CN109319240B - Roll cutting device for straw packaging film - Google Patents
Roll cutting device for straw packaging film Download PDFInfo
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- CN109319240B CN109319240B CN201811290621.2A CN201811290621A CN109319240B CN 109319240 B CN109319240 B CN 109319240B CN 201811290621 A CN201811290621 A CN 201811290621A CN 109319240 B CN109319240 B CN 109319240B
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- roller
- cutter
- feeding roller
- packaging film
- cutting device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
- B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
- B65B61/08—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting using rotary cutters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
The invention relates to a roll cutting device for a straw packaging film. The roll cutting device of the straw packaging film comprises: a support frame; the feeding roller is rotatably connected with the support frame; the circumferential surface of the feeding roller is provided with a plurality of accommodating parts, and each accommodating part is used for accommodating one suction pipe; the cutter roller is rotatably connected with the support frame and is positioned above the feeding roller; the peripheral side surface of the cutter roller is provided with a plurality of cutters which are distributed at intervals along the circumferential direction of the cutter roller; in the synchronous rotation process of the feeding roller and the cutter roller, the cutter is used for cutting off the packaging film between two adjacent accommodating parts; the driving piece is fixedly connected to the supporting frame and is in transmission connection with the feeding roller and the cutter roller so as to drive the feeding roller and the cutter roller to synchronously rotate. The roll cutting device can realize automatic feeding, cutting and discharging of the packaging film, so that the individually packaged straw is obtained. The suction pipe is accommodated in the accommodating part, effectively prevented from being cut off by the cutter, high in yield and high in production efficiency.
Description
Technical Field
The invention relates to the field of packaging mechanical equipment, in particular to a roll cutting device of a straw packaging die.
Background
The straw, or drinking tube, is a cylindrical, hollow plastic product which is used mainly for drinking the beverage in the cup. With the development of economy, the sanitary requirements of people on food are higher and higher, and independently packaged straws are also popular with people.
In practical production, in order to adapt to the straw packaging operation of an automatic production line, the packaging films of two adjacent straws are designed to be continuous. Therefore, a cutting process is required to be designed in the packaging operation process for cutting the packaging film between the two straws to obtain the straws which are independently packaged.
In general, in the cutting step, a continuous packaging film having straws packaged therein is continuously fed on a line, and the packaging film is periodically punched by a cutter to obtain straws packaged individually. However, since the packaging film is relatively soft, stacking of the packaging film is easy to occur in the continuous feeding process, and the cutting action of the cutting knife is not matched with the feeding of the packaging film, so that the straw is cut off, the production progress is affected, and the yield is low.
Disclosure of Invention
Accordingly, it is necessary to provide a roll cutting device for a packaging film for straws, which is capable of improving the above-mentioned drawbacks, in order to solve the problems that the conventional art is prone to cutting straws due to mismatch between punching operation of a cutter and feeding of the packaging film, and the production progress is affected, and the yield is low.
A roll cutting device of a straw packaging film for cutting a packaging film between two adjacent straws, the roll cutting device comprising:
a support frame;
the feeding roller is rotatably connected with the supporting frame around the axis of the feeding roller; the circumferential surface of the feeding roller is provided with a plurality of accommodating parts, the accommodating parts are arranged at intervals along the circumferential direction of the feeding roller, and each accommodating part is used for accommodating one suction pipe;
the cutter roller is rotatably connected with the support frame around the axis of the cutter roller and is positioned above the feeding roller; the peripheral side surface of the cutter roller is provided with a plurality of cutters which are distributed at intervals along the circumferential direction of the cutter roller; in the synchronous rotation process of the feeding roller and the cutter roller, the cutter is used for cutting off the packaging film between two adjacent accommodating parts;
the driving piece is fixedly connected to the supporting frame, and is in transmission connection with the feeding roller and the cutter roller so as to drive the feeding roller and the cutter roller to synchronously rotate.
In the roll cutting device for the straw packaging film, when the actual cutting operation is performed, firstly, the straw at one end of the packaging film is accommodated in an accommodating part at the feeding side of the feeding roller. Then, the feeding roller and the cutter roller synchronously rotate under the drive of the driving piece, and the packaging film is continuously fed between the feeding roller and the cutter roller along with the rotation of the feeding roller, so that the packaging film is cut off by the cutter of the cutter roller to form individually packaged straws. The individually packaged straws are then fed into the receiving section to a discharge side of the feed roller opposite the feed side, following the rotation of the feed roller. Finally, under the action of gravity, the individually packaged suction pipes automatically fall off, so that discharging is realized.
Therefore, the roller cutting device for the straw packaging film can realize automatic feeding, cutting and discharging of the packaging film, so that the straw which is packaged independently is obtained. And moreover, the suction pipe is accommodated in the accommodating part, so that the suction pipe is effectively prevented from being cut off by the cutter, the yield is high, and the production efficiency is high.
In one embodiment, the roll cutting device further comprises two sliders, each slider is slidably connected to the support frame in a vertical direction, and the cutter roll is rotatably connected between the two sliders about an axis thereof. Therefore, the cutter roller can follow the sliding of the sliding block in the vertical direction to adjust the position of the cutter roller in the vertical direction, so that no gap exists between the cutter and the feeding roller all the time, and the packaging film can be cut off. Therefore, the situation that the packaging film cannot be cut off due to overlarge gap between the cutter and the feeding roller caused by abrasion of the cutter is avoided.
In one embodiment, the roll cutting device further comprises pressing rods corresponding to the sliding blocks one by one, each pressing rod is movably connected to the supporting frame in the vertical direction, and one end of each pressing rod presses against one side, away from the feeding roller, of the corresponding sliding block, so that the cutter roller abuts against the feeding roller. Therefore, the cutter of the cutter roller is ensured to cut off the packaging film on the feeding roller.
In one embodiment, the roll cutting device further comprises an elastic block, and the elastic block is arranged between the sliding block and the pressing rod. Therefore, the pressing rod presses against the elastic piece, and the elastic piece applies a pretightening force to the sliding block downwards along the vertical direction, so that the cutter roller and the feeding roller keep against each other, and the cutter of the cutter roller can cut off the packaging film on the feeding roller. On the other hand, the elastic piece has a certain buffer effect on the force born by the cutter, so that the cutter is prevented from bearing a larger force instantly, and the service life of the cutter is prolonged.
In one embodiment, the support frame comprises two side plates which are oppositely arranged, and a cover plate fixedly connected to the tops of the two side plates;
the feeding roller is rotatably connected between the two side plates around the axis of the feeding roller; the sliding blocks are in one-to-one correspondence with the side plates, and each sliding block is slidably connected with a corresponding side plate along the vertical direction; the pressing rod is movably connected with the cover plate along the vertical direction. Therefore, the support frame is designed into the form of the two side plates and the cover plate, so that the roll cutting device is compact in overall structure and good in strength.
In one embodiment, the pressing rod is provided with external threads, the cover plate is provided with a threaded hole for the pressing rod to penetrate, and the external threads of the pressing rod are in threaded engagement with the internal threads of the threaded hole.
In one embodiment, each side plate is provided with a guide groove extending along the vertical direction, and the sliding block is in sliding fit with the guide groove so as to be slidable along the guide groove.
In one embodiment, the roll cutting device further comprises a transmission assembly, wherein the transmission assembly comprises a driving gear, a first driven gear and a second driven gear;
the driving gear is connected with the output shaft of the driving piece so as to be driven by the output shaft of the driving piece to rotate; the first driven gear is connected with the feeding roller so as to rotate synchronously with the feeding roller; the second driven gear is connected with the cutter roller so as to rotate synchronously with the cutter roller;
the first driven gear is meshed with the second driven gear; the driving gear is meshed with the first driven gear or the second driven gear.
In one embodiment, the accommodating portion is a groove formed by recessing the circumferential side surface of the feeding roller.
In one embodiment, the roll cutting device further comprises a material pressing rod fixedly connected to the supporting frame, wherein the material pressing rod is located on the feeding side of the feeding roll and has a gap smaller than the diameter of the suction pipe with the peripheral side surface of the feeding roll. Thus, in the rotation process of the feeding roller, the suction pipe at the feeding side of the feeding roller enters the accommodating part under the pressing of the pressing rod.
Drawings
FIG. 1 is a schematic perspective view of a roll cutting device for packaging films of straws according to an embodiment of the invention;
FIG. 2 is a schematic perspective view of another view of the roll-cutting apparatus for straw packaging film shown in FIG. 1;
fig. 3 is a side view of the roll cutting device of the straw packaging film shown in fig. 1.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In practical production, in order to adapt to the straw packaging operation of an automatic production line, the packaging films of two adjacent straws are designed to be continuous. Therefore, after the straws are packaged, a cutting process is required to cut the packaging film between the straws to obtain individually packaged straws.
However, in the prior art, the phenomenon that the punching action of the cutting knife is not matched with the feeding of the packaging film easily occurs, so that the cutting knife cuts off the suction pipe, thereby influencing the production progress and having low yield. Therefore, it is necessary to provide a roll cutting device for a straw packaging film which avoids cutting the straw.
Fig. 1 is a schematic perspective view of a roll cutting device for a packaging film of a straw in an embodiment of the invention. Fig. 2 is a perspective view schematically illustrating another view of the roll-cutting device for the straw packaging film shown in fig. 1. Fig. 3 is a side view of the roll cutting device of the straw packaging film shown in fig. 1.
As shown in fig. 1, a roll cutting device for a packaging film of straws is provided in an embodiment of the present invention, which is used for cutting the packaging film between two adjacent straws to obtain individually packaged straws. The roll cutting device of the straw packaging film comprises a supporting frame 10, a feeding roller 20, a cutter roller 30 and a driving piece 40.
The feed roller 20 is rotatably connected to the support frame 10 about its axis. The feed roller 20 has a plurality of receiving portions 22 on its peripheral side surface. The plurality of receiving portions 22 are arranged at intervals along the circumferential direction of the feed roller 20. Each accommodating portion 22 is configured to accommodate one straw, so that two adjacent straws are accommodated in two adjacent accommodating portions 22 respectively, and the packaging film between the two adjacent straws is located between the two adjacent accommodating portions 22.
The cutter roll 30 is rotatably connected to the support frame 10 about its axis and is located above the feed roll 20. The peripheral side surface of the cutter roller 30 has a plurality of cutters 32, and the plurality of cutters 32 are arranged at intervals along the circumferential direction of the cutter roller 30. During the synchronous rotation of the feed roller 20 and the cutter roller 30, the cutter 32 is used to cut the packaging film between two adjacent accommodating portions 22.
The driving member 40 is fixedly connected to the supporting frame 10 and is in transmission connection with the feeding roller 20 and the cutter roller 30 to drive the feeding roller 20 and the cutter roller 30 to rotate synchronously.
In the roll cutting device for the straw packaging film, at the time of the actual cutting operation, first, the straw at one end of the packaging film is accommodated in an accommodating portion 22 on the feeding side of the feed roller 20. Then, the feeding roller 20 and the cutter roller 30 are rotated in synchronization with each other by the driving member 40, and the packaging film is continuously fed between the feeding roller 20 and the cutter roller 30 following the rotation of the feeding roller 20, thereby being cut by the cutter 32 of the cutter roller 30 to form individually packaged straws. The individually packaged straws then continue to be fed to the discharge side of the feed roller 20, opposite the feed side, following the rotation of the feed roller 20 within the receptacle 22. Finally, under the action of gravity, the individually packaged suction pipes automatically fall off, so that discharging is realized.
Therefore, the roller cutting device for the straw packaging film can realize automatic feeding, cutting and discharging of the packaging film, so that the straw which is packaged independently is obtained. And, the straw is accommodated in the accommodating part 22, effectively avoided being cut off by the cutter 32, the yield is high, and production efficiency is high.
It should be noted that, the spacing between two adjacent receiving portions 22 is substantially equal to or slightly smaller than the spacing between two adjacent suction pipes. In this way, each straw can be continuously accommodated in each accommodating part 22 during the rotation of the feeding roller 20. Since the interval between the adjacent suction pipes is not changed, the plurality of accommodating portions 22 are arranged at equal intervals along the circumferential direction of the feed roller 20.
In particular, in the embodiment, the axis of the cutter roller 30 is parallel to the axis of the feed roller 20, so as to ensure that the packaging film between two adjacent straws (i.e., between two adjacent accommodating portions 22) is continuously cut during the synchronous rotation of the cutter roller 30 and the feed roller 20.
In the embodiment of the invention, the roll cutting device of the straw packaging film further comprises a transmission assembly 50, wherein the transmission assembly 50 comprises a driving gear 52, a first driven gear 54 and a second driven gear 56.
The driving gear 52 is connected to the output shaft of the driving member 40 to be rotated by the output shaft of the driving member 40. The first driven gear 54 is connected to the feed roller 20 to rotate in synchronization with the feed roller 20. The second driven gear 56 is connected to the cutter roller 30 to rotate in synchronization with the cutter roller 30.
The first driven gear 54 is meshed with the second driven gear 56. The driving gear 52 is meshed with either the first driven gear 54 or the second driven gear 56.
In this way, the driving member 40 drives the feed roller 20 and the cutter roller 30 to synchronously rotate through the transmission assembly 50. Alternatively, the driving gear 52, the first driven gear 54 and the second driven gear 56 may be cylindrical gears. Mainly subjected to radial loads during operation. The cylindrical gear has the advantages of stable transmission ratio, reliable work, high efficiency, long service life and the like, so that the working stability of the roll cutting device is further optimized.
It will be appreciated that the transmission ratio of the transmission assembly 50, and the diameters of the feed roller 20 and the cutter roller 30, need to be designed according to practical situations, so as to ensure that the position between two adjacent accommodating portions 22 of the feed roller 20 is always kept in contact with the cutter 32 of the cutter roller 30 during the synchronous rotation of the feed roller 20 and the cutter roller 30, so as to cut the packaging film between the two adjacent accommodating portions 22.
In particular embodiments, the driving member 40 may be a motor. In order to ensure the constant output speed of the motor, a servo motor can be selected and provided with a servo driver. The servo drive is fixedly connected to the support frame 10.
In an embodiment of the present invention, the cutters 32 of the cutter roll 30 extend along the axis of the cutter roll 30. The cutter 32 has a triangular cross section.
The receiving portion 22 of the feed roller 20 extends along the axis of the feed roller 20. The length dimension of the accommodating portion 22 in the axial direction of the feed roller 20 is greater than or equal to the width dimension of the packaging film so that the suction pipe can be accommodated in the accommodating portion 22. The length dimension of the cutter 32 in the axial direction of the cutter roller 30 is greater than or equal to the length dimension of the accommodating portion 22 in the axial direction of the feed roller 20, so that the cutter 32 can cut the packaging film.
In the embodiment of the present invention, the accommodating portion 22 is a groove formed by recessing the peripheral side surface of the feed roller 20. Thus, two adjacent suction pipes are accommodated in two adjacent grooves. When the feeding roller 20 and the cutter roller 30 rotate synchronously, the cutter 32 of the cutter roller 30 can cut off the packaging film between the two adjacent grooves to form the individually packaged straw.
In some embodiments, the bottom of the groove is further provided with an air exhaust channel 220, and the air exhaust channel 220 extends from the bottom of the groove to an end face of the feeding roller 20. Therefore, the packaging film is prevented from being respectively grooved and negative pressure is formed after the suction pipe is accommodated in the groove, and the suction pipe cannot automatically fall off after the packaging film is cut off.
In particular embodiments, the exhaust passage 220 includes radial holes (not shown) and axial holes (not shown). The radial hole extends from the bottom of the groove in the radial direction of the feed roller 20, and the axial hole extends from one end of the feed roller 20 along the axis of the feed roller 20 and communicates with the radial hole. Thus, the exhaust passage 220 is formed by the radial holes and the axial holes, and the processing is simple, reducing the cost. It will be appreciated that the radial bores may comprise a plurality of radial bores spaced longitudinally along the recess and each communicating with an axial bore.
In an embodiment of the present invention, the feed roller 20 has first mounting shafts 34 at opposite ends. The axis of the first mounting shaft 34 is collinear with the axis of the feed roller 20. The first mounting shaft 34 is rotatably coupled to the support frame 10 by bearings. It will be appreciated that the first mounting shaft 34 may be fixedly attached to opposite ends of the feed roller 20. In other embodiments, the first mounting shaft 34 can be integrally formed with the feed roller 20 to form a stepped shaft.
In particular, in the embodiment, since the feeding roller 20 is mainly subjected to radial load when the roll cutting device is actually operated, the first mounting shaft 34 may be mounted on the support frame 10 by using a deep groove ball bearing.
In particular embodiments, the first driven gear 54 may be fixedly coupled to an end face of the feed roller 20 by a threaded fastener. The threaded fastener may be a bolt, screw, or the like. In this way, the first driven gear 54 is easily attached and detached. It should be noted that, in other embodiments, the first driven gear 54 may also be sleeved on a first mounting shaft 34 to rotate synchronously with the first mounting shaft 34.
In an embodiment of the present invention, the opposite ends of the cutter roller 30 have second mounting shafts (not shown). The axis of the second mounting shaft is collinear with the axis of the cutter roller 30. The second mounting shaft is rotatably connected to the support frame 10 by means of bearings. It will be appreciated that the second mounting shaft may be fixedly attached to the end of the cutter roller 30. In other embodiments, the second mounting shaft may be integrally formed with the feed roller 20 to form a stepped shaft.
In particular, in the embodiment, since the cutter roller 30 is mainly subjected to radial load when the roll cutting device is actually operated, the second mounting shaft may be optionally mounted to the support frame 10 through a deep groove ball bearing.
In particular embodiments, the second driven gear 56 may be fixedly attached to an end face of the cutter roller 30 by a threaded fastener. The threaded fastener may be a bolt, screw, or the like. In this way, the second driven gear 56 is easily attached and detached. It should be noted that, in other embodiments, the second driven gear 56 may also be sleeved on a second mounting shaft to rotate synchronously with the second mounting shaft.
Referring to fig. 2 and 3, in the embodiment of the invention, the roll cutting device of the straw packaging film further comprises two sliding blocks 60, each sliding block 60 is slidably connected to the supporting frame 10 along the vertical direction, and the cutter roller 30 is rotatably connected between the two sliding blocks 60 around the axis thereof. In this way, the cutter roller 30 can adjust the position of the cutter roller 30 in the vertical direction following the sliding of the slider 60 in the vertical direction, so that no gap between the cutter 32 and the feed roller 20 is always maintained, and the packaging film can be cut off. Therefore, it is avoided that the gap between the cutter 32 and the feed roller 20 is too large to cut the packaging film due to the abrasion of the cutter 32.
In particular to the embodiment, the second mounting shaft is rotatably connected to the corresponding slider 60 by means of bearings, so that the indirect mounting of the cutter roller 30 to the support frame 10 by means of the slider 60 is achieved.
In some embodiments, the roll cutting device of the straw packaging film further includes pressing rods 70 corresponding to the sliding blocks 60 one by one, each pressing rod 70 is movably connected to the supporting frame 10 along the vertical direction, and one end of the pressing rod 70 presses against one side of the corresponding sliding block 60 away from the feeding roller 20, so that the cutter roller 30 abuts against the feeding roller 20. In this way, the cutter blade 32 of the cutter roller 30 is ensured to be able to cut the packaging film on the feed roller 20.
In particular, in the embodiment, the roll cutting device of the straw packaging film further comprises an elastic member 80, and the elastic member 80 is disposed between the slider 60 and the pressing rod 70. In this way, the pressing rod 70 presses against the elastic member 80, and the elastic member 80 applies a pre-tightening force to the slider 60 downward along the vertical direction, so that the cutter roller 30 abuts against the feeding roller 20, and the cutter 32 of the cutter roller 30 is ensured to cut off the packaging film on the feeding roller 20. On the other hand, the elastic member 80 has a certain buffering function on the force borne by the cutter 32, so that the cutter 32 is prevented from bearing a larger force instantaneously, and the service life of the cutter 32 is prolonged. Alternatively, the elastic member 80 is a PU (polyurethane) pad.
In the embodiment of the present invention, the support frame 10 includes two opposite side plates 12 and a cover plate 14 fixedly connected to the top of the two side plates 12. The two side plates 12 and the cover plate 14 form a portal shaped support frame 10. The feed roller 20 is rotatably connected between the side plates 12 about its axis. The sliders 60 are in one-to-one correspondence with the side plates 12, and each slider 60 is slidably connected to the corresponding side plate 12 in the vertical direction. The pressing lever 70 is movably connected to the cover plate 14 in the vertical direction. In this way, the support frame 10 is designed into the form of the two side plates 12 and the cover plate 14, so that the roll cutting device has compact overall structure and better strength. Optionally, the cover plate 14 is fixedly attached to the top of the side plates 12 by threaded fasteners. The threaded fastener may be a bolt, screw, or the like.
In particular, in the embodiment, the pressing rod 70 has an external thread, and the cover plate 14 has a threaded hole through which the pressing rod 70 passes, and the external thread of the pressing rod 70 is screwed with the internal thread of the threaded hole. In this way, the pressing rod 70 can be moved in the vertical direction by rotating the pressing rod 70, so as to adjust the pressing force applied by the pressing rod 70 to the slider 60, so as to ensure that the cutter 32 can cut off the packaging film. Alternatively, the abutment lever 70 is a screw. In particular to the embodiment shown, the end of the abutment bar 70 remote from the slide 60 has a handle 72 to facilitate adjustment of the cutter roller 30 by screwing the abutment bar 70. Alternatively, the external threads of the abutment lever 70 may be trapezoidal threads, so that the abutment lever 70 can withstand large axial loads.
In some embodiments, each side plate 12 has a guide slot 120 extending in a vertical direction, and the slider 60 is slidably fitted in the guide slot 120 so as to be slidable along the guide slot 120.
With continued reference to fig. 2 and 3, in an embodiment, a guide rail 122 extending in a vertical direction is protruding from a side wall of the guide groove 120, and the slider 60 is provided with a guide groove (not shown) extending in a vertical direction, and the guide groove is slidably engaged with the guide rail 122, so that the slider 60 is slidable in a vertical direction. It is understood that the guide rail 122 may be provided on the slider 60, and the guide groove is provided on the side wall of the guide groove 120.
In particular, in one embodiment, the elastic member 80 may also be slidably fitted in the guide groove 120 to be slidable along the guide groove 120. Thus, on one hand, the elastic member 80 is guided in a sliding manner in the vertical direction; on the other hand, the guide groove 120 plays a limiting role on the elastic member 80, preventing the elastic member 80 from sliding in the horizontal direction.
It should be noted that the above-mentioned vertical direction is not to be understood as being only a direction perpendicular to the horizontal plane, but is to be understood as all directions in which there may be a deviation of movement in the vertical direction, as long as it is possible to realize adjustment of the cutter roller 30 against the feed roller 20 by the movement of the slider 60, thereby ensuring that the cutter 32 is able to cut the packaging film.
In the embodiment of the present invention, the roll cutting device further includes a pressing rod 90 fixedly connected to the support frame 10, wherein the pressing rod 90 is located at the feeding side of the feeding roll 20, and has a gap smaller than the diameter of the suction tube with the peripheral surface of the feeding roll 20. Thus, during the rotation of the feed roller 20, the suction pipe on the feeding side of the feed roller 20 enters the accommodating portion 22 under the pressing of the nip bar 90.
In the embodiment, the material pressing rod 90 is fixedly connected between the two side plates 12. In this way, on one hand, the suction pipe is pressed into the corresponding accommodating part 22, and on the other hand, the strength of the supporting frame 10 is enhanced, and the stability of the roll cutting device is improved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (6)
1. The roll cutting device of straw packaging film for cut off the packaging film between two adjacent straws, its characterized in that, roll cutting device includes:
a support frame;
the feeding roller is rotatably connected with the supporting frame around the axis of the feeding roller; the circumferential surface of the feeding roller is provided with a plurality of accommodating parts, the accommodating parts are arranged at intervals along the circumferential direction of the feeding roller, and each accommodating part is used for accommodating one suction pipe;
the cutter roller is rotatably connected with the support frame around the axis of the cutter roller and is positioned above the feeding roller; the peripheral side surface of the cutter roller is provided with a plurality of cutters which are distributed at intervals along the circumferential direction of the cutter roller; in the synchronous rotation process of the feeding roller and the cutter roller, the cutter is used for cutting off the packaging film between two adjacent accommodating parts;
the driving piece is fixedly connected to the supporting frame, and is in transmission connection with the feeding roller and the cutter roller so as to drive the feeding roller and the cutter roller to synchronously rotate; the roll cutting device further comprises two sliding blocks, each sliding block is connected with the supporting frame in a sliding mode in the vertical direction, and the cutter roll is rotatably connected between the two sliding blocks around the axis of the cutter roll;
the roll cutting device further comprises pressing rods which are in one-to-one correspondence with the sliding blocks, each pressing rod is movably connected to the supporting frame in the vertical direction, and one end of each pressing rod presses against one side, away from the feeding roller, of the corresponding sliding block, so that the cutter roller is abutted against the feeding roller;
the roll cutting device further comprises an elastic block, and the elastic block is arranged between the sliding block and the pressing rod; the support frame comprises two side plates which are oppositely arranged, and a cover plate fixedly connected to the tops of the two side plates;
the feeding roller is rotatably connected between the two side plates around the axis of the feeding roller; the sliding blocks are in one-to-one correspondence with the side plates, and each sliding block is slidably connected with a corresponding side plate along the vertical direction; the pressing rod is movably connected with the cover plate along the vertical direction.
2. The roll cutting device of straw packaging film according to claim 1, wherein the pressing rod is provided with external threads, the cover plate is provided with a threaded hole for the pressing rod to penetrate, and the external threads of the pressing rod are in threaded engagement with the internal threads of the threaded hole.
3. The roll cutting apparatus of claim 1, wherein each of the side plates has a guide groove extending in a vertical direction, and the slider is slidably fitted in the guide groove so as to be slidable along the guide groove.
4. The roll cutting device of straw packaging film according to claim 1, further comprising a transmission assembly comprising a driving gear, a first driven gear and a second driven gear;
the driving gear is connected with the output shaft of the driving piece so as to be driven by the output shaft of the driving piece to rotate; the first driven gear is connected with the feeding roller so as to rotate synchronously with the feeding roller; the second driven gear is connected with the cutter roller so as to rotate synchronously with the cutter roller;
the first driven gear is meshed with the second driven gear; the driving gear is meshed with the first driven gear or the second driven gear.
5. The roll cutting device of straw packaging film according to claim 1, wherein the receiving portion is a groove formed by inward sinking of a peripheral side surface of the feed roll.
6. The roll cutting device of straw packaging film according to any one of claims 1 to 5, further comprising a pressing bar fixedly connected to the supporting frame, wherein the pressing bar is located at the feeding side of the feeding roller and has a gap smaller than the diameter of the straw with the circumferential side surface of the feeding roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811290621.2A CN109319240B (en) | 2018-10-31 | 2018-10-31 | Roll cutting device for straw packaging film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811290621.2A CN109319240B (en) | 2018-10-31 | 2018-10-31 | Roll cutting device for straw packaging film |
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| CN109319240A CN109319240A (en) | 2019-02-12 |
| CN109319240B true CN109319240B (en) | 2023-09-05 |
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| CN201811290621.2A Active CN109319240B (en) | 2018-10-31 | 2018-10-31 | Roll cutting device for straw packaging film |
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| CN115157349A (en) * | 2022-05-31 | 2022-10-11 | 宁波中科毕普拉斯新材料科技有限公司 | Roller shearing device capable of cleaning material edges and roller shearing method |
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| US2990081A (en) * | 1957-09-26 | 1961-06-27 | Minnesota Mining & Mfg | Application of tape to moving objects |
| GB1011722A (en) * | 1961-06-14 | 1965-12-01 | Molins Organisation Ltd | Improvements in or relating to the feeding of webs of material |
| ES280267A1 (en) * | 1961-09-11 | 1963-01-16 | Kisab Aktiebolaget | Improved sealing and severing device for packaging machines |
| JPH11124115A (en) * | 1997-10-22 | 1999-05-11 | Dainippon Seihon Shiko Kk | Packaging method and device for forming perforations in packaging film to be used therefor |
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|---|---|
| CN109319240A (en) | 2019-02-12 |
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