CN212021817U

CN212021817U - Plastic bag production is with cutting device

Info

Publication number: CN212021817U
Application number: CN201922482807.4U
Authority: CN
Inventors: 宋继军
Original assignee: Chongqing Siping Taixing Plastic Packing Co ltd
Current assignee: Chongqing Hechang Packaging Co.,Ltd.
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-27
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a plastic bag production is with cutting device, include: the cutting device comprises a support, a base positioned on a horizontal plane is arranged on the support, two mounting columns are arranged on the base, the two mounting columns are symmetrically arranged, opposite surfaces of the two mounting columns are recessed to form first sliding grooves positioned in the vertical direction, a mounting rod is arranged on the mounting column on one side, an air cylinder is arranged on one side, close to the base, of the mounting rod, a cross beam is arranged on an output end of the air cylinder, two ends of the cross beam are slidably arranged in the two first sliding grooves, a cutting knife is arranged on one side, close to the base, of the cross beam through a mounting mechanism, cutting grooves are formed in the base under the cutting knife, pressing strips are respectively arranged on two sides of the cross beam and are respectively used for pressing plastic films on two sides of each cutting groove when the air cylinder pushes the cutting knife to cut the plastic films in the cutting grooves, and the cutting device can simultaneously press, so as to ensure that the cut plastic film is more accurate.

Description

Plastic bag production is with cutting device

Technical Field

The utility model relates to a plastic bag production technical field, concretely relates to plastic bag production is with cutting device.

Background

When producing plastic bags, firstly, selecting proper plastic raw materials to form a plastic film through blow molding, then convolving the blown plastic film through a winding drum and cutting the plastic film into plastic film rolls, then transferring the plastic film rolls convolved on the winding drum to a printing device for printing, compounding the printed plastic film, bonding two or more layers of materials together through media (such as glue), then sending the compounded plastic film into a curing chamber for curing, conveying the cured plastic film to a cutting device through a conveying device for cutting into the specification required by a client, wherein the existing cutting device directly cuts the plastic film through a cutting knife when cutting the plastic film, and because the plastic film is softer, if the plastic film is directly and poorly cut by the cutting knife, the cut plastic film is easy to have great error with the required specification, causing waste of the plastic film and increasing the production cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a plastic bag production is with cutting device solves among the prior art when cutting plastic film, and the plastic film that cuts out can not reach the problem of standard.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a plastic bag production is with cutting device includes: the support, the support stands on subaerially, installs the base that is located the horizontal plane on the support, installs two erection columns on the base, and two erection column symmetries set up, and the equal sunken first spout that is located vertical side that forms of the face that two erection columns are relative installs the installation pole on the erection column of one side, installs the cylinder on the one side that the installation pole is close to the base, installs the crossbeam on the output of cylinder, the both ends slidable ground of crossbeam sets up in two first spouts, and the crossbeam is close to and installs the cutting knife through installation mechanism on one side of base, has seted up on the base under the cutting knife and has cut the cut groove, the both sides of crossbeam are installed respectively and are compressed tightly the strip, and two are compressed tightly the strip and are used for respectively when the cylinder promotes the cutting knife will cut the plastic film.

Compared with the prior art, the utility model discloses following beneficial effect has:

when using this plastic bag production with cutting device, at first carry plastic film through external material feeding unit under the cutting knife, when the cylinder promoted the cutting knife and cut plastic film in cutting cut groove, two compressing tightly the strip and will cut the plastic film of cut groove both sides and compress tightly, prevent because of when cutting plastic film, cutting knife pulling plastic film, and the plastic film that leads to the fact to cut out is longer than the specification that the regulation required, and influences subsequent production system bag.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural view of a slitting device for plastic bag production.

Fig. 2 is a side view of a slitting device for plastic bag production.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic view of an installation structure of the rotating shaft and the limiting cylinder.

Fig. 5 is a schematic structural view of the rotation limiting hole and the limiting hole.

Description of reference numerals: the device comprises a support 1, a base 2, a mounting column 3, a first sliding groove 4, a mounting rod 5, a cylinder 6, a cross beam 7, a cutting knife 8, a cutting groove 9, a plastic film 10, a pressing strip 11, a connecting column 12, a cavity 13, a second sliding groove 14, a third sliding groove 15, a rotating shaft 16, a gear 17, a rotating hole 18, a limiting hole 19, a rack 20, a limiting rod 21, a limiting cylinder 22 and a pressing pad 23.

Detailed Description

In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:

as shown in fig. 1 and fig. 2, the utility model provides a plastic bag production is with cutting device, include: the device comprises a support 1, the support 1 is erected on the ground, a base 2 positioned on a horizontal plane is arranged on the support 1, two mounting columns 3 are arranged on the base 2, the two mounting columns 3 are symmetrically arranged, opposite surfaces of the two mounting columns 3 are both sunken to form a first chute 4 positioned in the vertical direction, a mounting rod 5 is arranged on the mounting column 3 at one side, an air cylinder 6 is arranged on one side of the mounting rod 5 close to the base 2, a cross beam 7 is arranged at the output end of the air cylinder 6, two ends of the beam 7 are slidably arranged in the two first sliding grooves 4, a cutting knife 8 is arranged on one side of the beam 7 close to the base 2 through an installing mechanism, a cutting groove 9 is arranged on the base 2 right below the cutting knife 8, and two sides of the cross beam 7 are respectively provided with a pressing strip 11, and the two pressing strips 11 are respectively used for pressing the plastic films 10 on two sides of the cutting groove 9 when the air cylinder 6 pushes the cutting knife 8 to cut the plastic films 10 in the cutting groove 9. And the two pressing strips 11 are provided with pressing pads 23 on one surfaces close to the base 2, and the pressing pads 23 are made of rubber materials. When the slitting device for plastic bag production is used, firstly, a plastic film 10 is conveyed to the position right below the cutting knife 8 through an external feeding device, the frequency of the air cylinder 6 pushing the cutting knife 8 to cut the plastic film 10 can be reasonably set according to the speed of the plastic device for conveying the plastic film 10, further obtaining the plastic film 10 with the specified specification, when the air cylinder 6 pushes the cutting knife 8 to cut the plastic film 10 in the cutting groove 9, the two pressing strips 11 press the plastic films 10 on the two sides of the cutting groove 9, so that the plastic films 10 are prevented from being pulled by the cutting knife 8 when the plastic films 10 are cut, the cut plastic film is longer than the specification required by the specification, so that subsequent production bag making is influenced, and the pressing strip 11 is made of the rubber material, so that the rubber material has certain elasticity, and the pressing strip 11 is prevented from directly contacting with the plastic film 10 to crush the plastic film 10.

As shown in fig. 3-5, the mounting mechanism includes: the cutting device comprises two connecting columns 12, a gear 17, a limiting piece, a rotating shaft 16 and a limiting rod 21, wherein the two connecting columns 12 are fixedly arranged on one surface of a cutting knife 8, which is far away from a base 2, the cross beam 7 is provided with two connecting holes into which the two connecting columns 12 are respectively inserted, the two connecting columns 12 are respectively provided with a limiting groove, the cross beam 7 is internally provided with a cavity 13, one side of the cavity 13, which is close to the base 2, and the side wall of the cavity 13, which is far away from the base 2, are respectively sunken to form a second sliding groove 14, the side wall of the two second sliding grooves 14, which is close to the cavity 13, are respectively sunken to form a third sliding groove 15, when the cutting knife 8 is tightly attached to the cross beam 7, the two second sliding grooves 14 are respectively communicated with the two limiting grooves, the gear 17 is rotatably arranged in the cavity 13 through the rotating shaft 16, the rotating shaft 16 is fixedly connected with the gear, the rotating shaft 16 is perpendicular to the cross beam 7, the rotating shaft 16 is of a polygonal columnar structure, the rotating shaft 16 can rotate in the rotating hole 18, a limiting hole 19 is formed in the cross beam 7, the limiting hole 19 and the rotating hole 18 are coaxially arranged, the limiting piece is used for being matched with the limiting hole 19 to limit the rotating shaft 16 to rotate in the rotating hole 18, limiting rods 21 are arranged in the two second sliding grooves 14 in a sliding mode, racks 20 are arranged on one sides, close to the cavity 13, of the two limiting rods 21, the two racks 20 are located in the two third sliding grooves 15 respectively, the two racks 20 can slide in the third sliding grooves 15 respectively, the portions, located in the cavity 13, of the two racks 20 are meshed with the gear 17, and the gear 17 is used for pushing the two racks 20 to enable the two limiting rods 21 to. The locating part is a spacing section of thick bamboo 22, and a spacing section of thick bamboo 22 is polygonal tubular structure, has seted up the through-hole on a spacing section of thick bamboo 22, and the axis of through-hole coincides with the axis of a spacing section of thick bamboo 22, the through-hole only supplies pivot 16 to pass, and pivot 16 can not be at the through-hole internal rotation, a spacing section of thick bamboo 22 inserts in spacing hole 19, and a spacing section of thick bamboo 22 can not be at spacing hole 19 internal rotation, and a spacing section of thick bamboo 22 can slide on pivot 16.

The working principle of the mounting mechanism is as follows: when cutting knife 8 live time is too of a specified duration, need to change cutting knife 8 in order to guarantee the cutting effect, the step of changing cutting knife 8 is: firstly, pulling out a limiting cylinder 22 from a limiting hole 19 by hand, then rotating a rotating shaft 16 anticlockwise to drive a gear 17 to rotate, the gear 17 rotates to respectively push two racks 20 to slide in a third sliding groove 15 towards a direction departing from a connecting column 12, the two racks 20 respectively drive two limiting rods 21 to withdraw from the two limiting grooves, then pulling a cutting knife 8 towards a direction departing from a cross beam 7 to detach the cutting knife 8 from the cross beam 7, then installing a new cutting knife 8 on the cross beam 7, rotating the rotating shaft 16 anticlockwise when installing the cutting knife 8 to enable the two limiting rods 21 not to block the connecting column 12 from being inserted into two connecting holes of the cross beam 7 so that the cutting knife 8 is tightly attached to the cross beam 7, then rotating the rotating shaft 16 clockwise to respectively insert the two limiting rods 21 into the two limiting grooves, then pushing the limiting cylinder 22 into a limiting hole 19, thereby realizing the fixation of the rotating shaft 16 and preventing the rotating shaft 16 from rotating, thereby enabling the mounting of the cutting blade 8.

The inner wall of the limiting hole 19 and the limiting barrel 22 are made of rubber materials, so that the friction force between the limiting barrel 22 and the inner wall of the limiting hole 19 is increased, and the limiting barrel 22 cannot be separated from the limiting hole 19 under the condition that the limiting barrel 22 is not pulled by the outside.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a plastic bag production is with cutting device which characterized in that includes: the device comprises a support (1), wherein the support (1) is erected on the ground, a base (2) positioned on a horizontal plane is installed on the support (1), two mounting columns (3) are installed on the base (2), the two mounting columns (3) are symmetrically arranged, opposite surfaces of the two mounting columns (3) are recessed to form first sliding grooves (4) positioned in the vertical direction, mounting rods (5) are installed on the mounting columns (3) on one side, cylinders (6) are installed on one side, close to the base (2), of the mounting rods (5), a cross beam (7) is installed on the output end of each cylinder (6), two ends of the cross beam (7) are slidably arranged in the two first sliding grooves (4), a cutting knife (8) is installed on one side, close to the base (2), of the cross beam (7) through an installation mechanism, cutting grooves (9) are formed in the base (2) under the cutting knife (8), and pressing strips (11) are installed on two sides of the, the two pressing strips (11) are respectively used for pressing the plastic films (10) on the two sides of the cutting groove (9) when the air cylinder (6) pushes the cutting knife (8) to cut the plastic films (10) in the cutting groove (9).

2. A slitting device for plastic bag production according to claim 1, characterized in that pressing pads (23) are mounted on both sides of the two pressing strips (11) close to the base (2), and the pressing pads (23) are made of rubber material.

3. A slitting device for plastic bag production as set forth in claim 2, wherein the mounting mechanism comprises: the cutting knife comprises connecting columns (12), gears (17), limiting pieces, a rotating shaft (16) and limiting rods (21), wherein the two connecting columns (12) are fixedly arranged on one surface of a cutting knife (8) departing from a base (2), two connecting holes for inserting the two connecting columns (12) are formed in a cross beam (7), limiting grooves are formed in the two connecting columns (12), a cavity (13) is formed in the cross beam (7), one side of the cavity (13) close to the base (2) and the side wall of the cavity (13) departing from the base (2) are recessed to form second sliding grooves (14), the side walls of the two second sliding grooves (14) close to the cavity (13) are recessed to form third sliding grooves (15), when the cutting knife (8) is tightly attached to the cross beam (7), the two second sliding grooves (14) are respectively communicated with the two limiting grooves, the gears (17) are rotatably arranged in the cavity (13) through the rotating shaft (16), the rotating shaft (16) is fixedly connected with the gear (17), a rotating hole (18) which communicates the outside with the cavity (13) is formed in the cross beam (7), one end of the rotating shaft (16) penetrates through the rotating hole (18) and extends out of the cross beam (7), the rotating shaft (16) is perpendicular to the cross beam (7), the rotating shaft (16) is of a polygonal columnar structure and can rotate in the rotating hole (18), a limiting hole (19) is formed in the cross beam (7), the limiting hole (19) and the rotating hole (18) are coaxially arranged, a limiting piece is used for being matched with the limiting hole (19) to limit the rotating shaft (16) to rotate in the rotating hole (18), limiting rods (21) are arranged in the two second sliding grooves (14) in a sliding mode, racks (20) are arranged on one side, close to the cavity (13), of the two limiting rods (21), the two racks (20) are respectively located in the two third sliding grooves (15), and the two racks (20) can both slide in the third sliding grooves (15), the parts of the two racks (20) positioned in the cavity (13) are meshed with the gear (17), and the gear (17) is used for pushing the two racks (20) to enable the two limiting rods (21) to be respectively inserted into the two limiting grooves.

4. A slitting device for plastic bag production according to claim 3, wherein the limiting member is a limiting cylinder (22), the limiting cylinder (22) is of a polygonal tubular structure, a through hole is formed in the limiting cylinder (22), the axis of the through hole coincides with the axis of the limiting cylinder (22), the through hole is only used for the rotating shaft (16) to pass through, the rotating shaft (16) cannot rotate in the through hole, the limiting cylinder (22) is inserted into the limiting hole (19), and the limiting cylinder (22) cannot rotate in the limiting hole (19).

5. A slitting device for plastic bag production according to claim 3, characterized in that the inner wall of the limiting hole (19) and the limiting cylinder (22) are made of rubber materials, and when the limiting cylinder (22) is not subjected to external pulling force, the limiting cylinder (22) cannot be separated from the limiting hole (19).