CN217706592U

CN217706592U - Wrapping bag side constriction device

Info

Publication number: CN217706592U
Application number: CN202121474275.0U
Authority: CN
Inventors: 陈旭东; 王克; 詹传贤
Original assignee: Zhejiang Mingbo Machinery Co ltd
Current assignee: Zhejiang Mingbo Machinery Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-11-01
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses the innovation provides a wrapping bag side constriction device that can contract with the both sides limit of hem bag. This kind of wrapping bag side constriction device is including mount pad, first shrink pole and second shrink pole, its characterized in that: the mounting base is provided with a first support, the first support is rotatably connected with a first rotating shaft, the first contraction rod is connected to one end of the first rotating shaft, and the other end of the first rotating shaft is connected with a first swing arm. The packaging bag side edge shrinking device can shrink the two side edges of the folded bag through the relative motion of the first shrinking rod and the second shrinking rod, so that the neat and attractive appearance of the packaging bag is guaranteed.

Description

Wrapping bag side constriction device

Technical Field

The utility model relates to a food packaging machinery, concretely relates to last constriction device who is used for wrapping bag both sides limit shrink of packagine machine.

Background

There is a hemmed bag on the market, which has hems on both sides, as shown in fig. 3, and the mouth of the hemmed bag is opened to form a square shape, and the bag can hold more articles than a conventional flat bag. A packaging machine for packaging food products using such a gusseted bag has been developed on the market. However, this packaging machine has a problem after packaging the material: that is, the package may bulge outward (i.e., fold inward) on both sides of the package, resulting in an unattractive appearance of the package.

Disclosure of Invention

In view of the defects existing in the prior art, the utility model discloses the innovation provides a wrapping bag side constriction device that can contract the both sides limit of hem bag.

This kind of wrapping bag side constriction device is including mount pad, first shrink pole and second shrink pole, its characterized in that: the mounting seat is provided with a first support, a first rotating shaft is rotatably connected to the first support, the first contraction rod is connected to one end of the first rotating shaft, and the other end of the first rotating shaft is connected with a first swing arm; the mounting seat is provided with a second support, the second support is rotatably connected with a second rotating shaft, the second contraction rod is connected to one end of the second rotating shaft, and the other end of the second rotating shaft is connected with a second swing arm; a tension spring for driving the first contraction rod and the second contraction rod to be separated is connected between the first swing arm and the second swing arm; the top of mount pad is equipped with the effect piece, the effect piece is connected with the shrink power supply transmission that the drive effect piece reciprocated, the effect piece can order about first swing arm and second swing arm and rotate and make first shrink pole and second shrink pole draw close.

The first swing arm is provided with a first stress wheel, the second swing arm is provided with a second stress wheel, and the acting element acts on the first stress wheel and the second stress wheel.

The mounting base is provided with a guide rail, the first support and the second support are arranged on the guide rail in a sliding mode, the mounting base is provided with an adjusting screw, the adjusting screw is provided with a forward thread section and a reverse thread section, the first support is in threaded connection with the forward thread section of the adjusting screw, and the second support is in threaded connection with the reverse thread section of the adjusting screw.

The mounting seat is connected on the rotating shaft, and the rotating shaft is in transmission connection with a power source for driving the rotating shaft to rotate.

According to the utility model provides a pair of wrapping bag side constriction device, through the relative motion of first shrink pole and second shrink pole, can contract the both sides limit of hem bag to the appearance of guaranteeing the wrapping bag is neat pleasing to the eye.

Drawings

Fig. 1 is a perspective view 1 of the present invention;

fig. 2 is a perspective view 2 of the present invention;

fig. 3 is a schematic view of a gusseted bag.

Detailed Description

As shown in fig. 1 and 2, the side shrinking device for the packing bag comprises an installation seat 1, a first shrinking rod 2 and a second shrinking rod 3, and two sides of the folded bag can be shrunk by the relative movement of the first shrinking rod 2 and the second shrinking rod 3.

In order to drive the first contraction rod 2 and the second contraction rod 3 to move, the utility model is provided with a first support 6 on the mounting seat 1, the first support 6 is rotatably connected with a first rotating shaft 4, the first contraction rod 2 is connected with one end of the first rotating shaft 4, and the other end of the first rotating shaft 4 is connected with a first swing arm 11; a second support 7 is arranged on the mounting seat 1, a second rotating shaft 5 is rotatably connected to the second support 7, a second contraction rod 3 is connected to one end of the second rotating shaft 5, and a second swing arm 12 is connected to the other end of the second rotating shaft 5; a tension spring 15 for driving the first contraction rod 2 and the second contraction rod 3 to be separated is connected between the first swing arm 11 and the second swing arm 12; an acting piece 8 is arranged above the mounting seat 1, the acting piece 8 is in transmission connection with a contraction power source 9 which drives the acting piece 8 to move up and down, and the acting piece 8 can drive a first swing arm 11 and a second swing arm 12 to rotate and enable the first contraction rod 2 and the second contraction rod 3 to be close to each other.

The working principle is as follows: when the telescopic device is in a normal state, the tension spring 15 pulls the first swing arm 11 and the second swing arm 12, so that the first contraction rod 2 and the second contraction rod 3 are in a separated state; when the hem bag needs to be contracted, the contraction power source 9 drives the action piece 8 to move downwards, the action piece 8 acts on the first swing arm 11 and the second swing arm 12 simultaneously, the first swing arm 11 and the second swing arm 12 overcome the tension of the tension spring 15 and rotate towards opposite directions, and therefore the first contraction rod 2 and the second contraction rod 3 start to be drawn close to each other to contract the two side edges of the hem bag.

The acting element 8 can act directly on the first swing arm 11 and the second swing arm 12, although the friction is relatively large and unstable. In order to reduce friction, noise reduction, stability is improved, the utility model discloses be equipped with first atress wheel 13 on first swing arm 11, be equipped with second atress wheel 14 on second swing arm 12, the effect 8 can be used in first atress wheel 13 and second atress wheel 14 simultaneously.

The width of hem bag has big or small branch, in order to be suitable for the packing of different width hem bags, distance between first shrink pole 2 and the second shrink pole 3 must be adjustable, for this reason the utility model discloses be equipped with guide rail 16 on mount pad 1, slide at first support 6 and second support 7 and establish on guide rail 16, be equipped with adjusting screw 10 on mount pad 1, adjusting screw 10 has forward screw thread section and reverse screw thread section, first support 6 and adjusting screw 10's forward screw thread section threaded connection, second support 7 and adjusting screw 10's reverse screw thread section threaded connection. When the adjustment is needed, the adjusting screw 10 is rotated, and the first support 6 and the second support 7 can realize relative movement or reverse movement, so that the adjustment of the distance is realized, and the packaging requirements of the folded bags with different widths are met.

Last, worth mentioning, for preventing to interfere, wait the wrapping bag after targetting in place, just let first shrink pole 2 and second shrink pole 3 get into this station, for this reason the utility model discloses connect mount pad 1 in pivot 17, and pivot 17 is connected with drive pivot 17 pivoted power supply transmission. When the packaging bag is in place, the power source drives the rotating shaft 17 to rotate, so that the first contraction rod 2 and the second contraction rod 3 are in place, and then two sides of the folded bag can be contracted. Of course, it is also possible to move from above and down into the station, as long as no interference occurs.

Claims

1. The utility model provides a wrapping bag side constriction device, is including mount pad (1), first shrink pole (2) and second shrink pole (3), its characterized in that: a first support (6) is arranged on the mounting seat (1), a first rotating shaft (4) is rotatably connected to the first support (6), the first contraction rod (2) is connected to one end of the first rotating shaft (4), and a first swing arm (11) is connected to the other end of the first rotating shaft (4); a second support (7) is arranged on the mounting seat (1), a second rotating shaft (5) is rotatably connected to the second support (7), the second contraction rod (3) is connected to one end of the second rotating shaft (5), and a second swing arm (12) is connected to the other end of the second rotating shaft (5); a tension spring (15) for driving the first contraction rod (2) and the second contraction rod (3) to be separated is connected between the first swing arm (11) and the second swing arm (12); action piece (8) is arranged above mounting seat (1), action piece (8) is in transmission connection with contraction power source (9) which drives action piece (8) to move up and down, action piece (8) can drive first swing arm (11) and second swing arm (12) to rotate and enables first contraction rod (2) and second contraction rod (3) to be close.

2. The side-shrinking apparatus for packing bag of claim 1, wherein: the first swing arm (11) is provided with a first stress wheel (13), the second swing arm (12) is provided with a second stress wheel (14), and the acting piece (8) acts on the first stress wheel (13) and the second stress wheel (14).

3. The side-shrinking apparatus for packing bag of claim 1, wherein: be equipped with guide rail (16) on mount pad (1), first support (6) all slide with second support (7) and establish on guide rail (16), be equipped with adjusting screw (10) on mount pad (1), adjusting screw (10) have forward thread section and reverse thread section, the forward thread section threaded connection of first support (6) and adjusting screw (10), the reverse thread section threaded connection of second support (7) and adjusting screw (10).

4. The side-shrinking apparatus for packing bag of claim 1, wherein: the mounting seat (1) is connected to the rotating shaft (17), and the rotating shaft (17) is in transmission connection with a power source for driving the rotating shaft (17) to rotate.