CN109160340B

CN109160340B - Glue-free splicing device and glue-free splicing method for paper tape

Info

Publication number: CN109160340B
Application number: CN201811343197.3A
Authority: CN
Inventors: 王保会; 冯银龙; 赵振伟; 张永江; 鲁平; 陈建中; 张天奇; 慕平利; 李惠君; 鲁小凤
Original assignee: China Tobacco Henan Industrial Co Ltd
Current assignee: China Tobacco Henan Industrial Co Ltd
Priority date: 2018-11-13
Filing date: 2018-11-13
Publication date: 2020-06-23
Anticipated expiration: 2038-11-13
Also published as: CN109160340A

Abstract

The invention relates to a glue-free splicing device and a glue-free splicing method for paper tapes, which comprise a rack, an accelerating assembly, a rolling device, a guide assembly and a blade assembly, wherein the rolling device comprises a smooth surface pressing roller, a knurling pressing roller, a driven shaft and a driving shaft, the knurling pressing roller is arranged on the driving shaft, the peripheries of the smooth surface pressing roller and the knurling pressing roller are arc surfaces, a gap is reserved between the smooth surface pressing roller and the knurling pressing roller, two paper tapes are spliced, the trend of one paper tape is tangent to the outer circumference of the smooth surface pressing roller, and the trend of the other paper tape is tangent to the outer circumference of the knurling pressing roller; the blade assembly comprises a support shaft and a blade, and the support shaft is connected to the driving shaft; the invention also relates to a glue-free splicing method for the paper tape. The glue-free splicing device and the glue-free splicing method realize the glue-free splicing process, improve the production efficiency, reduce the failure times and reduce the economic cost.

Description

Glue-free splicing device and glue-free splicing method for paper tape

Technical Field

The invention relates to the field of paper tape splicing, in particular to a glue-free splicing device and a glue-free splicing method for a paper tape.

Background

Paper tape packaging is a packaging form widely adopted at present and is widely used in the fields of tobacco, candy food and the like; particularly in the tobacco industry, tobacco shreds and filter sticks are packaged by using paper tapes, the packaging paper tapes mostly exist in the form of paper tape rolls or paper tape rollers before being used, and after one paper tape is used, the packaging paper tape needs to be quickly connected with another paper tape roll to realize continuous production.

Food packaging is mostly in a flow production mode, equipment is required to be paused or slowed down in connection between paper tapes, then the tail section of the former paper tape is bonded with the first section of the latter paper tape, and double-sided adhesive tape, solid adhesive tape or liquid adhesive tape is required in paper tape connection. In the tobacco industry, tobacco shreds and filter sticks are all packaged by cigarette paper (formed paper tape), and double-sided adhesive tapes are generally used for automatic lap joint, for example, in the traditional cigarette types such as ZL22, ZL26 and ZL29, the existing equipment for lap joint by adopting double-sided adhesive tapes has the following problems:

1. the speed reduction splicing mode is adopted, so that the cigarette production yield is reduced, and the effective operation rate of the rolling and splicing equipment is influenced;

2. the double-sided roll splicing is adopted, so that the joint section has large waste, and the joint section is detected and eliminated by a host through a sensor, so that faults are easy to occur;

3. the double-sided adhesive tape can generate harmful substances when being burnt in the cigarette smoking process, damage the human health and is inconsistent with the increasingly improved health consciousness of people;

4. the use of the double-sided adhesive tape has certain economic cost;

5. the splicing quality is poor, and the problems of blockage, paper breakage, strip running and the like are easy to occur.

Recently, the invention patent CN205739630U in china protects a glue-free splicing device to solve the above problems, but the structure adopts a convex-concave double-roller design, so that the spliced part deforms greatly, even the spliced part paper tape is broken, and the parts for pinching the head of the new paper tape and removing the tail of the old paper tape are unreasonable in arrangement, which is easy to cause errors, and causes the interruption of the paper tape conveying process, and the paper tape must be stopped to recover, thereby affecting the production efficiency.

Therefore, a new cigarette paper splicing device is needed, the use of double faced adhesive tape, solid or liquid adhesive tape is abandoned, the splicing quality can be effectively ensured, and the splicing efficiency is improved.

Disclosure of Invention

The invention aims to provide a glue-free splicing device with a better structure, which realizes the glue-free splicing process and optimizes the efficiency and the reliability of equipment.

In order to achieve the purpose, the invention adopts the technical scheme that:

a glue-free splicing device for paper tapes comprises a rack, an accelerating assembly, a rolling device, a guide assembly and a blade assembly, wherein the rolling device comprises a smooth surface pressing roller, a knurling pressing roller, a driven shaft and a driving shaft, the smooth surface pressing roller and the knurling pressing roller are arranged in parallel, the smooth surface pressing roller is arranged on the driven shaft, the knurling pressing roller is arranged on the driving shaft, the peripheries of the smooth surface pressing roller and the knurling pressing roller are arc surfaces, a gap is reserved between the smooth surface pressing roller and the knurling pressing roller, two paper tapes for splicing are arranged, the direction of one paper tape is tangent to the outer circumference of the smooth surface pressing roller, and the direction of the other paper tape is tangent to the outer circumference of the knurling pressing roller; the blade subassembly include short connecting rod, eccentric cam, back shaft and blade, the downside at the protruding portion of eccentric cam is installed to the back shaft, the blade is installed on the back shaft, the rotatable connection of short connecting rod one end on the fixed point, the other end is articulated with the protruding portion of eccentric cam, eccentric cam installs on the driving shaft.

Specifically, the knurling press roller has stripe-shaped, grid-shaped or dot-shaped knurling lines.

In order to ensure the splicing quality, the gap between the smooth surface pressing roller and the knurling pressing roller is 0-0.03mm, and the rotating radiuses of the smooth surface pressing roller and the knurling pressing roller are 25 +/-0.015 mm.

In order to adjust the gap and the selected radius, adjusting gaskets are arranged between the smooth surface pressing roller and the driven shaft and between the knurling pressing roller and the driving shaft.

Specifically, the thickness of the adjusting shim is 0.01-1.0 mm.

Specifically, the thickness of the adjusting shim is 0.01mm, 0.04mm or 0.1 mm.

Further, the guide assembly comprises a free roller, a negative pressure roller and a guide roller, the free roller is arranged in front of the rolling device, and the negative pressure roller and the guide roller are arranged behind the rolling device.

Further, the accelerating component is arranged behind the guide roller and comprises a motor and an accelerating roller.

In addition, the invention also discloses a glue-free splicing method for the paper tape, which is realized by the glue-free splicing device and comprises the following specific steps:

A. when the used paper roll is not used up, the rolling device is still, and the using amount of the used paper tape is monitored;

B. when detecting that the old paper roll is about to be used up, sending a signal to a control device, issuing an instruction by a control system to start a splicing process, pre-loading and setting a new paper tape wound in the paper direction, and accelerating by an accelerating roller;

C. when the detection device detects that the speeds of the new paper tape and the old paper tape are consistent, the rolling device acts, the rolling motor is started, the knurling roller drives the smooth surface roller to rotate, the edge of the smooth surface roller is contacted with the new paper roll, and a part of the head of the new paper roll is broken;

D. then, the knurling compression roller and the smooth surface compression roller are pressed mutually, and a part of the new paper roll with the head removed and a part of the old paper tape are pressed together to realize glue-free splicing;

E. and finally, the blade component is lifted up along with the driving of the knurling compression roller, the tail of the old paper roll is touched, the tightened paper tape is cut off, and the final process of glue-free splicing is completed.

Preferably, the running speed of the roll motor is 400 m/min.

The invention has the following beneficial effects:

1. the use of glue substances is effectively avoided, harmful substances are reduced, and the material cost is reduced;

2. by means of the optimized double-roller structure and the head and tail nipping and removing device, the operation failure rate is reduced, the high-speed splicing of the cigarette paper is realized, the effective operation rate of the cigarette rolling and connecting equipment is ensured, and the production efficiency of the cigarette is directly improved;

3. the loss of the joint section is reduced, the deformation and the damage are avoided, and the economic cost is further reduced;

4. the equipment has the advantages of reasonable integral structure, compact layout, simple installation and adjustment and convenient operation, and can be effectively compatible with the existing rolling device.

Drawings

FIG. 1 is a front view of the overall construction of the glueless splicing apparatus of the present invention;

FIG. 2 is a perspective view of the overall structure of the glueless splicing apparatus of the present invention;

FIG. 3 is a left side view of the overall structure of the glueless splicing apparatus of the present invention;

FIG. 4 is a schematic view of the structure of the rolling device of the present invention;

FIG. 5 is a schematic structural view of a smooth surface press roll and a knurling press roll in the invention;

FIG. 6 is a cross-sectional view of a smooth calender roll and a knurled calender roll of the present invention;

FIG. 7 is a schematic view of the structure of the spacer of the present invention;

FIG. 8 is a schematic structural view and a sectional view of a driving shaft in the present invention;

FIG. 9 is a schematic structural view and a sectional view of a driven shaft according to the present invention;

FIG. 10 is a schematic view of the installation of the knurling rolls with the drive shaft of the present invention;

FIG. 11 is a schematic illustration of the glueless splicing process of the present invention;

fig. 12 and 13 are structural views of parts of the blade assembly of the present invention.

Detailed Description

The invention relates to a glue-free splicing device for paper tapes, which is particularly suitable for the wrapping process in the tobacco industry, and is further explained by combining the attached drawings, wherein for the convenience of understanding, the invention determines the directions of a consumed paper roll as an 'old paper roll', a full paper roll to be replaced as a 'new paper roll', a 'front' direction, a 'rear' direction and the like according to the conveying direction of the paper tapes, and the conveying direction is a 'front' direction and the reverse direction is a 'rear' direction.

As shown in fig. 1 and fig. 2, the overall structure of the glueless splicing device for paper tapes is schematically shown, and the device mainly comprises a frame 1, an accelerating assembly 2, a rolling device 3, a guiding assembly 5/6/7 and a blade assembly 8. The frame 1 is a flat plate structure, the accelerating component 2, the rolling device 3, the guiding component 5/6/7 and the blade component 8 are all installed on one side of the frame, and the main functions of each component are as follows: the accelerating component is used for accelerating the new paper roll to the speed of the old paper roll (namely the paper tape supplying speed in the normal cigarette making process) in a short time, and is ready for lapping the new paper tape and the old paper tape; the rolling device rolls the new paper tape and the old paper tape together through a specially designed press roller, which is a key step for realizing glue-free splicing; the guide assembly is used for guiding the new paper roll and the old paper roll to be conveyed according to the designed direction; the blade assembly is used for removing a small part of the tail of the old paper roll and a small part of the head of the new paper roll; in addition, a detection assembly 4 is provided for detecting the degree of use of the used paper roll and for initiating the splicing procedure when the used paper roll is about to be used up.

As shown in fig. 3, the accelerating assembly 2 includes an accelerating motor 22 and an accelerating roller 21, the accelerating roller 21 and the accelerating motor 22 are respectively disposed at two sides of the frame 1, and after the splicing procedure is started, the accelerating motor operates to accelerate the new paper tape to the same conveying speed of the old paper tape.

As shown in fig. 3 and 4, the rolling device 3 includes a smooth surface rolling roller 31, a knurling rolling roller 32, a driven shaft 33, a driving shaft 34, and a rolling motor 35, wherein the smooth surface rolling roller 31, the knurling rolling roller 32, the driven shaft and the accelerating roller 21 are on the same side of the frame 1, and the rolling motor is on the other side; the smooth pressing roller 31 and the knurling pressing roller 32 are arranged in parallel, and in a specific embodiment, the up-down positions of the smooth pressing roller 31 and the knurling pressing roller 32 are determined according to specific positions of the accelerating assembly, the blade assembly and the guide assembly 5/6/7; the smooth surface pressing roller is installed on the driven shaft, the knurling pressing roller is installed on the driving shaft, the driving shaft penetrates through the rack to be connected with the rolling motor, a gear meshing device 37 (shown in figure 3) is arranged between the driving shaft and the driven shaft, and the driving shaft can drive the driven shaft to rotate.

As shown in fig. 5, the peripheries of the smooth pressing roller 31 and the knurled pressing roller 32 are arc surfaces, and the outer surfaces are a part of a cylindrical surface, and the knurled pressing roller is provided with stripe-shaped, grid-shaped or dot-shaped knurled lines, preferably, the two rollers have the same arc length, and a certain gap is formed between the two rollers; according to the thickness of different paper rolls, in order to realize the rolling splicing, the gap between the smooth surface pressing roller and the knurling pressing roller is adjusted to be 0-0.03mm, and in addition, preferably, in order to take high-speed rotation and splicing quality into consideration, the rotating radiuses of the smooth surface pressing roller 31 and the knurling pressing roller 32 are 25 +/-0.015 mm. As shown in fig. 6, the smooth pressing roller 31 and the knurled pressing roller 32 are both provided with threaded holes for fixing the smooth pressing roller and the knurled pressing roller on the shaft.

The clearance and the radius of rotation between plain noodles compression roller, the annular knurl compression roller are adjusted through adjusting shim 36 gasket, and adjusting shim's structure is shown in fig. 7, adjusting shim install respectively between plain noodles compression roller 31 and passive axle 33 and between annular knurl compression roller 32 and driving shaft 34, adjusting shim 36 has a plurality of models, the thickness of gasket is between 0.01-1.0mm, and three size models of commonly used are 0.01, 0.04, 0.1mm, when equipment was installed for the first time or change the scroll of different thickness at every turn, all need increase or reduce adjusting shim to guarantee high-quality concatenation effect.

The structure of the driven shaft 33 and the driving shaft 34 is as shown in fig. 8 and 9, and stepped through holes matched with the smooth surface pressing roller 31, the knurling pressing roller 32 and the adjusting gasket 36 are arranged on the driven shaft 33 and the driving shaft 34; the driving shaft 34 and the knurling roller 32 are mounted in a manner shown in fig. 10, the driving shaft 34 and the shim are engaged with holes formed in the knurling roller 32, and they are connected together by bolts, which are not shown, and the driven shaft 33 and the shim are connected to the smooth knurling roller 32 in a manner similar thereto, which will not be described in detail.

In the structure, the smooth roller-embossing roller matched structure is adopted, compared with the structure of two embossing rollers or concave-convex rollers, the matched structure effectively avoids excessive deformation and even breakage of the spliced part, the meshing is tighter, the splicing quality is ensured, the structure is obtained according to numerous experimental attempts and creative ideas of an inventor, and better splicing effect can be realized compared with other glue-free splicing forms.

As shown in fig. 11, the paper winding direction of the old paper roll is approximately tangent to the rotation circumference of the knurling press roller 32, the paper winding direction of the new paper roll is tangent to the rotation circumference of the smooth press roller 31, when splicing is needed, the knurling press roller 32 drives the smooth press roller 31 to rapidly rotate, the edge of the smooth press roller 31 can touch the new paper roll, and similarly, because the tension is very high when the paper tape is driven at a normal speed, the smooth press roller 31 collides with the new paper tape at a linear speed higher than the speed of the paper tape at this time, excessive paper head parts of the new paper tape are collided, and the head pinching action of the new paper roll is performed.

As shown in fig. 1 and 2, the guide assembly 5/6/7 includes a free roller 5, a negative pressure roller 6 and a guide roller 7, the free roller 5 is arranged before the rolling device 3, and preferably, the number of the free rollers 5 is 3, and the free rollers are used for guiding the new and old paper tapes to be conveyed to the rolling device 3; negative pressure roller 6 and guide roll 7 set up behind roll-in device 3, negative pressure roller 6 includes exhaust tube, negative pressure axle, two rings of rectifying, the epaxial negative pressure opening that has of negative pressure for adsorb guide old paper tape and carry to the cigarette machine, guide roll 7 includes roller and two rings of rectifying, the guide roll is used for guiding the head of new paper tape to carry with higher speed subassembly 2, the paper trend of winding of new, old paper roll all needs to guarantee through the setting of direction subassembly 5/6/7.

The specific structure of the cutter assembly 8 is shown in fig. 12 and 13, and comprises a short connecting rod 83, a supporting shaft 81, a blade 82 and an eccentric cam 84, wherein the eccentric cam 84 is installed on the driving shaft 34, the blade 82 is installed at the lower part of the eccentric cam 84 through the supporting shaft 81, the blade 82 is directly installed on the supporting shaft, and the eccentric cam 84 is hinged with the short connecting rod 83, as shown in fig. 1. Preferably, the support shaft is connected to the eccentric cam 84 through a stepped mounting portion 85 and a connecting piece 86. The rotation track of the blade 82 is not concentric with the rotation track of the knurling press roller due to the action of the eccentric wheel, and the rotation radius is larger than that of the knurling press roller, so that the blade collides with the paper tape at an angle close to vertical; one end of the short link 83 is rotatably mounted on a fixed point, preferably on the suction shaft 6, via a bearing, and the other end is hinged to the end of the eccentric cam 84, limiting the upward stroke of the blade 82 in the form of a link.

Specifically, the eccentric cam 84 is mounted on the driving shaft 34 through a bearing 87 and an eccentric block 88 to realize the function of eccentric rotation. Preferably, the cutting head of the blade 82 is serrated, which is more effective in cutting. In order to fix the blade 82, through holes are formed in both ends of the supporting shaft 81, corresponding through holes are formed in the blade 82, the mounting portion 85, the connecting piece 86 and the eccentric cam 84, and the supporting shaft 81 is connected with the blade 82 and the eccentric cam 84 through bolts.

During the concatenation action, the roll-in motor rotates rapidly, and blade 82 can lift up to the top because the drive of driving shaft, touch old paper tape, and old paper tape tension is very big in normal work for the paper tape is tight very tightly, under sharp-pointed blade 82's touching, can be cut off in the twinkling of an eye, and this is exactly the action that the tail was rolled up to old paper.

The glue-free splicing device further comprises a scrap collecting groove 9, wherein the scrap collecting groove is used for collecting waste paper strips generated by nipping heads and removing tails, and subsequent treatment is facilitated.

The whole device operates as follows:

1. when the used paper roll is not used up, the rolling device 3 is still, the conveying power of the used paper tape is provided by other mechanisms (not shown), and the detection device monitors the using amount of the used paper tape;

2. when detecting that the old paper roll is about to be used up, sending a signal to a control device, issuing an instruction by a control system to start a splicing process, pre-loading and setting a new paper tape wound in the paper direction, and accelerating by an accelerating roller;

3. when the detection device detects that the speeds of the new paper tape and the old paper tape are consistent, the rolling device 3 acts, the rolling motor is started, the knurling pressing roller 32 drives the smooth surface pressing roller 31 to rotate, the edge of the smooth surface pressing roller 31 is contacted with the new paper roll, and a part of the head of the new paper roll is broken;

4. then, the knurling compression roller 32 and the smooth surface compression roller 31 are pressed mutually, and a part of the new paper roll with the head removed and a part of the old paper tape are pressed together, so that glue-free splicing is realized;

5. finally, the blade component 8 is lifted up along with the driving of the knurling compression roller 32, and touches the tail part of the old paper roll, and the tightened paper tape is cut off, so that the final procedure of glue-free splicing is completed.

Wherein, the running speeds of the accelerating motor 22 and the rolling motor 35 are 400 m/min, and the cigarette speed of more than 8000 cigarettes/min can be met.

According to the invention, through the special design of the paper winding trend of the new paper roll and the old paper roll and the reasonable arrangement of the smooth roll and the embossing roll, glue-free splicing and head and tail removing actions are effectively realized, the operation failure rate is reduced, the high-speed splicing of cigarette paper is realized, the effective operation rate of the cigarette rolling and splicing equipment is ensured, and the production efficiency of cigarettes is directly improved; the removal of glue substances reduces harmful substances of the cigarettes, conforms to the trend of reducing harm in the tobacco industry, and reduces the cost of consumable materials; by utilizing the device, the loss of new and old paper tapes caused by one-time splicing is reduced to be within 5 meters, the waste of deformation and breakage of the splicing section is solved, and the economic cost is further reduced.

Finally, it should be noted that: while the invention has been described in terms of specific embodiments, it will be apparent to those skilled in the art in light of the teachings herein that the invention can be modified in other ways. The scope of the present invention is defined by the claims, but other embodiments that do not substantially differ from the claims should also be construed as within the scope of the present invention.

Claims

1. The utility model provides a no glue splicing apparatus for paper tape, includes frame, acceleration component, roll-in device, direction subassembly, blade subassembly, its characterized in that: the roll pressing device comprises a smooth surface roll pressing roller, a knurling roll pressing roller, a driven shaft and a driving shaft, wherein the smooth surface roll pressing roller and the knurling roll pressing roller are arranged in parallel, the smooth surface roll pressing roller is arranged on the driven shaft, the knurling roll pressing roller is arranged on the driving shaft, the peripheries of the smooth surface roll pressing roller and the knurling roll pressing roller are arc surfaces, a gap exists between the smooth surface roll pressing roller and the knurling roll pressing roller, two paper tapes for splicing are arranged, the direction of one paper tape is tangent to the outer circumference of the smooth surface roll pressing roller, the direction of the other paper tape is tangent to the outer circumference of the knurling roll pressing roller, and the paper tape is used for breaking the paper head redundant part; the blade subassembly include short connecting rod, eccentric cam, back shaft and blade, the downside at the protruding portion of eccentric cam is installed to the back shaft, the blade is installed on the back shaft, the rotatable connection of short connecting rod one end on the fixed point, the other end is articulated with the protruding portion of eccentric cam, eccentric cam installs on the driving shaft.

2. The glueless splicing device of claim 1, wherein: the arc surface of the knurling press roller is provided with stripe-shaped, grid-shaped or point-shaped knurling grains.

3. A glueless splicing device according to claim 1 or 2, wherein: the gap between the smooth surface pressing roller and the knurling pressing roller is 0-0.03mm, and the rotating radius of the smooth surface pressing roller and the knurling pressing roller is 25 +/-0.015 mm.

4. A glueless splicing device according to claim 3, wherein: adjusting gaskets are arranged between the smooth surface pressing roller and the driven shaft and between the knurling pressing roller and the driving shaft.

5. The glueless splicing device of claim 4, wherein: the thickness of the adjusting shim is 0.01-1.0 mm.

6. The glueless splicing device of claim 5, wherein: the thickness of the adjusting shim is 0.01mm, 0.04mm or 0.1 mm.

7. A glueless splicing device according to claim 1 or 2, wherein: the guide assembly comprises a free roller, a negative pressure roller and a guide roller, the free roller is arranged in front of the rolling device, and the negative pressure roller and the guide roller are arranged behind the rolling device.

8. A glueless splicing device according to claim 1 or 2, wherein: the accelerating component is arranged behind the guide roller and comprises a motor and an accelerating roller.

9. A glue-free splicing method for paper tapes is characterized by comprising the following steps: the method is realized by the glue-free splicing device of any one of claims 1-8, and comprises the following specific steps:

when the used paper tape is not used up, the rolling device is still, and the using amount of the used paper tape is monitored;

when detecting that the old paper tape is about to be used up, sending a signal to a control device, issuing an instruction by a control system to start a splicing process, pre-loading and setting a new paper tape which winds the paper, and accelerating by an accelerating roller;

when the detection device detects that the speeds of the new paper tape and the old paper tape are consistent, the rolling device acts, the rolling motor is started, the knurling roller drives the smooth surface roller to rotate, the edge of the smooth surface roller is contacted with the new paper tape, and a part of the head of the new paper tape is broken;

then, mutually pressing a knurling compression roller and a smooth surface compression roller, and rolling a part of the new paper tape with the head removed and a part of the old paper tape together to realize glue-free splicing;

and finally, the blade component is lifted up along with the driving of the knurling press roller, the tail of the used paper tape is touched, the tightened used paper tape is cut off, and the final procedure of glue-free splicing is completed.

10. The glue-free splicing method of claim 9, wherein: the running speed of the roll motor was 400 m/min.