A slitting machine for paper strip processing

Abstract

The utility model discloses a kind of virtual cutting machines for paper tape processing, including opposite synchronous rotation's rubber-coated roller and virtual cutting roller, virtual cutting roller includes virtual cutting shaft, first virtual cutting knife, indentation knife and second virtual cutting knife;First virtual cutting knife, indentation knife, second virtual cutting knife are arranged at the outer periphery of virtual cutting shaft, and the width direction of first virtual cutting knife, indentation knife, second virtual cutting knife is set along virtual cutting shaft radial and length direction is set along the axial direction of virtual cutting shaft;The included angle of first virtual cutting knife and second virtual cutting knife is acute, and indentation knife is arranged at the outer periphery of virtual cutting shaft and located between first virtual cutting knife and second virtual cutting knife, and the distance between the pressure surface of indentation knife and virtual cutting shaft axis is greater than the distance between the tip of first virtual cutting knife and virtual cutting shaft axis.The utility model is pressed tightly on rubber-coated roller after cutting out first virtual cutting line, avoid first virtual cutting knife to be about to separate when second virtual cutting knife virtual cutting and drag raw material paper tape, guarantee the integrity of first virtual cutting line and second virtual cutting line.

Description

Technical Field

[0001] This utility model relates to the field of paper bag machine technology, and in particular to a paper tape cutting machine for paper tape processing. Background Technology

[0002] Existing paper bag machines encompass multiple processes, including feeding, handle forming, handle cutting, handle attaching, edge gluing, dummy cutting, paper bag forming, tearing, creasing, bottom opening, bottom gluing, bottom folding, and bag exit. Before the paper bag forming process, the raw paper strip needs to be dummy-cut according to the dimensions of a single paper bag; that is, two dummy lines are cut into the raw paper strip to facilitate subsequent paper bag forming and tearing operations. However, existing dummy-cutting equipment often pulls on the first dummy line when cutting the second dummy line, causing it to crack. This not only affects the tension of the conveyor rollers on the raw paper strip, causing poor conveying of the raw paper strip, but also affects paper bag forming and may even cause paper jams. Therefore, there is an urgent need to design a new type of dummy-cutting machine for paper strip processing. Utility Model Content

[0003] This invention provides a paper tape cutting machine to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A paper tape cutting machine includes a coating roller and a cutting roller that rotate synchronously in opposite directions. The cutting roller includes a cutting shaft, a first cutting blade, a creasing blade, and a second cutting blade. The first cutting blade, the creasing blade, and the second cutting blade are disposed on the outer periphery of the cutting shaft. The width direction of the first cutting blade, the creasing blade, and the second cutting blade are arranged radially along the cutting shaft, and the length direction is arranged axially along the cutting shaft. The included angle between the first cutting blade and the second cutting blade is an acute angle. The creasing blade is disposed on the outer periphery of the cutting shaft and located between the first cutting blade and the second cutting blade. The distance between the pressure surface of the creasing blade and the axis of the cutting shaft is greater than the distance between the tip of the first cutting blade and the axis of the cutting shaft.

[0005] Preferably, both the first and second virtual cutting blades include a blade body, a number of cutting teeth and a number of tooth grooves. The cutting teeth are fixed on the blade body and arranged along the length direction, and a tooth groove is provided between two adjacent cutting teeth to separate the two cutting teeth.

[0006] Preferably, the width of the tooth groove is less than half the width of the cutting tooth.

[0007] Preferably, the dummy cutting roller further includes a dummy cutting blade mounting assembly, wherein both the first dummy cutting blade and the second dummy cutting blade are mounted on the dummy cutting shaft via the dummy cutting blade mounting assembly; The virtual cutting blade mounting assembly includes: an arc-shaped mounting plate, a first pressure strip, and connecting screws. The arc-shaped mounting plate is fixed on the outer periphery of the virtual cutting shaft. The first pressure strip presses the blade of the first virtual cutting blade or the second virtual cutting blade against the side of the arc-shaped mounting plate. The first pressure strip and the arc-shaped mounting plate are detachably connected by connecting screws.

[0008] Preferably, the blade has a screw through hole through which the connecting screw passes.

[0009] Preferably, the arc-shaped mounting plate has screw through holes perpendicular to the side of the arc-shaped mounting plate, and the first pressure strip has a first threaded hole corresponding to the screw through holes.

[0010] Preferably, the arc-shaped mounting plate has a circumferential groove, and the outer circumference of the dummy-cut shaft has a second threaded hole. The fixing screw passes through the groove and is screwed into the second threaded hole, so that the arc-shaped mounting plate can be adjusted and fixed around the axis of the dummy-cut shaft.

[0011] Preferably, a second pressure strip is detachably connected to the side of the first pressure strip away from the arc-shaped mounting plate, and the second pressure strip and the first pressure strip clamp and fix the indentation knife.

[0012] Preferably, it also includes a virtual cutting roller drive device, which includes a motor and a transmission mechanism; the driven gear of the transmission mechanism is coaxially fixed on the virtual cutting shaft, the motor drives the driving gear of the transmission mechanism to rotate, and the driving gear drives the driven gear and the virtual cutting shaft to rotate synchronously.

[0013] Preferably, it also includes a detector for detecting the initial angular position of the virtual cutting shaft; the detector includes a mounting hoop detachably connected to the virtual cutting shaft, a detection plate fixed on the mounting hoop, and a detection sensor, and the detection sensor generates a signal when the detection plate rotates past the detection sensor with the virtual cutting shaft.

[0014] Beneficial effects: This application discloses a paper tape processing slitting machine that sets a creasing knife between a first slitting knife and a second slitting knife, with the creasing knife's pressure surface higher than the tip of the first slitting knife. After the first slitting knife cuts out the first slitting line, the pressure surface of the creasing knife is rotated to press the raw paper tape tightly onto the coating roller, preventing the second slitting knife from piercing and pulling the raw paper tape when the first slitting knife is about to detach, thus ensuring the integrity of the first and second slitting lines. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a paper tape cutting machine disclosed in this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a paper tape cutting machine disclosed in this utility model. Figure 2 ; Figure 3 This is a front view of a paper tape cutting machine disclosed in this utility model; Figure 4 for Figure 3 Sectional view of AA; Figure 5 for Figure 1 A magnified view of a section of section I; Figure 6 This is a schematic diagram of the structure of the first cutting blade of a paper tape processing cutting machine disclosed in this utility model; Figure 7 This is a schematic diagram of the creases and dummy lines of the raw paper tape in a dummy cutting machine for paper tape processing disclosed in this utility model.

[0017] In the diagram: 1. Doppler roller; 11. Doppler shaft; 12. First doppler cutter; 121. Blade body; 122. Blade teeth; 123. Tooth groove; 124. Screw through hole; 13. Indentation knife; 131. Pressure surface; 132. Second pressure bar; 14. Second doppler cutter; 151. Arc-shaped mounting plate; 1511. Screw through hole; 1512. Groove; 152. First pressure bar; 1521. First threaded hole; 21. Motor; 22. Drive gear; 23. Driven gear; 3. Detector; 31. Mounting clamp; 32. Detection plate; 33. Detection sensor; 41. Raw material paper strip; 42. First doppler cut line; 43. Paper strip; 44. Second doppler cut line. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] A slitting machine for paper tape processing, combined with Figures 1-7 As shown, the device includes a rubber-coated roller and a dummy-cut roller 1 that rotate synchronously in opposite directions. The dummy-cut roller 1 includes a dummy-cutting shaft 11, a first dummy-cutting blade 12, a creasing blade 13, and a second dummy-cutting blade 14. The first dummy-cutting blade 12, the creasing blade 13, and the second dummy-cutting blade 14 are located on the outer periphery of the dummy-cutting shaft 11. The width direction of the first dummy-cutting blade 12, the creasing blade 13, and the second dummy-cutting blade 14 is arranged radially along the dummy-cutting shaft 11, and the length direction is arranged axially along the dummy-cutting shaft 11. The included angle between the first dummy-cutting blade 12 and the second dummy-cutting blade 14 is an acute angle. The creasing blade 13 is located on the outer periphery of the dummy-cutting shaft 11 and between the first dummy-cutting blade 12 and the second dummy-cutting blade 14. The distance between the pressure surface 131 of the creasing blade 13 and the axis of the dummy-cutting shaft 11 is greater than the distance between the tip of the first dummy-cutting blade 12 and the axis of the dummy-cutting shaft 11. This application provides an indentation tool 13 between the first dummy cutting tool 12 and the second dummy cutting tool 14, such that the pressure surface 131 of the indentation tool 13 is higher than the tip of the first dummy cutting tool 12. When rotated counterclockwise (e.g.) Figure 4As shown in the diagram, the tip of the first dummy cutter 12 first contacts and pierces the raw paper strip, which rests against the outer circumference of the coating roller, which provides support for the raw paper strip. The tip of the first dummy cutter 12 pierces the raw paper strip and embeds itself in the adhesive surface of the outer circumference of the coating roller. The coating roller, in conjunction with the first dummy cutter 12, dummy cuts the first dummy line on the raw paper strip. After the first dummy cutter 12 dummy cuts the first dummy line, the pressure surface 13 of the rotating indentation cutter 13 abuts against the raw paper strip and presses it firmly onto the coating roller. At this point, the tip of the first dummy cutter 12 has not yet finished cutting the first dummy line. When fully disengaged, the tip of the second dummy cutter 14 abuts against the raw paper strip and is about to pierce it, securing it to the coating roller to create a second dummy cut line. Since the creasing knife 13 is pressing firmly against the raw paper strip at this time, the pulling force from the tip of the second dummy cutter 14 piercing the raw paper strip will not act on the first dummy cut line, and the first dummy cut line will not be damaged under the pulling force and the action of the tip of the first dummy cutter 12. Subsequently, as the first dummy cutter 12 rotates, the tip of the first dummy cutter 12 completely disengages, the creasing knife 13 disengages, and the tip of the second dummy cutter 14 completely disengages. In summary, this application avoids the second dummy cutter 14 piercing the raw paper strip and pulling it when the first dummy cutter 12 is about to disengage, ensuring the integrity of the first and second dummy cut lines. This, in turn, will not affect the pulling force of the conveyor roller on the raw paper strip during subsequent paper bag forming, ensuring smooth conveying and reliable forming of the raw paper strip.

[0020] Preferably, both the first dummy cutter 12 and the second dummy cutter 14 include a blade body 121, a plurality of cutting teeth 122, and a plurality of tooth grooves 123. The cutting teeth 122 are fixed on the blade body 121 and arranged along the length direction, and a tooth groove 123 is provided between two adjacent cutting teeth 122 to separate the two cutting teeth 122. The cutting teeth 122 are used to pierce the raw material paper tape, and the tooth grooves 123 prevent direct cutting to form a dummy cutting line.

[0021] Preferably, the width of the tooth groove 123 is less than half the width of the blade tooth 122, so that the raw material paper tape retains a very small connection, which facilitates subsequent tearing.

[0022] Preferably, the virtual cutting roller 1 further includes a virtual cutting blade mounting assembly, wherein the first virtual cutting blade 12 and the second virtual cutting blade 14 are both mounted on the virtual cutting shaft 11 via the virtual cutting blade mounting assembly; The virtual cutting blade mounting assembly includes: an arc-shaped mounting plate 151, a first pressure strip 152, and connecting screws. The arc-shaped mounting plate 151 is fixed on the outer periphery of the virtual cutting shaft 11. The first pressure strip 152 presses the blade body 121 of the first virtual cutting blade 12 or the second virtual cutting blade 14 against the side of the arc-shaped mounting plate 151. The first pressure strip 152 and the arc-shaped mounting plate 151 are detachably connected by connecting screws.

[0023] The arc-shaped mounting plate 151 can prevent the dummy cutting shaft 11 from being machined into an irregular shape. The first dummy cutting blade 12 and the second dummy cutting blade 14 can be detachably connected through the cooperation of the arc-shaped mounting plate 151, the first pressure strip 152 and the connecting screw, which facilitates the replacement of the first dummy cutting blade 12 and the second dummy cutting blade 14.

[0024] Preferably, the blade 121 is provided with a screw through hole 124, which makes way for the connecting screw, so that the connecting screw passes through the screw through hole 124 to connect the arc-shaped mounting plate 151 and the first pressure strip 152.

[0025] Preferably, the arc-shaped mounting plate 151 has screw through holes 1511 perpendicular to its side surface, and the first pressure strip 152 has a first threaded hole 1521 corresponding to the screw through holes 1511. The connecting screw passes through the screw through holes 1511 and is screwed into the first threaded hole 1521 to tighten the first pressure strip 152.

[0026] Preferably, the arc-shaped mounting plate 151 has a circumferentially oriented slot 1512, and the outer circumference of the truncated shaft 11 has a second threaded hole. A fixing screw passes through the slot 1512 and is screwed into the second threaded hole, allowing the arc-shaped mounting plate 151 to be adjusted and fixed around the axis of the truncated shaft 11. Tightening the fixing screw fixes the arc-shaped mounting plate 151 to the truncated shaft 11. Loosening the fixing screw allows the arc-shaped mounting plate 151 to rotate, and the fixing screw slides in the slot 1512, thereby adjusting the position of the arc-shaped mounting plate 151.

[0027] Specifically, the arc-shaped mounting plate 151 has two slots 1512, which are located at both ends of the arc-shaped mounting plate 151. Each slot 1512 corresponds to two second threaded holes, which are used to fix the plate more reliably with two fixing screws. At the same time, the slots 1512 are provided with steps to facilitate hiding the nuts of the fixing screws below the outer surface of the arc-shaped mounting plate 151.

[0028] Specifically, such as Figure 7 As shown, the length of the first dummy cutter 12 is longer than the length of the second dummy cutter 14. That is, the first dummy cutter 12 corresponds to the width of the raw material paper strip 41, and the second dummy cutter 14 corresponds to the width of the raw material paper strip minus the width of the formed paper bag. This allows for the creation of both a first dummy cut line 42 for separating the front and back paper bags and a second dummy cut line 44 for forming the paper strip 43 that closes the opening of the paper bag.

[0029] Specifically, due to the relatively long lengths of the first and second dummy cutting blades 12 and 14, machining the corresponding length of the arc-shaped mounting plate 151 remains challenging. In this application, the first dummy cutting blade 12 is machined into multiple segments for splicing. Correspondingly, multiple arc-shaped mounting plates 151 are spliced ​​to correspond to the length of the first dummy cutting blade 12, and multiple first pressure strips 152 are also spliced ​​together. The positions are adjusted using the slots 1512 and fixing screws of the arc-shaped mounting plates 151 to ensure that the sides of the multiple arc-shaped mounting plates 151 are aligned.

[0030] Preferably, a second pressure strip 132 is detachably connected to the side of the first pressure strip 152 away from the arc-shaped mounting plate 151. The second pressure strip 132 and the first pressure strip 152 for mounting the first dummy cutting blade 12 clamp and fix the indentation blade 13.

[0031] Specifically, the first threaded hole 1521 of the first pressure strip 152 corresponding to the second pressure strip 132 is designed as a smooth hole, and the threaded hole is designed on the second pressure strip 132 so that the connecting screw passes through the first pressure strip 152 and is threadedly connected to the second pressure strip 132, thereby achieving the fixation of the second pressure strip 132, the indentation knife 13, the first pressure strip 152, the first dummy cutting knife 12, and the arc-shaped mounting plate 151 in one go.

[0032] Preferably, it also includes a virtual cutting roller drive device, which includes a motor 21 and a transmission mechanism; the driven gear 23 of the transmission mechanism is coaxially fixed on the virtual cutting shaft 11, the motor 21 drives the driving gear 22 of the transmission mechanism to rotate, and the driving gear 22 drives the driven gear 23 and the virtual cutting shaft 11 to rotate synchronously.

[0033] Preferably, it also includes a detector 3, which is used to detect the initial angular position of the virtual cutting shaft 11. The detector 3 includes a mounting hoop 31 detachably connected to the virtual cutting shaft 11, a detection plate 32 fixed on the mounting hoop 31, and a detection sensor 33. When the detection plate 32 rotates past the detection sensor 33 with the virtual cutting shaft 11, the detection sensor 33 generates a signal, which can help determine the angular position of the virtual cutting shaft 11 and thus help calibrate the initial angular position.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A paper tape cutting machine, characterized in that, The device includes a rubber-coated roller and a dummy-cut roller (1) that rotate synchronously in opposite directions. The dummy-cut roller (1) includes a dummy-cutting shaft (11), a first dummy-cutting blade (12), a creasing blade (13), and a second dummy-cutting blade (14). The first dummy-cutting blade (12), the creasing blade (13), and the second dummy-cutting blade (14) are disposed on the outer periphery of the dummy-cutting shaft (11), and the width direction of the first dummy-cutting blade (12), the creasing blade (13), and the second dummy-cutting blade (14) is radially arranged along the dummy-cutting shaft (11). The length direction is set along the axial direction of the virtual cutting shaft (11); the included angle between the first virtual cutting blade (12) and the second virtual cutting blade (14) is an acute angle; the indentation blade (13) is set on the outer periphery of the virtual cutting shaft (11) and located between the first virtual cutting blade (12) and the second virtual cutting blade (14); the distance between the pressure surface (131) of the indentation blade (13) and the axis of the virtual cutting shaft (11) is greater than the distance between the tip of the first virtual cutting blade (12) and the axis of the virtual cutting shaft (11).

2. The paper tape cutting machine according to claim 1, characterized in that, The first virtual cutting blade (12) and the second virtual cutting blade (14) both include a blade body (121), a number of cutting teeth (122) and a number of tooth grooves (123). The number of cutting teeth (122) are fixed on the blade body (121) and arranged along the length direction. A tooth groove (123) is provided between two adjacent cutting teeth (122) to separate the two cutting teeth (122).

3. A paper tape cutting machine according to claim 2, characterized in that, The width of the tooth groove (123) is less than half the width of the blade tooth (122).

4. A paper tape cutting machine according to claim 2 or 3, characterized in that, The virtual cutting roller (1) also includes a virtual cutting blade mounting assembly, wherein the first virtual cutting blade (12) and the second virtual cutting blade (14) are both mounted on the virtual cutting shaft (11) through the virtual cutting blade mounting assembly; The dummy cutting blade mounting assembly includes: an arc-shaped mounting plate (151), a first pressure strip (152), and connecting screws. The arc-shaped mounting plate (151) is fixed on the outer periphery of the dummy cutting shaft (11). The first pressure strip (152) presses the blade (121) of the first dummy cutting blade (12) or the second dummy cutting blade (14) against the side of the arc-shaped mounting plate (151). The first pressure strip (152) and the arc-shaped mounting plate (151) are detachably connected by connecting screws.

5. A paper tape cutting machine according to claim 4, characterized in that, The blade (121) is provided with a screw through hole (124), and the connecting screw passes through the screw through hole (124).

6. A paper tape cutting machine according to claim 5, characterized in that, The arc-shaped mounting plate (151) has a screw through hole (1511) perpendicular to the side of the arc-shaped mounting plate (151), and the first pressure strip (152) has a first threaded hole (1521) corresponding to the screw through hole (1511).

7. A paper tape cutting machine according to claim 4, characterized in that, The arc-shaped mounting plate (151) has a circumferential groove (1512) and the outer circumference of the virtual cutting shaft (11) has a second threaded hole. The fixing screw passes through the groove (1512) and is screwed into the second threaded hole, so that the arc-shaped mounting plate (151) can be adjusted and fixed around the axis of the virtual cutting shaft (11).

8. A paper tape cutting machine according to claim 4, characterized in that, The first pressure strip (152) is detachably connected to a second pressure strip (132) on the side away from the arc-shaped mounting plate (151). The second pressure strip (132) and the first pressure strip (152) clamp and fix the indentation knife (13).

9. A paper tape cutting machine according to claim 1, characterized in that, It also includes a virtual cutting roller drive device, which includes a motor (21) and a transmission mechanism; the driven gear (23) of the transmission mechanism is coaxially fixed on the virtual cutting shaft (11), the motor (21) drives the driving gear (22) of the transmission mechanism to rotate, and the driving gear (22) drives the driven gear (23) and the virtual cutting shaft (11) to rotate synchronously.

10. A paper tape cutting machine according to claim 1, characterized in that, It also includes a detector (3), which is used to detect the initial angular position of the virtual cutting shaft (11); the detector (3) includes a mounting hoop (31) detachably connected to the virtual cutting shaft (11), a detection plate (32) fixed on the mounting hoop (31) and a detection sensor (33). When the detection plate (32) rotates past the detection sensor (33) with the virtual cutting shaft (11), the detection sensor (33) generates a signal.

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