CN221366091U - Dual-purpose sealing and cutting device for plastic bags - Google Patents

Abstract

The utility model relates to the technical field of plastic bag production equipment, and provides a dual-purpose plastic bag sealing and cutting device which comprises a portal frame, a first driving mechanism, a second driving mechanism, a third driving mechanism, a first sealing knife, a second sealing knife, a base, a support plate, cutters, a front pressing plate, a rear pressing plate and at least one adjustable limiting column, wherein the front pressing plate and the rear pressing plate are respectively arranged above two sides of a cutter groove of the base, the bottom of the front pressing plate and the bottom of the rear pressing plate are respectively connected with the first sealing knife and the second sealing knife, the adjustable limiting columns are respectively and uniformly arranged on one side of the support plate, which is provided with the cutters, and the bottoms of the adjustable limiting columns are respectively and uniformly arranged against the backs of the cutters. The utility model solves the problems that two sealing cutters of the existing plastic bag sealing and cutting machine are inconvenient to adjust and use and the cutter is bent to cause the continuous cutting of bags to form waste products.

Description

Dual-purpose sealing and cutting device for plastic bags

Technical Field

The utility model relates to the technical field of plastic bag production equipment, in particular to a dual-purpose plastic bag sealing and cutting device.

Background

When the existing plastic machine is used for making a flat pocket and a vest bag, two different machines are adopted, the existing sealing and cutting equipment is used for making the vest bag, and the cutter needs to be heated for achieving the effect of cutting off the plastic films. The flat bag is made by adopting a cold cutter, and the cutter groove are matched to cut off the bag. The existing two sealing cutters are integrated and cannot be adjusted independently, when a flat pocket or a vest bag is sealed and cut, the bag body is sealed before the cutter, and the bag body is sealed after the cutter, so that the two sealing cutters cannot be adjusted and used independently according to the needs, the whole machine is stopped for reassembling or two machine types are prepared, and the adjustment and maintenance are inconvenient. Meanwhile, when the cutter of the existing plastic bag sealing and cutting equipment works, the cutter is fixed on the cutter seat, the whole length of the cutter is long, so that the cutter is easy to bend at a plurality of positions such as the middle part and the like during cutting, particularly the problem is more obvious after a period of operation, further, the bag body is continuously cut to form waste products, and the flatness of the bag is poor.

Disclosure of utility model

Therefore, the utility model provides the plastic bag dual-purpose sealing and cutting device which has the advantages of reasonable structure, convenient and durable use, convenient adjustment and maintenance, improved cutting efficiency, good cutting effect and good sealing and cutting flatness.

In order to solve the technical problem, the utility model adopts the following scheme: the utility model provides a dual-purpose sealing and cutting device of plastic bag, includes portal frame, first actuating mechanism, second actuating mechanism, third actuating mechanism, first cutter, second cutter, base, backup pad, cutter, front bezel and back clamp plate seal, the base middle part is equipped with the cutter groove that is used for the cutter to push down the cutting, first actuating mechanism locates on the crossbeam of portal frame and first actuating mechanism output is connected and drive the backup pad and lift or push down in the backup pad, the backup pad can lift or push down the cutter groove top of locating the base, the cutter set firmly in one side of backup pad and cutter head stretches out the backup pad base and can follow the backup pad and push down the cutter groove of cutting flexible material or lift away the base after cutting, still include at least one adjustable spacing post, second actuating mechanism and third actuating mechanism locate on the crossbeam of portal frame and second actuating mechanism output are connected respectively and drive front bezel and back clamp plate lift or push down the groove both sides of base down, front bezel and back clamp plate locate respectively and bottom and back clamp plate's bottom and back clamp plate respectively and the bottom and the back clamp plate of a cutter are equipped with respectively and seal spacing post and can seal each one side of the cutter and locate respectively and seal the spacing post and seal respectively.

Further improvement, adjustable spacing post includes fixing base, spacing post and adjusting bolt, be equipped with adjustment tank and fixing base on the fixing base and locate backup pad upper portion, adjusting bolt passes on the adjustment tank with spacing post upper portion locking and the fixing base and spacing post bottom supports the cutter back of the knife.

Further improvement, the bottom of the limit post is of an inverted L shape, and the right-angle groove of the inverted L shape is propped against the cutter back.

Further improvement, the outside extension of cutter both ends constitutes fixed part, both ends are equipped with the gag lever post that wears to locate the portal frame crossbeam and can go up and down in the backup pad, the fixed part at cutter both ends passes the gag lever post at backup pad both ends respectively and lock the screw and connect soon, and the fixed part at cutter both ends is located between gag lever post and the lock screw and overlaps respectively and be equipped with compression spring.

Further improved, the first driving mechanism, the second driving mechanism and the third driving mechanism can be one of an air cylinder, a hydraulic cylinder, a screw motor or a servo motor and synchronous wheel group combined structure.

By adopting the technical scheme, the utility model has the beneficial effects that: the bottom of the adjustable limit posts are respectively and uniformly distributed to prop against the knife backs of the cutters, so that the cutters cannot be bent to cause that the cutter is not cut off and waste products are generated when the bag body is cut, the cutters are integrally stable and non-deformable through the distributed positioning and propping of the adjustable limit posts to the cutters, when the bending occurs locally, the cutters are quickly corrected through adjusting the amplitude of the adjustable limit posts, the cutting of the bag body is effectively guaranteed, the cutting flatness is good, the sealing flatness of the bag is good, meanwhile, the first sealing cutter and the second sealing cutter are independently driven through the separation of the second driving mechanism and the third driving mechanism, the two sealing cutters can be separately and quickly adjusted for use, and a user can freely adjust the cutter before or after the cutters according to the sealing of the bag body, so that the cutter is suitable for switching use of flat bags and vest bags, and the dual-purpose of a machine table is realized, and the cutter is convenient to use and durable, and the cutter is convenient to adjust and maintain, the cutting efficiency is improved, the cutting effect is good, and the sealing flatness is good. Through further setting, the fixed part at cutter both ends passes the gag lever post at backup pad both ends respectively and connects soon with the locking screw, and the fixed part at cutter both ends is located between gag lever post and the locking screw and overlaps respectively and be equipped with compression spring, and the accessible is adjusted compression spring's compression volume and is made the cutter keep stretching state, further ensures bag body cutting efficiency and improves the roughness of cutting, but extensive popularization and application.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

fig. 2 is a schematic view of a part of the structure of an embodiment of the present utility model.

Detailed Description

The utility model will now be further described with reference to the drawings and detailed description.

Referring to fig. 1-2, the two-purpose plastic bag sealing and cutting device of the utility model comprises a portal frame 1, a first driving mechanism 2, a second driving mechanism 3, a third driving mechanism 4, a first sealing knife 5, a second sealing knife, a base, a supporting plate 7, a cutter 8, a front pressing plate 9, a rear pressing plate 10 and three adjustable limit posts 6, wherein a cutter groove for downwards pressing and cutting the cutter 8 is arranged in the middle of the base, the first driving mechanism 2 is arranged on a cross beam of the portal frame 1, the output end of the first driving mechanism 2 is connected and drives the supporting plate 7 to upwards lift or downwards press, the supporting plate 7 can be upwards or downwards pressed and arranged above the cutter groove of the base, the cutter 8 is fixedly arranged on one side of the supporting plate 7, the cutter head of the cutter 8 extends out of the bottom edge of the supporting plate 7 and can downwards press and cut flexible materials along with the supporting plate 7 or upwards lift the cutter groove of the base after cutting, the two ends of the cutter 8 extend outwards to form fixed parts, the two ends of the supporting plate 7 are provided with limiting rods 701 penetrating through the beam of the portal frame 1 and capable of lifting up and down, the fixed parts at the two ends of the cutter 8 respectively penetrate through the limiting rods 701 at the two ends of the supporting plate 7 and are connected with locking screws in a screwed mode, compression springs are respectively sleeved between the limiting rods 701 and the locking screws at the fixed parts at the two ends of the cutter 8, the second driving mechanism 3 and the third driving mechanism 4 are arranged on the beam of the portal frame 1, the output ends of the second driving mechanism 3 and the third driving mechanism 4 are respectively connected and drive a front pressing plate 9 and a rear pressing plate 10 to lift up or press down to two sides of a cutter groove of the base, the front pressing plate 9 and the rear pressing plate 10 are respectively arranged above the two sides of the cutter groove of the base, the bottom of the front pressing plate 9 and the bottom of the rear pressing plate 10 are respectively connected with the first sealing cutter 5 and the second sealing cutter, each adjustable spacing post 6 equipartition is located on the backup pad 7 respectively and is located the one side that is equipped with cutter 8 and the bottom equipartition of each adjustable spacing post 6 supports cutter 8 back of the knife respectively, adjustable spacing post 6 includes fixing base, spacing post and adjusting bolt, be equipped with adjustment tank and fixing base on the fixing base and locate backup pad 7 upper portion, adjusting bolt passes adjustment tank and locks spacing post upper portion and just supports cutter 8 back of the knife bottom on the fixing base, spacing post bottom is the right angle groove of type L and this type L and supports with cutter 8 back of the knife and lean on.

The first driving mechanism 2, the second driving mechanism 3 and the third driving mechanism 4 are servo motors which respectively drive the supporting plate 7, the front pressing plate 9 and the rear pressing plate 10 to lift or press down through the output of the synchronous wheel sets. The front pressing plate 9 and the rear pressing plate 10 regulate the pressing depth through the servo control of the second driving mechanism 3 and the third driving mechanism 4, so that the first sealing knife 5 and the second sealing knife are matched with the bases to be positioned at two sides of the cutter groove to seal the vest bag or the flat bag.

The number of the adjustable limit posts in the embodiment can be increased or decreased according to the length requirement of the cutter, the adjusting groove on the fixing seat can adopt a waist-shaped hole and the like to realize the limit post to move up and down to adjust the limit groove of the amplitude, and the first driving mechanism, the second driving mechanism and the third driving mechanism can also be one of an air cylinder, a hydraulic cylinder or a screw motor for replacing driving.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (5)

1. The utility model provides a dual-purpose sealing and cutting device of plastic bag, includes portal frame, first actuating mechanism, second actuating mechanism, third actuating mechanism, first sealing knife, second sealing knife, base, backup pad, cutter, front bezel and back clamp plate, the base middle part is equipped with the cutter groove that is used for the cutter to push down and cut, first actuating mechanism locates on the crossbeam of portal frame and first actuating mechanism output is connected and drives to lift or push down in the backup pad, the backup pad can lift or push down the cutter groove top of locating the base with locating the cutter, the cutter stretches out the cutter groove that lifts and leaves the base on one side of backup pad and cutter head stretches out the backup pad base and can follow the backup pad and push down and cut flexible material or cut back, its characterized in that: the automatic cutting machine further comprises at least one adjustable limit post, wherein the second driving mechanism and the third driving mechanism are arranged on a cross beam of the portal frame, the output ends of the second driving mechanism and the third driving mechanism are respectively connected and drive the front pressing plate and the rear pressing plate to lift or press down to two sides of a cutter groove of the base, the front pressing plate and the rear pressing plate are respectively arranged above two sides of the cutter groove of the base, the bottom of the front pressing plate and the bottom of the rear pressing plate are respectively connected with the first cutter sealing and the second cutter sealing, the adjustable limit posts are respectively and uniformly distributed on one side of the supporting plate, which is provided with a cutter, and the bottoms of the adjustable limit posts are respectively and uniformly distributed on the cutter back of the cutter.

2. The dual-purpose plastic bag sealing and cutting device according to claim 1, wherein: the adjustable spacing post includes fixing base, spacing post and adjusting bolt, be equipped with adjustment tank and fixing base on the fixing base and locate backup pad upper portion, adjusting bolt passes on adjustment tank with spacing post upper portion locking and the fixing base and spacing post bottom supports the cutter back of a knife.

3. The dual-purpose plastic bag sealing and cutting device according to claim 2, wherein: the bottom of the limiting column is inverted L-shaped, and the right-angle groove of the inverted L-shaped is propped against the back of the cutter.

4. The dual-purpose plastic bag sealing and cutting device according to claim 1, wherein: the utility model discloses a portal frame, including the fixed part that constitutes is located to the outside extension in cutter both ends, both ends are equipped with the gag lever post that wears to locate the portal frame crossbeam and can reciprocate in the backup pad, the fixed part at cutter both ends is worn the gag lever post at backup pad both ends respectively and is screwed with the locking screw, and the fixed part at cutter both ends is located between gag lever post and the locking screw and overlaps respectively and be equipped with compression spring.

5. The dual-purpose plastic bag sealing and cutting device according to claim 1, wherein: the first driving mechanism, the second driving mechanism and the third driving mechanism can be one of a cylinder, a hydraulic cylinder, a screw motor or a servo motor and synchronous wheel group combined structure.