Bag opening expanding device for vacuum packaging machine

Abstract

The utility model discloses a bag mouth opening device for a vacuum packaging machine, and relates to the technical field of bag mouth opening devices, the bag mouth opening device comprises a vacuum packaging machine body, and one side of the vacuum packaging machine body is provided with an opening mechanism used for opening a bag mouth of a vacuum packaging bag bidirectionally. The motor is started to drive the connecting column and the two worms to rotate and drive the two worm wheels to rotate, the two fixing columns and the two bidirectional screw rods rotate along with the motor, the two sliding plates are driven to move away from each other, the two supporting rods are driven to move away from each other along with the motor, and the vacuum packaging bag is stably opened; when the vacuum packaging bag opening device is used, the vacuum packaging bag can be filled with objects when making contact with the bottom of a vacuum packaging bag, the object placing plate supports the vacuum packaging bag and the objects in the vacuum packaging bag, and therefore the vacuum packaging bag opening is rapidly opened, objects can be conveniently filled into the vacuum packaging bag, the object filling efficiency is improved, operation is easy, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of bag opening opening devices, in particular to a bag opening opening device used in a vacuum packaging machine. Background Art

[0002] A vacuum packaging machine is a device that can automatically extract the air from a packaging bag and complete the sealing process after reaching a predetermined vacuum degree. There are three types of vacuum packaging machines: bag packaging machines, deep-drawing packaging machines, and skin packaging machines. It has the functions of vacuuming, inflating, and sealing in one go, and is suitable for food packaging that prevents oxidation, mildew, and moisture. The vacuum packaging machine integrates electrical technology, electronic technology, and mechanical technology, and is controlled as a whole by a time controller. Its working principle is to remove the air from the package in a sealed chamber, causing the package to shrink in volume under normal atmospheric pressure to ensure that the package has a certain vacuum degree.

[0003] In the prior art, when the vacuum packaging machine is in use, when sealing articles, the articles need to be placed in the vacuum packaging bag in advance. When filling the articles, the staff needs to open the vacuum packaging bag, put a small amount of articles in the vacuum packaging bag in advance, use the gravity of the articles to press the bottom of the vacuum packaging bag on the workbench, and then open the vacuum packaging bag with one hand, and put the articles into the vacuum packaging bag one by one. Therefore, the efficiency of filling the vacuum packaging bag with articles is not high. In addition, during the filling process, if the vacuum packaging bag is blown by wind, the bag opening at the other end will be close to the bag opening opened by the hand because the vacuum packaging bag is light in texture, which will affect the filling of the articles and reduce the filling speed of the articles.

[0004] For this purpose, a bag opening opening device for a vacuum packaging machine is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems raised in the above background technology. The utility model provides a bag opening opening device for a vacuum packaging machine.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A bag opening opening device for a vacuum packaging machine comprises a vacuum packaging machine body, one side of the vacuum packaging machine body is provided with an opening mechanism for opening a vacuum packaging bag in two directions, one side of the vacuum packaging machine body is provided with an auxiliary mechanism for supporting articles loaded in the vacuum packaging bag, the opening mechanism comprises a fixed shell, the fixed shell is installed on the left side of the vacuum packaging machine body, a U-shaped frame is installed on the left side of the fixed shell, two slide grooves are provided on the surface of the U-shaped frame, two bidirectional screws are rotatably installed inside the two slide grooves, and the two ends of the bidirectional screws are rotatably installed on the fixed shell and the U-shaped frame respectively, two slide plates are threadedly installed on the outer walls of the two bidirectional screws, and the slide plates are slidably installed on the inner walls of the two slide grooves.

[0008] Furthermore, the spreading mechanism also includes two fixed columns, which are rotatably mounted on a fixed shell and are mounted on the right side of the bidirectional screw. Worm gears are mounted on the outer walls of the two fixed columns. A connecting column is rotatably mounted in the fixed shell, two worms are mounted on the outer wall of the connecting column, and the worms are meshed with the worm gears. A motor is mounted on the front side of the connecting column, and the motor is mounted on the front side of the fixed shell.

[0009] Furthermore, support rods are installed at the bottom of the two slides, and the two support rods correspond to each other.

[0010] Furthermore, the two support rods are both covered with protective sleeves, and the protective sleeves are made of rubber material.

[0011] Furthermore, the auxiliary mechanism includes a bottom plate, which is installed on the left side of the vacuum packaging machine body, a cylinder is installed on the top of the bottom plate, and a storage plate is installed on the top of the cylinder.

[0012] Furthermore, the number of the cylinders is set to two and they are symmetrically distributed.

[0013] The beneficial effects of the utility model are as follows:

[0014] The utility model, through the arrangement of the bidirectional screw, the worm and the placement plate, first opens the vacuum package, sets it on the two support rods, starts the motor, drives the connecting column and the two worms to rotate, drives the two worm wheels to rotate, and the two fixed columns and the two bidirectional screws rotate accordingly, drives the two slide plates to move away from each other, and the two support rods move away from each other accordingly, so that the vacuum packaging bag is stably opened, and the cylinder is started to drive the placement plate to move upward to contact the bottom of the vacuum packaging bag, so that the vacuum packaging bag can be filled with articles, and the placement plate supports the vacuum packaging bag and the articles therein. When the articles are filled, they are taken out and placed in the vacuum packaging machine body for vacuum sealing, thereby realizing the rapid opening of the bag mouth of the vacuum packaging bag, facilitating the filling of articles therein, and improving the efficiency of article filling. The utility model is simple to operate and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the expansion mechanism of the utility model;

[0017] Figure 3 It is a partial structural schematic diagram of the propping mechanism of the utility model.

[0018] Figure numerals: 1. Vacuum packaging machine body; 2. Opening mechanism; 201. Fixed shell; 202. U-shaped frame; 203. Slide; 204. Bidirectional screw; 205. Slide plate; 206. Support rod; 207. Fixed column; 208. Worm gear; 209. Connecting column; 210. Worm; 211. Motor; 3. Auxiliary mechanism; 301. Bottom plate; 302. Cylinder; 303. Storage plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] like Figure 1-3 As shown, a bag opening opening device for a vacuum packaging machine comprises a vacuum packaging machine body 1, a stretching mechanism 2 for bidirectionally stretching the bag opening of a vacuum packaging bag is arranged on one side of the vacuum packaging machine body 1, an auxiliary mechanism 3 for supporting articles loaded in the vacuum packaging bag is arranged on one side of the vacuum packaging machine body 1, the stretching mechanism 2 comprises a fixed shell 201, the fixed shell 201 is installed on the left side of the vacuum packaging machine body 1, a U-shaped frame 202 is installed on the left side of the fixed shell 201, two slide grooves 203 are arranged on the surface of the U-shaped frame 202, two bidirectional screws 204 are rotatably installed inside the two slide grooves 203, and the two ends of the bidirectional screws 204 are rotatably installed on the fixed shell 201 and the U-shaped frame 202, and two slide plates 204 are threadedly installed on the outer walls of the two bidirectional screws 204 5, and the slide plate 205 is slidably installed on the inner walls of the two slide grooves 203. In this embodiment, when in use, first, the vacuum packaging is opened, the supporting parts in the opening mechanism 2 are placed in the vacuum packaging bag, and the driving parts of the opening mechanism 2 are started to drive the two bidirectional screws 204 to rotate, drive the two slide plates 205 to move away from each other, and the supporting parts in the opening mechanism 2 move away from each other accordingly, so as to open the vacuum packaging bag, and then start the auxiliary mechanism 3 to contact the bottom of the vacuum packaging bag, so as to fill the vacuum packaging bag with articles. When the articles are filled, they are taken out and placed in the vacuum packaging machine body 1 for vacuum sealing, so as to realize the rapid opening of the bag mouth of the vacuum packaging bag, facilitate the filling of articles, improve the efficiency of article filling, simple operation, and strong practicality.

[0025] like Figure 1-3As shown, the spreading mechanism 2 also includes two fixed columns 207, which are rotatably mounted on the fixed shell 201, and the fixed columns 207 are mounted on the right side of the bidirectional screw 204. Worm wheels 208 are mounted on the outer walls of the two fixed columns 207. A connecting column 209 is rotatably mounted in the fixed shell 201, and two worms 210 are mounted on the outer wall of the connecting column 209, and the worms 210 are meshed with the worm wheels 208. A motor 211 is mounted on the front side of the connecting column 209, and the motor 211 is mounted on the front side of the fixed shell 201. In this embodiment, the motor 211 is started to drive the connecting column 209 and the two worms 210 to rotate, driving the two worm wheels 208 to rotate, and the two fixed columns 207 and the two bidirectional screws 204 rotate accordingly, thereby providing stable power to the two bidirectional screws 204.

[0026] like Figure 2-3 As shown, support rods 206 are installed at the bottom of the two slides 205, and the two support rods 206 correspond to each other. In this embodiment, the two slides 205 move away from each other, driving the two support rods 206 to move away from each other. Due to the corresponding arrangements, the vacuum packaging bag is stably opened.

[0027] like Figure 2-3 As shown, both support rods 206 are provided with protective covers made of rubber. In this embodiment, by providing rubber protective covers on the two support rods 206, it is possible to avoid the vacuum packaging bag from being rigidly stretched open and causing damage to the vacuum packaging bag.

[0028] like Figure 1 As shown, the auxiliary mechanism 3 includes a bottom plate 301, which is installed on the left side of the vacuum packaging machine body 1. A cylinder 302 is installed on the top of the bottom plate 301, and a storage plate 303 is installed on the top of the cylinder 302. In this embodiment, the cylinder 302 is stably supported by the bottom plate 301, and the cylinder 302 is started to drive the storage plate 303 to move upward, contact the bottom of the vacuum packaging bag, and support the items filled in the vacuum packaging bag.

[0029] like Figure 1 As shown, the number of the cylinders 302 is set to two and they are symmetrically distributed. In this embodiment, the storage plate 303 is stably driven and supported by the number and orientation of the cylinders 302 .

[0030] In summary, when in use, first open the vacuum packaging, place the supporting parts in the opening mechanism 2 in the vacuum packaging bag, start the driving parts of the opening mechanism 2, drive the two bidirectional screws 204 to rotate, drive the two slides 205 to move away from each other, and the supporting parts in the opening mechanism 2 move away from each other, so as to open the vacuum packaging bag, and then start the auxiliary mechanism 3 to contact the bottom of the vacuum packaging bag, so as to fill the vacuum packaging bag with articles. When the articles are filled, take them out and place them in the vacuum packaging machine body 1 for vacuum sealing, so as to realize the rapid opening of the vacuum packaging bag, facilitate the filling of articles, improve the efficiency of article filling, simple operation, strong practicality, start the motor 211, drive the connecting column 209 and the two worms 21 0 rotates, driving the two worm gears 208 to rotate, and the two fixed columns 207 and the two bidirectional screws 204 rotate accordingly, thereby providing stable power to the two bidirectional screws 204, and the two slide plates 205 move away from each other, driving the two support rods 206 to move away from each other. Due to the corresponding arrangements, the vacuum packaging bag is stably opened, and the arrangement of rubber protective sleeves on the two support rods 206 can avoid rigid opening of the vacuum packaging bag and causing damage to it. The bottom plate 301 stably supports the cylinder 302, and the cylinder 302 is started to drive the storage plate 303 to move upward and contact the bottom of the vacuum packaging bag to support the items filled in the vacuum packaging bag. The number and orientation of the cylinder 302 are set to stably drive and support the storage plate 303.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A bag opening device for a vacuum packaging machine, comprising a vacuum packaging machine body (1), characterized in that: A spreading mechanism (2) for spreading the opening of the vacuum packaging bag in two directions is arranged on one side of the vacuum packaging machine body (1), and an auxiliary mechanism (3) for supporting the articles loaded in the vacuum packaging bag is arranged on one side of the vacuum packaging machine body (1). The spreading mechanism (2) comprises a fixed shell (201), which is mounted on the left side of the vacuum packaging machine body (1). A U-shaped frame (202) is mounted on the left side of the fixed shell (201), and two slide grooves (203) are arranged on the surface of the U-shaped frame (202). Two bidirectional screw rods (204) are rotatably mounted inside the two slide grooves (203), and two ends of the bidirectional screw rods (204) are rotatably mounted on the fixed shell (201) and the U-shaped frame (202), respectively. Two slide plates (205) are threadedly mounted on the outer walls of the two bidirectional screw rods (204), and the slide plates (205) are slidably mounted on the inner walls of the two slide grooves (203).

2. A bag opening device for a vacuum packaging machine according to claim 1, characterized in that: The spreading mechanism (2) further comprises two fixed columns (207), the two fixed columns (207) being rotatably mounted on the fixed shell (201), and the fixed columns (207) being mounted on the right side of the bidirectional screw (204), the outer walls of the two fixed columns (207) being both mounted with worm wheels (208), a connecting column (209) being rotatably mounted in the fixed shell (201), two worms (210) being mounted on the outer walls of the connecting column (209), and the worms (210) being meshed with the worm wheels (208), a motor (211) being mounted on the front side of the connecting column (209), and the motor (211) being mounted on the front side of the fixed shell (201).

3. A bag opening device for a vacuum packaging machine according to claim 2, characterized in that: The bottoms of the two slide plates (205) are both provided with support rods (206), and the two support rods (206) correspond to each other.

4. The bag opening device for a vacuum packaging machine according to claim 3, characterized in that: The two support rods (206) are both covered with protective sleeves, and the protective sleeves are made of rubber material.

5. The bag opening device for a vacuum packaging machine according to claim 1, characterized in that: The auxiliary mechanism (3) comprises a bottom plate (301), the bottom plate (301) is installed on the left side of the vacuum packaging machine body (1), a cylinder (302) is installed on the top of the bottom plate (301), and a storage plate (303) is installed on the top of the cylinder (302).

6. The bag opening device for a vacuum packaging machine according to claim 5, characterized in that: The number of the cylinders (302) is set to two and they are symmetrically distributed.

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