CN111604987A

CN111604987A - Bidirectional paperboard splitting machine

Info

Publication number: CN111604987A
Application number: CN202010415213.6A
Authority: CN
Inventors: 刘鑫; 郑荣雀; 陈日超
Original assignee: Zhejiang Saili Machinery Co ltd
Current assignee: Zhejiang Saili Intelligent Manufacturing Co.,Ltd.
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-09-01

Abstract

The invention relates to a bidirectional paperboard splitting machine capable of enabling a paperboard cut surface to be smoother. This kind of two-way cardboard cutting machine is including two mechanisms of cutting, its characterized in that: the slitting mechanism comprises a base, a slitting knife, a slitting roller and a plurality of guide rollers, wherein the slitting knife is installed on the rear side of the slitting roller, a paper pressing belt is wound on the guide rollers and acts on the slitting roller, a feed inlet and a discharge outlet are formed between the paper pressing belt and the slitting roller, and the feed inlet of the first slitting mechanism is connected with the feed inlet of the second slitting mechanism in a conveying mode through a conveying device. This kind of two-way cardboard cuts mechanism presses the cardboard to carry through the pressure leatheroid area, recycles branch cutting roller and cuts the cardboard with dividing cutter complex mode, and the effect of cutting of cardboard is better like this, and the cardboard tangent plane is more smooth.

Description

Bidirectional paperboard splitting machine

Technical Field

The invention relates to a paperboard slitting mechanism.

Background

The paperboard slitting machine is equipment for slitting paperboards. A paperboard slitting machine typically has two slitting stations, one of which performs transverse slitting of the paperboard and the other of which performs longitudinal slitting of the paperboard, such that a large paperboard is slit into a plurality of smaller pieces. However, the slitting mechanism of the current cardboard slitting machine performs slitting by two slitting knives in a pressing manner, as shown in fig. 4, however, the pressing type slitting method can generate burrs on the cut surface of the cardboard.

Disclosure of Invention

In view of the defects in the prior art, the invention innovatively provides the bidirectional paperboard splitting machine which can enable the cut surfaces of the paperboards to be smoother.

This kind of two-way cardboard cutting machine is including two mechanisms of cutting, its characterized in that: the slitting mechanism comprises a machine base, a slitting knife, a slitting roller and a plurality of guide rollers which are arranged on the machine base, the slitting knife is arranged at the rear side of the slitting roller, a soft contact layer is adhered on the surface of the slitting roller, the tool nose of the slitting knife is contacted with the soft contact layer, the slitting roller is in transmission connection with a slitting power source which drives the slitting roller to rotate, paper pressing belts are wound on the plurality of guide rollers, the paper pressing belt is used on the slitting roller, a feed inlet and a discharge outlet are formed between the paper pressing belt and the slitting roller, the discharge outlet of the first slitting mechanism is located above, the feed inlet of the second slitting mechanism is located above, the discharge outlet of the first slitting mechanism is connected with the feed inlet of the second slitting mechanism in a conveying mode through a conveying device, the discharge direction of the first slitting mechanism is perpendicular to the conveying direction of the conveying device, and the feeding direction of the second slitting mechanism is the same as the conveying direction of the conveying device.

The guide roller at the feed inlet is sleeved with a bearing or movably sleeved with a rolling wheel.

A support shaft is arranged on the front side of the guide roller at the feed inlet, and a damping wheel is arranged on the support shaft.

The conveying device comprises an upper conveying mechanism and a lower pushing mechanism, the upper conveying mechanism is located above the lower pushing mechanism, the lower pushing mechanism comprises a pushing platform and a pushing block, a front paper board limiting part is arranged above the pushing platform, a distance allowing one paper board to pass through is arranged between the front paper board limiting part and the pushing platform, and an adjusting conveying mechanism capable of moving back and forth and adjusting is arranged between the upper conveying mechanism and the lower pushing mechanism.

Guide rails are arranged on two sides of the material pushing platform, and the adjusting and conveying mechanism is arranged on the guide rails in a sliding mode through sliding blocks.

The upper side of the material pushing platform is provided with a rear paper board limiting part, and a space for allowing one paper board to pass through is arranged between the rear paper board limiting part and the material pushing platform.

The material pushing block is installed on the adjusting seat, the adjusting seat is connected to the connecting seat through an adjusting shaft, the adjusting seat is provided with an angle adjusting long groove, an angle adjusting bolt is arranged in the angle adjusting long groove, and the angle adjusting bolt is in threaded connection with the connecting seat.

The adjusting seat is provided with a groove, the pushing block is arranged in the groove in a matching mode, the pushing block is provided with a through hole, a height adjusting bolt penetrates through the through hole, the height adjusting bolt is in threaded connection with the adjusting seat, and a spring is arranged between the pushing block and the adjusting seat.

The machine base is provided with a guide rod parallel to the axis of the slitting roller, the guide rod is slidably sleeved with an adhesive tape roll seat, and an adhesive tape roll is rotatably arranged on the adhesive tape roll seat.

According to the bidirectional paperboard cutting mechanism provided by the invention, the paperboard is pressed by the paper pressing belt for conveying, and then the paperboard is cut in a manner that the cutting roller is matched with the cutting knife, so that the cutting effect of the paperboard is better, and the cut surface of the paperboard is smoother.

Drawings

FIG. 1 is a perspective view of a slitting machine;

FIG. 2 is a cross-sectional view of the slitting mechanism;

FIG. 3 is an enlarged view of a portion of the feed opening of the slitting mechanism;

FIG. 4 is a schematic structural view of a conventional slitting knife;

FIG. 5 is a schematic structural view of a conveying device;

fig. 6 is a partial structure schematic diagram of the lower pushing mechanism.

Detailed Description

As shown in fig. 1, the bi-directional cardboard slitting machine comprises two slitting mechanisms A, B, a first slitting mechanism a for transverse slitting of the cardboard, and a second slitting mechanism B for longitudinal slitting of the cardboard, which are connected by a conveyor C.

The first splitting mechanism A and the second splitting mechanism B are identical in structure. The structure and working principle of the slitting mechanism will be described in detail below.

As shown in fig. 2, the slitting mechanism includes frame 1 and installs the branch cutter 6 on frame 1, cut roller 2 and a plurality of guide roll 3, divide cutter 6 to install the rear side at branch cutter roller 2, paste soft contact layer on the roll surface of cutting roller 2, the knife tip of branch cutter 6 contacts with soft contact layer, cut roller 2 and drive branch cutter roller 2 pivoted cut the power supply transmission and be connected, through the drive of cutting the power supply, cut roller 2 and realize rotating, around there being fly paper belt 5 on a plurality of guide roll 3 in addition, fly paper belt 5 acts on dividing cutter roller 2, fly paper belt 5 and cut have feed inlet and discharge gate between roller 2.

The during operation, the cardboard gets into from the feed inlet between paper pressing belt 5 and the roller of cutting 2, cuts roller 2 and rotates, and the cardboard just is pressed from both sides paper pressing belt 5 and is cut and remove along the cambered surface of cutting roller 2 between the roller 2, owing to paste soft contact layer (the cardboard is located the top of soft contact layer) on the roll surface of cutting roller 2, this soft contact layer with install the branch cutter contact of cutting the roller rear side, the knife tip of dividing cutter 6 just cuts the cardboard like this. Through the structure, the paper board is cut, and the cut surface of the paper board is smoother and more attractive. It should be noted that the flexible contact layer may be an adhesive tape, a rubber layer, or a cotton layer, as long as it is a flexible material capable of lifting up the paper board and allowing the cutting edge of the cutting knife 6 to penetrate through the paper board.

As described above, the flexible contact layer may be an adhesive tape, so as to facilitate the application of the adhesive tape and to apply the adhesive tape more smoothly, in the present invention, the guide rod 8 parallel to the axis of the slitting roller 2 is installed on the machine base 1, the adhesive tape roll holder 80 is slidably sleeved on the guide rod 8, and the adhesive tape roll 81 is rotatably installed on the adhesive tape roll holder 80. When the adhesive tape needs to be pasted, one end of the adhesive tape on the adhesive tape roll 81 is pulled out and pasted on the slitting roller 2, then the slitting roller 2 rotates, the adhesive tape is automatically pulled out and pasted on the slitting roller 2, and after one or more circles of adhesive tape are pasted, the adhesive tape is manually cut off. With this configuration, the adhesive tape can be more smoothly and smoothly attached to the slitting roll 2.

The discharge gate that first cut mechanism A is located the top, and the feed inlet that second cut mechanism B is located the top, realizes through conveyor C between the discharge gate that first cut mechanism A and the feed inlet that second cut mechanism B carrying, and the first ejection of compact direction that cuts mechanism A is perpendicular with conveyor C's direction of delivery, and the second feeds into direction that cuts mechanism B and conveyor C's direction of delivery are the same. After the transverse cutting of the paperboard is completed by the first cutting mechanism A, the paperboard comes to the conveying device C in the form of a transverse paperboard strip, and then the conveying device C conveys the paperboard to the second cutting mechanism B for longitudinal cutting.

At present, a conveying device C of the existing paperboard splitting machine only comprises an upper conveying mechanism and a lower pushing mechanism, after the transverse splitting of the paperboard is completed, the paperboard comes to the upper conveying mechanism, and when the paperboard enters the splitting station, the position of the paperboard must be positive (otherwise, the paperboard can be obliquely cut), so the upper conveying mechanism cannot directly convey the paperboard to the splitting station, the paperboard is conveyed to the lower pushing mechanism firstly, then the paperboard is pushed to the next splitting station by the lower pushing mechanism, the lower pushing mechanism comprises a pushing platform and a pushing block, the paperboard falls on the pushing platform, then the paperboard cross bar is pushed to the splitting station by the two pushing blocks, and the pushing block can ensure that the paperboard enters the splitting station in a positive position. However, the width of the cardboard horizontal bar is different along with the needs of customers, when the cardboard horizontal bar with different widths needs to be cut by the same splitting machine, the position of the whole upper conveying mechanism needs to be adjusted, the front end of the upper conveying mechanism and the front end of the lower pushing mechanism form a proper distance for placing the cardboard, the upper conveying mechanism is large in size, and the adjustment is very inconvenient.

Therefore, the invention provides the conveying device C of the paperboard splitting machine, which is convenient to adjust to adapt to different paperboard splitting. As shown in fig. 5, the conveying device C includes an upper conveying mechanism C1 and a lower pushing mechanism C2, the upper conveying mechanism C1 is located above the lower pushing mechanism C2, the upper conveying mechanism C1 is a common belt conveying mechanism, the lower pushing mechanism C2 includes a pushing platform C20 and a pushing block C21, a front paper board limiting member C22 is disposed above the pushing platform C20, and a space for passing one paper board is provided between the front paper board limiting member C22 and the pushing platform C20; the paper boards fall onto the pushing platform C20 from the upper conveying mechanism C1 and are stacked, then the front paper board limiting piece C22 is used for stopping the front of the paper board stack, and the pushing block C21 pushes out the lowest paper board because the distance between the front paper board limiting piece C22 and the pushing platform C20 is used for allowing one paper board to pass through. In order to solve the problems in the prior art, an adjusting conveying mechanism C3 (which is a common belt conveying mechanism) capable of adjusting forward and backward movement is arranged between the upper conveying mechanism C1 and the lower pushing mechanism C2. When the transverse strips of the paperboards with wider widths need to be cut, the adjusting and conveying mechanism C3 is moved backwards, so that the distance between the front end of the adjusting and conveying mechanism C3 and the front paperboard limiting piece C22 is widened; when the transverse strips of the paper boards with narrower width need to be cut, the adjusting and conveying mechanism C3 is moved forward, so that the distance between the front end of the adjusting and conveying mechanism C3 and the front paper board limiting piece C22 is narrowed. Through the flexible structure, the whole upper conveying mechanism C1 does not need to be adjusted, and only the small adjusting conveying mechanism C3 needs to be adjusted, so that the structure is very convenient.

The adjusting and conveying mechanism C3 can be mounted on the upper conveying mechanism C1, or a bracket is separately arranged for mounting, however, for convenience of mounting, the invention is provided with guide rails C30 at two sides of the pushing platform C20, and the adjusting and conveying mechanism C3 is slidably arranged on the guide rails C30 through sliders C31. The adjustment of the transport mechanism C3 is facilitated by the movement of the slider C31 on the guide C30.

In order to prevent the pushing block C21 from driving the upper paper board to move back when moving back (friction force exists between the pushing block C21 and the upper paper board), the rear paper board limiting piece C233 is arranged above the pushing platform C20, and a space for one paper board to pass through is formed between the rear paper board limiting piece C23 and the pushing platform C20. After the paper board comes down from the adjusting and conveying mechanism C3, the paper board falls between the rear paper board limiting piece C23 and the front paper board limiting piece C22. The front cardboard limiting piece C22 can allow the lowest cardboard to pass through, and the rear cardboard limiting piece C23 can limit the pushing block C21 from moving back to drive the upper cardboard to move back.

Since the pushing block C21 must push the cardboard into the second slitting mechanism B in a very positive direction, the pushing surface of the pushing block C21 must ensure parallelism with the roller surface of the slitting roller 2, and in order to adjust the parallelism of the pushing block C21 and the slitting roller 2, as shown in FIG. 6, the pushing block C21 is mounted on an adjusting seat C24, an adjusting seat C24 is connected to a connecting seat C25 through an adjusting shaft C240, in addition, the adjusting seat C24 is provided with an angle adjusting elongated slot C241, an angle adjusting bolt is arranged in the angle adjusting elongated slot C241, and the angle adjusting bolt is in threaded connection with the connecting seat C25. When the angle of the pushing block C21 needs to be adjusted, the adjusting seat C24 rotates around the adjusting shaft C240, and after the position is adjusted, the angle adjusting bolt is screwed. Connecting seat C25 is driven by pushing power source to move.

Similarly, in order to adjust the height of the pusher block C21 to meet different thicknesses of paperboards, the adjusting seat C24 of the invention is provided with a groove C242, the pusher block C21 is arranged in the groove C242 in a matching way, the pusher block C21 is provided with a through hole C210, a height adjusting bolt is arranged in the through hole C210 in a penetrating way, the height adjusting bolt is connected to the adjusting seat C24 in a threaded way, and a spring is arranged between the pusher block C21 and the adjusting seat C24. When the height of the pushing block C21 needs to be adjusted, the height adjusting bolt is rotated, and the pushing block C21 is limited at a set height through the elasticity of the spring and the limit of the height adjusting bolt nut.

As above, cut and have feed inlet and discharge gate between the roller 2 and the nipper belt 5 of cutting mechanism, the cardboard just goes into from the feed inlet, and along with the rotation of slitting roller 2, nipper belt 5 is rolling over with slitting roller 2 and is pressing the cardboard, divides simultaneously cutter 6 to cut the cardboard, and the cardboard comes out from the discharge gate at last, accomplishes the cardboard from this and cuts. Because the guide roll 3 and the slitting roll 2 at the feed inlet need to keep a certain distance therebetween, paper boards can enter the feed inlet easily, so that the paper pressing belt at the feed inlet cannot press the paper boards, in order to enable the paper boards to stably enter from the feed inlet, a fixed shaft sleeve is generally fixedly installed on the guide roll at the feed inlet, and the paper boards enter the feed inlet under the pressure of the fixed shaft sleeve by keeping a proper distance between the fixed shaft sleeve and the slitting roll. However, after a long time of use and observation, it was found that there is a problem that is easily overlooked: because the fixed shaft sleeve is fixedly arranged on the guide roller (the angular velocity of the fixed shaft sleeve is the same with that of the guide roller), and the diameter of the fixed shaft sleeve is larger than that of the guide roller, the surface linear velocity of the fixed shaft sleeve is larger than that of the guide roller, and the linear velocity of the paper pressing belt and that of the slitting roller are the same with that of the guide roller, so that a speed difference exists between the conveying speed of the fixed shaft sleeve above the paper board and that of the slitting roller below the paper board, and as the paper board gradually enters from the feed inlet, the speed difference can enable the paper board to have friction among the slitting roller, the fixed shaft sleeve and the paper pressing belt, and the friction can enable the paper board to deviate, and the accuracy of paper board slitting is. In order to solve the prior technical problem, as shown in fig. 3, the guide roller 3 at the feed inlet is sleeved with a bearing 4 or movably sleeved with a rolling wheel. It should be noted here that, the bearing 4 may be directly installed on the guide roller 3, or a shaft sleeve may be installed on the guide roller 3 first, and then the bearing 4 is installed on the shaft sleeve; and the rolling wheel (ordinary pinch roller) can be installed on the guide roll through the bearing, can directly overlap on the guide roll, as long as let the rolling wheel can the rotation just. Of course, the mode of adopting the bearing, the structure is simpler, and the cost is lower, because frictional force is little, therefore the effect is also better.

Through the cover have bearing 4 or movable cover have the rolling wheel on guide roll 3, let bearing 4 or the rolling wheel of rotation press the cardboard to following the cardboard and rotating, only letting paper pressing belt 5 and cut roller 2 give the cardboard conveying force from this, and bearing 4 or the rolling wheel of rotation only press the cardboard, and can not give the cardboard conveying force, just so can guarantee that the cardboard can not take place the skew in data send process, thereby guarantee to cut the precision.

Finally, it is worth mentioning that a fulcrum 7 is provided at the front side of the guide roll 3 at the feed port, and as shown in fig. 3, a damping wheel 70 is provided on the fulcrum 7. The paper feeding mechanism pushes the paperboard to enter the paperboard cutting mechanism through the pushing block, and because the damping wheel 70 exists, the damping wheel 70 can supply a reverse acting force to the paperboard, the reverse acting force can drive the paperboard to move towards the direction of the pushing block, so that the edge of the paperboard and the pushing face of the pushing block are always kept on the same face, the paperboard can enter the paperboard cutting mechanism along a straight line, the cutting precision of the paperboard is higher, and the cutting quality is better.

Claims

1. Two-way cardboard cutting machine, including two cutting mechanisms (A, B), its characterized in that: cut mechanism including frame (1) and install branch cutter (6) on frame (1), cut roller (2) and a plurality of guide roll (3), divide cutter (6) to install the rear side at branch cutter roller (2), paste soft contact layer on the roll surface of branch cutter roller (2), the knife tip of branch cutter (6) contacts with soft contact layer, divide cutter roller (2) and drive to divide cutter roller (2) pivoted to cut the power supply transmission and be connected, around having pressure paper belt (5) on a plurality of guide roll (3), pressure paper belt (5) are used in on dividing cutter roller (2), pressure paper belt (5) and divide and have feed inlet and discharge gate between cutter roller (2), the discharge gate of first cutting mechanism (A) is located the top, the feed inlet of second cutting mechanism (B) is located the top, and the discharge gate of first cutting mechanism (A) and the second are cut and are realized carrying through conveyor (C) between the feed inlet of mechanism (B) through conveyor (C) and are cut to cut the discharge gate of mechanism (A) The first splitting mechanism (A) is vertical to the conveying direction of the conveying device (C), and the second splitting mechanism (B) is in the same feeding direction as the conveying direction of the conveying device (C).

2. The bi-directional cardboard slitting machine according to claim 1, characterized in that: the guide roller (3) at the feed inlet is sleeved with a bearing (4) or is movably sleeved with a rolling wheel.

3. The bi-directional cardboard slitting machine according to claim 2, characterized in that: a support shaft (7) is arranged on the front side of the guide roller (3) at the feed inlet, and a damping wheel (70) is arranged on the support shaft (7).

4. The bi-directional cardboard splitting machine according to claim 1 or 2, characterized in that: conveyor (C) is including last conveying mechanism (C1) and lower pushing equipment (C2), it is located pushing equipment (C2) top down to go up conveying mechanism (C1), pushing equipment (C2) is including pushing away material platform (C20) and ejector pad (C21) down, the top of pushing away material platform (C20) is equipped with preceding cardboard locating part (C22), have the interval that lets a cardboard pass through between preceding cardboard locating part (C22) and the pushing away material platform (C20), it can back-and-forth movement adjustment's regulation conveying mechanism (C3) to go up to be equipped with between conveying mechanism (C1) and the lower pushing equipment (C2).

5. The bi-directional cardboard slitting machine according to claim 4, characterized in that: guide rails (C30) are arranged on two sides of the material pushing platform (C20), and the adjusting and conveying mechanism (C3) is arranged on the guide rails (C30) in a sliding mode through sliding blocks (C31).

6. The bi-directional cardboard slitting machine according to claim 5, characterized in that: a rear paper board limiting piece (C23) is arranged above the pushing platform (C20), and a space for one paper board to pass through is formed between the rear paper board limiting piece (C23) and the pushing platform (C20).

7. The bi-directional cardboard slitting machine according to claim 4, characterized in that: the material pushing block (C21) is installed on an adjusting seat (C24), the adjusting seat (C24) is connected to the connecting seat (C24) through an adjusting shaft (240), the adjusting seat (C24) is provided with an angle adjusting long groove (C241), an angle adjusting bolt is arranged in the angle adjusting long groove (C241), and the angle adjusting bolt is in threaded connection with the connecting seat (C25).

8. The bi-directional cardboard slitting machine according to claim 7, characterized in that: the adjusting seat is provided with a groove (C242), the pushing block (C21) is arranged in the groove (C242) in a matched mode, the pushing block (C21) is provided with a through hole (C210), a height adjusting bolt penetrates through the through hole (C210), the height adjusting bolt is in threaded connection with the adjusting seat (C24), and a spring is arranged between the pushing block (C21) and the adjusting seat (C24).

9. The bi-directional cardboard slitting machine according to claim 1, characterized in that: the machine base (1) is provided with a guide rod (8) parallel to the axis of the slitting roller (2), the guide rod (8) is sleeved with an adhesive tape roll seat (80) in a sliding manner, and an adhesive tape roll (81) is rotatably arranged on the adhesive tape roll seat (80).

10. The bi-directional cardboard slitting machine according to claim 1, characterized in that: the soft contact layer is an adhesive tape.