assembly 7. The slotting tool assembly 6 and the paper clamping tool assembly 7 are respectively and fixedly arranged on the outer wall of the pinch roll 2. The slotting cutter assembly 6 of the present embodiment includes a slotting cutter 61, a slotting cutter pressing plate 62, and a fastener (not shown in the drawings). The slotting tool 61 is strip-shaped, and the end part is provided with a blade point. The knife edge part is provided with a plurality of notches. The slotting cutter pressing plate 62 of the present embodiment may be a stainless steel slotting cutter pressing plate, and the slotting cutter pressing plate 62 corresponds to the slotting cutter 61. The pinch roll 2 is provided with a first mounting groove 21 and a second mounting groove 22, and the second mounting groove 22 is communicated with the first mounting groove 21. The first mounting groove 21 is used for mounting the insert 61, and the second mounting groove 22 is used for mounting a fastener. The fastening member of this embodiment may be a fastening screw, and the second mounting groove 22 is a screw fixing hole. The first mounting groove 21 is similar to the shape of the slotting cutter 61 and is opened along the length direction of the pinch roll 2. The second mounting grooves 22 are plural, and the plural second mounting grooves 22 are perpendicular to the first mounting groove 21. The slotting tool pressing plate 62 and the slotting tool 61 are both installed on the first installation groove 21, and one end of the fastener penetrates through the second installation groove 22 and is pressed on the slotting tool pressing plate 62. Therefore, the arrangement of the slotting tool pressing plate 62 can ensure the fastening effect of the fastening piece, and meanwhile, the fastening piece can be ensured not to be in direct contact with the slotting tool 61, so that the service life of the slotting tool 61 is prolonged; the slotting tool 61 can be conveniently and quickly detached from the pinch roll 2 by unscrewing a little fastener, the slotting tool 61 can be conveniently replaced by the fastener, and the use is convenient. The slotting tool 61 is fixedly arranged on the outer wall of the pinch roll 2, the traditional mode that the slotting tool 61 is arranged on the pinch roll 2 in a swinging mode is replaced, the structure of the slotting tool assembly 6 is greatly simplified, and the structure is simple.

The paper clamping blade assembly 7 of the present embodiment includes a paper clamping blade 71 and a paper clamping blade transmission mechanism 72. The paper clamping knife transmission mechanism 72 is matched with the rotating mechanism 4, the paper clamping knife transmission mechanism 72 is driven to rotate when the two pinch rollers 2 rotate, the paper clamping knife transmission mechanism 72 drives the paper clamping knife 71 to swing to clamp paper, and the paper clamping knife transmission mechanism 72 can drive the paper clamping knife 71 to swing. As shown in fig. 1 and 4, the knife assembly 6 of the pinch roll 2 on the left side of the present embodiment is engaged with the paper gripper assembly 7 of the pinch roll 2 on the right side, and the napkin is conveyed to the paper gripper 71 of the paper gripper assembly 7 of the pinch roll 2 on the right side.

the slotting tool 61 of the present embodiment is a plastic slotting tool. Therefore, the napkin paper can not be scratched by the plastic slotting cutter, and the napkin paper can be smoothly conveyed to the paper clamping cutter 71.

The paper jam knife transmission mechanism 72 of the present embodiment includes a cam rocker 721, a spring 722, a spring block 723, and a third bearing 724. The main shaft 41 is also sleeved with a cam 44, and the cam 44 is arranged above the first bearing seat 43 and is positioned at the bottom of the pinch roll 2. The cam rocker 721 is sleeved on the end of the paper clamping knife 71, the third bearing 724 is fixedly installed at one end of the cam rocker 721, the outer wall of the third bearing 724 abuts against the outer wall of the cam 44, one end of the spring 722 abuts against a spring block 723 installed on the pinch roller 2, and the other end of the spring abuts against the other end of the cam rocker 721. Therefore, when a napkin enters between the pinch rollers 2, the insertion knife 61 of the pinch roller 2 on the left inserts the napkin into the middle of the paper clamping knife 71 of the pinch roller 2 on the right, due to the force of the spring 722 on the pinch roller 2 on the right acting on the cam rocker 721, the third bearing 724 slides down the cam 44, the paper clamping knife 71 is closed to clamp the napkin, the insertion knife 61 is drawn out along with the synchronous rotation of the two pinch rollers 2, when the third bearing 724 contacts the cam 44 again, the cam rocker 722 compresses the spring 722, the paper clamping knife 71 is opened, and the napkin is separated from the pinch rollers 2.

The swing mechanism 5 of the present embodiment includes a fork shaft 51, a second bearing housing 52, a link 53, and a second bearing 54. The second bearing 54 is eccentrically mounted at the other end of the two main shafts 41 through a sleeve shaft 55, the second bearing 54 abuts against a connecting rod 53, the connecting rod 53 is bolted to one end of a shift fork shaft 51, two ends of the shift fork shaft 51 are respectively fixed to the two support plates 11 through second bearing seats 52, the shift fork shaft 51 is arranged between the two support plates 11 and is perpendicular to the two support plates 11, five shift forks 3 are mounted on the shift fork shaft 51, the shift forks 3 are arranged in parallel, each shift fork 3 is mounted along the outer edge of the corresponding pinch roll 2, one end of each shift fork 3 is inserted into the shift fork shaft 51 and is bolted, and the other end of each shift fork 3 is located in a shift fork pulling groove (not marked in the drawing) on the outer wall of the two pinch rolls.

When the napkin is conveyed by the discharging device for napkin production, the napkin is fed between the two pinch rollers 2 along the arrow direction of fig. 4, the motor drives the gear transmission mechanism and drives the two spindles 41 to rotate, and the two pinch rollers 2 synchronously rotate, when the napkin enters between the two pinch rollers 2, the slotting tool 61 of the pinch roller 2 on the left inserts the napkin into the middle of the paper clamping tool 71 of the pinch roller 2 on the right, because the force exerted on the cam rocker arm 721 by the spring 722 on the pinch roller 2 on the right causes the third bearing 724 to slide down the cam 44, and the paper clamping tool 71 is closed to clamp the napkin, as the two pinch rollers 2 synchronously rotate, the slotting tool 61 is withdrawn, when the third bearing 724 contacts the cam 44 again, the cam rocker arm 721 compresses the spring 722, the paper clamping tool 721 is opened, the napkin is separated from the pinch rollers 2, and then the napkin is fed out from between the pinch rollers 2, and the spindles 41 drive the sleeve shaft 55 and the second bearing 54 to eccentrically rotate to push the connecting rod 53 to swing, thereby driving the shift fork shaft 51 to rotate, and further driving each shift fork 3 to swing outwards alternately to push out the napkin paper for folding. As shown in figure 4, the other end of the shifting fork 3 is located at the outer edge of the two pinch rollers 2, the length of the shifting fork 3 is along the outer edge of the pinch rollers 2, and when napkin is fed between the two pinch rollers 2, the napkin is swung and pushed out by the shifting fork 3 from the outer edge of the two pinch rollers 2, so that the napkin is guaranteed to be discharged from the outer edge of the two pinch rollers 2 all the time, and the problem of paper jam caused by the fact that the napkin is clamped into a gap between the shifting fork 3 and the pinch rollers 2 is avoided.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (7)

1. Discharging device for napkin production, which is characterized by comprising a rack (1), two pinch rollers (2) and a rotating mechanism (4), wherein the outer edges of the pinch rollers (2) are mutually abutted and mounted on the rack (1), the pinch rollers (2) are connected with the rotating mechanism (4) for driving the pinch rollers (2) to rotate, the two pinch rollers (2) have the same structure, each pinch roller is provided with an inserted knife assembly (6) and a paper clamping knife assembly (7), the inserted knife assembly (6) and the paper clamping knife assembly (7) are respectively and fixedly mounted on the pinch rollers (2), the inserted knife assembly (6) comprises an inserted knife (61), the inserted knife (61) is fixedly mounted on the pinch rollers (2), the paper clamping knife assembly (7) comprises a paper clamping knife (71) and a paper clamping knife driving mechanism (72), and the paper clamping knife driving mechanism (72) is driven to drive the paper clamping knife (71) to swing and clamp paper when the pinch rollers (2) rotate, the slotting tool assembly (6) of one pinch roll (2) is matched with the paper clamping knife assembly (7) of the other pinch roll (2) for conveying the napkin to the paper clamping knife (71) of the paper clamping knife assembly (7).

2. The discharging device for producing the napkin paper according to claim 1, wherein the slotting tool assembly (6) further comprises a slotting tool pressing plate (62) and a fastening piece, the pinch roll (2) is provided with a first mounting groove (21) and a second mounting groove (22), the second mounting groove (22) is communicated with the first mounting groove (21), the slotting tool pressing plate (62) and the slotting tool are both mounted in the first mounting groove (21), and one end of the fastening piece penetrates through the second mounting groove (22) and is pressed on the slotting tool pressing plate (62).

3. the discharging device for producing napkins according to claim 1, wherein said knife (61) is a plastic knife.

4. The discharging device for producing the napkin paper according to any one of claims 1 to 3, further comprising a shifting fork (3) and a swinging mechanism (5), wherein the swinging mechanism (5) is installed on the frame (1), the swinging mechanism (5) is in contact with the rotating mechanism (4), the swinging mechanism (5) is used for driving the shifting fork (3) to swing, the shifting fork (3) is respectively installed on the swinging mechanism (5) along the outer edges of the two pinch rollers (2), and the tail end of the shifting fork (3) is located in a shifting fork groove of the two pinch rollers (2).

5. The discharging device for producing the napkin paper according to claim 4, wherein the frame (1) comprises two supporting plates (11) and two side plates (12), two of the supporting plates (11) are installed in parallel through two side plates (12) perpendicular to the supporting plates (11), the rotating mechanism (4) comprises a motor, two main shafts (41), a first bearing and a first bearing seat (43), two of the main shafts (41) are respectively sleeved with one pinch roller (2), the first bearing and the first bearing seat (43) are installed at two ends of each main shaft (41), the first bearing seat (43) is respectively fixed on the two supporting plates (11), and the motor is dynamically connected with one end of the two main shafts (41).

6. The discharging device for producing the napkin paper according to claim 5, wherein the swinging mechanism (5) comprises a shifting fork shaft (51), a second bearing seat (52), a connecting rod (53) and a second bearing (54), the second bearing (54) is eccentrically installed at the other end of the two main shafts (41) and abuts against the connecting rod (53), the connecting rod (53) is connected with one end of the shifting fork shaft (51), the two ends of the shifting fork shaft (51) are respectively fixed on the two supporting plates (11) through the second bearing seat (52), the shifting fork shaft (51) is located between the two supporting plates (11), at least two shifting forks (3) are installed on the shifting fork shaft (51), and the shifting forks (3) are arranged in parallel.

7. The discharging device for napkin production according to claim 5, wherein the nip knife transmission mechanism (72) comprises a cam rocker (721), a spring (722), a spring block (723) and a third bearing (724), the main shaft (41) is also sleeved with a cam (44), the cam (44) is arranged above the first bearing seat (43) and is positioned at the bottom of the pinch roll (2), the cam rocker (721) is sleeved at the upper end and the lower end of the paper clamping knife (71), the third bearing (724) is fixedly arranged at one end of the cam rocker (721) at the lower end of the paper clamping knife (71), the outer wall of the third bearing (724) is in contact with the outer wall of the cam (44), one end of the spring (722) is abutted against a spring block (723) arranged on the pinch roll (2), and the other end of the spring (722) is abutted against the other end of the cam rocker (721).