CN218857818U

CN218857818U - Die cutting device of bag making machine

Info

Publication number: CN218857818U
Application number: CN202223228900.0U
Authority: CN
Inventors: 张国力; 尹晓娜; 张孟霞; 唐晓丽; 贺朝安
Original assignee: Henan Kangmei New Material Technology Co ltd
Current assignee: Henan Kangmei New Material Technology Co ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-04-14
Anticipated expiration: 2032-12-02

Abstract

The utility model relates to a system bag cross cutting technical field, it relates to a system bag machine cutting device, comprises a workbench, be provided with die-cutting mechanism and frame on the workstation, die-cutting mechanism includes two rotor rolls, the axle center department of two rotor rolls is equipped with drives rotor roll pivoted pivot, install in the frame at the both ends of pivot, the mounting groove has been seted up with first rotor roll and second rotor roll horizontal symmetry in the middle part of the frame, be provided with two fixed stations in the mounting groove, it is provided with three boss to extend in the frame, the mounting hole has all been seted up on the boss, install the ball bearing of being connected with the pivot in the mounting hole, be provided with on the workstation and put the bag roller and send the bag roller, put the double-scroll axle that the bag roller set up from top to bottom, this application can not make the product appear that the die-cutting trace is too shallowly torn the problem of not opening because of lack the compression equipment or add the strength inadequately.

Description

Die cutting device of bag making machine

Technical Field

The application relates to the technical field of reel die cutting, in particular to a die cutting device of a bag making machine.

Background

The current reel cross cutting equipment has round pressing flat cross cutting and round pressing round cross cutting, and the cross cutting that this application system bag adopted means round pressing round cross cutting, utilizes the roll of upper and lower drum cutting die to press cutting promptly to realize, and the roll web material loading is convenient simultaneously the cylinder roll die cutting speed in succession is comparatively fast, and production efficiency is high, and considering round pressing round cross cutting is line contact, the stability of the shaping of the little product of operating pressure is good, and market usage is higher.

However, the following problems are present in the working process of the plastic bag die cutting by the equipment:

1. the current knife roller design, whether the knife roller is an insert type or a concave-convex type, can cause die cutting failure due to lack of pressurizing equipment or insufficient pressurizing force.

2. The plastic bag product is not thorough enough when being cut for the finished product is not convenient for manual tearing, causes harmful effects to people's daily use.

Disclosure of Invention

In view of the above situation, in order to overcome the defects of the prior art, the present application aims to provide a die cutting device for a bag making machine, which effectively solves the problem of die cutting failure caused by insufficient pressure strength due to knife roll design.

The technical scheme includes that the die cutting device of the bag making machine comprises a workbench, a rack of a die cutting mechanism and a fixed die cutting mechanism is arranged on the workbench, the die cutting mechanism comprises a first knife roll and a second knife roll, vertical mounting grooves are formed in the middle of the rack in a mode that the first knife roll and the second knife roll are transversely and symmetrically arranged, rotating shafts for driving the knife rolls to rotate are arranged at the axes of the first knife roll and the second knife roll, two ends of each rotating shaft are arranged in the mounting grooves, and the first knife roll can slide up and down along the mounting grooves; the utility model discloses a bag roller, including frame, mounting hole, ball bearing, workstation, bag roller, second boss, third boss, the frame is last to extend and to be provided with first boss, second boss and third boss, all seted up the mounting hole on the boss, install the ball bearing who is connected with the pivot in the mounting hole, be provided with on the workstation and put the bag roller and send the bag roller, put the double-reel that the bag roller set up from top to bottom.

Furtherly, the surface of first rotor sets up the pit of a plurality of equidistance arrangements, and the one end of the pivot of first rotor is rotated and is connected first bearing frame, and first bearing frame passes through the bolt fastening on first fixed station, and first driving motor is connected in the other end transmission of the pivot of first rotor, and first driving motor passes through the bolt fastening on the second fixed station.

Furthermore, first fixed station with second fixed station sliding connection is connected with same group catch bar in the mounting groove, first fixed station and second fixed station top.

Further, the surface of second rotor sets up the awl thorn that a plurality of equidistance were arranged, and the one end of the pivot of second rotor is rotated and is connected with the second bearing frame, and the second bearing frame passes through the bolt fastening in the mounting groove bottom, and the other end transmission of the pivot of second rotor is connected second driving motor, and second driving motor passes through the bolt fastening in the bottom of mounting groove.

Furthermore, the pricks are arranged to be polygonal edges and corners, polygonal concave angles are arranged on the inner walls of the concave pits, and the edges and corners are matched with the concave angles.

Furthermore, the first boss is connected with bearings at two ends of a rotating shaft of the bag feeding roller through ball bearings, the second boss is connected with bearings at two ends of an upper winding shaft of the bag placing roller through ball bearings, and the third boss is connected with bearings at two ends of a lower winding shaft of the bag placing roller through ball bearings.

Further, the first boss is higher than the second boss, a first tensioning cylinder is formed between the first boss and the second boss, the second boss is higher than the third boss, and a second tensioning cylinder is formed between the second boss and the third boss.

Compared with the prior art, the beneficial effects of this application are:

1. when the first knife roll and the second knife roll are used for up-and-down extrusion die cutting, the conical pricks of the second knife roll prick the plastic bag and bring the plastic bag into the concave pits of the first knife roll, the polygonal edge angles of the conical pricks are matched with the polygonal concave angles of the concave pits during design die cutting contact, certain puncture strength is provided for the plastic bag, no pressurizing equipment is needed during die cutting of the plastic bag, the conical pricks and the concave pits are arranged at equal intervals, the plastic bag cannot be cut off in a whole strip, numerous prismatic gaps can be formed in the pricked plastic bag, two connected plastic bags can be detached by manual work only through slight tearing, a certain rotating area is set for the first knife roll and the second knife roll, and large-area cutting of the plastic bag cannot be caused;

2. this cutting device can not make the product appear the die cut trace because of lacking pressure equipment or add the pressure degree not enough and lead to tearing the problem that can not open, tears hard and also can not make the plastic bag damaged, avoids the waste of plastic bag, and this application has guaranteed that the quality of product provides more efficient use simultaneously and has experienced for the consumer.

Drawings

Fig. 1 is a schematic view of the overall structure of the present application.

Fig. 2 is a schematic structural view of the die-cutting mechanism of the present application.

FIG. 3 is a schematic view of the first and second knife rolls die cut configuration of the present application.

Fig. 4 is a schematic view of a ball bearing in the boss of the present application.

The reference numerals in the schematic drawings illustrate:

1. a work table; 2. a die-cutting mechanism; 211. a first knife roll; 212. a second knife roll; 213. e, stabbing; 214. a pit; 215. a first bearing housing; 216. a second bearing housing; 217. a first drive motor; 218. a second drive motor; 3. a frame; 311. mounting grooves; 312. a first fixed table; 313. a second stationary stage; 4. a bag feeding roller; 5. winding a reel; 6. a lower reel; 7. a first boss; 8. a second boss; 9. a third boss; 10. ball bearings.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application discloses system bag machine cutting device.

Referring to fig. 1, a die cutting device of a bag making machine comprises a workbench 1, a die cutting mechanism 2 and a frame 3 for fixing the die cutting mechanism are arranged on the workbench 1, the die cutting mechanism 2 comprises a first knife roller 211 and a second knife roller 212, vertical mounting grooves 311 are transversely and symmetrically formed in the middle of the frame 3 through the first knife roller 211 and the second knife roller 212, rotating shafts for driving the knife rollers to rotate are arranged at the axes of the first knife roller 211 and the second knife roller 212, two ends of the rotating shafts are arranged in the mounting grooves 311, and the first knife roller 211 can slide up and down along the mounting grooves 311;

a plurality of concave pits 214 which are arranged at equal intervals are arranged on the outer surface of the first knife roller 211, one end of a rotating shaft of the first knife roller 211 is rotatably connected with a first bearing seat 215, the first bearing seat 215 is fixed on a first fixed table 312 through a bolt, the other end of the rotating shaft of the first knife roller 211 is in transmission connection with a first driving motor 217, and the first driving motor 217 is fixed on a second fixed table 313 through a bolt;

the first fixed table 312 and the second fixed table 313 are slidably connected in the mounting groove 311, and the same group of push rods are connected above the first fixed table 312 and the second fixed table 313; under the pushing/pulling action of the push rod, the first knife roller 211 slides up and down along the mounting groove 311, so that the two knife rollers are squeezed or separated, and the die cutting operation is realized.

The outer surface of the second knife roll 212 is provided with a plurality of conical spines 213 which are arranged at equal intervals, one end of a rotating shaft of the second knife roll 212 is rotatably connected with a second bearing seat 216, the second bearing seat 216 is fixed at the bottom of the mounting groove 311 through a bolt, the other end of the rotating shaft of the second knife roll 212 is in transmission connection with a second driving motor 218, and the second driving motor 218 is fixed at the bottom of the mounting groove 311 through a bolt.

The tapered spine 213 is formed with a polygonal edge angle, and the inner wall of the concave pit 214 is formed with a polygonal concave angle, which are matched with each other.

Referring to fig. 1, a first boss 7, a second boss 8 and a third boss 9 extend from the frame 3, the bosses are provided with mounting holes, ball bearings 10 connected to the rotating shaft are mounted in the mounting holes, the table 1 is provided with a bag placing roller and a bag feeding roller 4, and the bag placing roller is a double-reel shaft arranged up and down.

The first boss 7 is connected with bearings at two ends of a rotating shaft of the bag feeding roller 4 through ball bearings, the second boss 8 is connected with bearings at two ends of an upper scroll 5 of the bag placing roller through ball bearings, and the third boss 9 is connected with bearings at two ends of a lower scroll 6 of the bag placing roller through ball bearings.

Referring to fig. 2, the first boss 7 is higher than the second boss 8, a first tensioning cylinder is formed between the first boss 7 and the second boss 8, the second boss 8 is higher than the third boss 9, and a second tensioning cylinder is formed between the second boss 8 and the third boss 9; the second tensioning cylinder is responsible for stretching and flattening the multi-layer plastic bags and enters the last process before the die, and the first tensioning cylinder is responsible for attaching and pressing the stretched and flattened plastic bags, and conveying the plastic bags to a position between the first knife roll 211 and the second knife roll 212 for die cutting;

specifically, a travel distance of the plastic bag can be set in advance, for example, 20 cm, when the plastic bag has traveled 20 cm from between the first knife roll 211 and the second knife roll 212, the first driving motor 217 and the second driving motor 218 are started to drive the rotating shaft of the first knife roll 211 and the rotating shaft of the second knife roll 212 to rotate, due to the design of the conical pricks 213 on the outer surface of the second knife roll 212, the plastic bag is firstly pricked into the concave pits 214 of the first knife roll 211 by the conical pricks 213, because the conical pricks 213 are set to be polygonal corners, the inner wall of the concave pits 214 is set to be a plurality of polygonal concave corners matched with the corners of the conical pricks 213, when the concave corners and the corners are cut by a die, a plane is formed, the plastic bag is pricked into the concave pits 214, the conical pricks 213 and the concave pits 214 are arranged at equal intervals, a certain distance is arranged between two adjacent conical pricks 213 or concave pits 214, so that the plastic bag cannot be integrally linearly pricked, easy-tearing lines formed by equidistant tearing lines formed by two adjacent plastic bags are densely arranged, and two adjacent plastic bags are not easily torn apart, so that two adjacent plastic bags need to be easily produced and two bags are easily torn, and the maintenance cost is saved.

The working principle of the die cutting of the bag making machine provided by the embodiment of the utility model is that in the die cutting working process, the second tensioning cylinder conveys two layers or multiple layers of plastic bags and simultaneously stretches, levels and tensions the plastic bags, the plastic bags are pressed, laminated and tensioned for the second time when the second tensioning cylinder conveys the first tensioning cylinder, and the plastic bags are conveyed to a position between the second knife roll 212 and the first knife roll 211 by the bag conveying roll 4, so that the plastic bags are in the best level state during die cutting;

starting a first driving motor 217 and a second driving motor 218, synchronously rotating a second knife roll 212 and a first knife roll 211 to start die cutting operation, after a plastic bag advances to a set distance, pushing a push rod to push two fixed stations downwards, moving the first knife roll 211 downwards to enable a taper thorn 213 on the second knife roll 212 to be drawn into a concave pit 214 of the first knife roll 211, cutting a die cutting mark on the plastic bag under the continuous synchronous rotation of the first knife roll 211 and the second knife roll 212, controlling the length of the cutting mark by controlling the rotation time of the two knife rolls after being meshed so as to be suitable for different plastic bags to be die-cut,

after one die cutting operation is finished, the push rod is contracted to pull up the two fixing tables, so that the first knife roller 211 moves upwards to finish the die cutting operation; the time interval of the falling of the first blade roller 211 may be set according to the length of the plastic bag.

Although embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The die cutting device for the bag making machine comprises a workbench (1) and is characterized in that a die cutting mechanism (2) and a rack (3) for fixing the die cutting mechanism are arranged on the workbench (1), the die cutting mechanism (2) comprises a first cutter roll (211) and a second cutter roll (212), vertical mounting grooves (311) are transversely and symmetrically formed in the middle of the rack (3) through the first cutter roll (211) and the second cutter roll (212), rotating shafts for driving the cutter rolls to rotate are arranged at the axes of the first cutter roll (211) and the second cutter roll (212), two ends of each rotating shaft are arranged in the mounting grooves (311), and the first cutter roll (211) can slide up and down along the mounting grooves (311);

a first boss (7), a second boss (8) and a third boss (9) extend from the rack (3), mounting holes are formed in the bosses, ball bearings (10) connected with the rotating shaft are mounted in the mounting holes, a bag placing roller and a bag conveying roller (4) are arranged on the workbench (1), and the bag placing roller is a double-reel shaft which is arranged up and down;

the outer surface of the first knife roller (211) is provided with a plurality of pits (214) which are arranged at equal intervals, one end of a rotating shaft of the first knife roller (211) is rotatably connected with a first bearing seat (215), the first bearing seat (215) is fixed on a first fixed table (312) through a bolt, the other end of the rotating shaft of the first knife roller (211) is in transmission connection with a first driving motor (217), and the first driving motor (217) is fixed on a second fixed table (313) through a bolt;

the outer surface of second rotor (212) sets up awl thorn (213) that a plurality of equidistance were arranged, and the one end of the pivot of second rotor (212) is rotated and is connected with second bearing frame (216), and second bearing frame (216) pass through the bolt fastening in mounting groove (311) bottom, and second driving motor (218) are connected in the other end transmission of the pivot of second rotor (212), and second driving motor (218) pass through the bolt fastening in the bottom of mounting groove (311).

2. The bag machine die-cutting device according to claim 1, wherein the first fixing station (312) and the second fixing station (313) are slidably connected in the mounting slot (311), and the same set of push rods is connected above the first fixing station (312) and the second fixing station (313).

3. The bag machine die-cutting device according to claim 1, wherein the stabs (213) are provided with polygonal corners and the inner walls of the recesses (214) are provided with polygonal reentrant corners, and the corners and the reentrant corners are matched.

4. The die cutting device for the bag making machine according to the claim 1, wherein the first boss (7) is connected with bearings at two ends of a rotating shaft of the bag feeding roller (4) through ball bearings, the second boss (8) is connected with bearings at two ends of an upper winding shaft (5) of the bag placing roller through ball bearings, and the third boss (9) is connected with bearings at two ends of a lower winding shaft (6) of the bag placing roller through ball bearings.

5. The bag machine die cutting device according to claim 1, wherein the first boss (7) is taller than the second boss (8), a first tensioning cylinder being formed between the first boss (7) and the second boss (8), the second boss (8) is taller than the third boss (9), and a second tensioning cylinder being formed between the second boss (8) and the third boss (9).