A turnover vegetable packaging machine

Abstract

This utility model relates to the field of fresh produce packaging technology, specifically to a reusable vegetable packaging machine, including a frame, a drawstring box, a sealing box, and a conveying mechanism. The drawstring box, sealing box, and conveying mechanism are all mounted on the frame. The drawstring box and sealing box are hollow cubic boxes rigidly connected in sequence. The conveying mechanism is located inside the sealing box. When packaging is required, the two ends of the plastic wrap are clamped on a set of L-shaped clamps. The plastic wrap is spread out by rotation. When the single-sided rotation ends, the fresh produce to be packaged falls from above. During the fall, the plastic wrap is cut, and at the same time, the plastic wrap knocks open the drawstring tab at the entrance. The plastic wrap is fixed and closed as the fresh produce passes through the drawstring tab. After falling onto the conveying mechanism, it is conveyed to the sealing box. During the conveying process, the sealing plate, under the action of gravity, adheres the packaging film with the opening facing upwards to the fresh produce, completing the packaging.

Description

Technical Field

[0001] This utility model relates to the field of fresh produce packaging technology, specifically to a reusable vegetable packaging machine. Background Technology

[0002] Before fresh produce can be sold, staff need to manually wrap it with cling film, which is tedious and inefficient. Furthermore, existing semi-automatic packaging devices are inefficient and have complicated procedures. Mainstream fully automatic packaging devices are large, have complex structures, and produce large cavities after packaging, resulting in the packaged fresh produce taking up too much shelf space. Utility Model Content

[0003] The purpose of this utility model is to provide a turnover vegetable packaging machine, which aims to solve the technical problems of low efficiency of manual wrapping of fresh produce in supermarkets, and the complex structure and large cavity of mainstream semi-automatic / automatic packaging devices that occupy space after packaging.

[0004] To achieve the above objectives, this utility model provides a turnover vegetable packaging machine, including a frame, a drawstring box, a sealing box, and a conveying mechanism. The drawstring box, the sealing box, and the conveying mechanism are all mounted on the frame. The drawstring box and the sealing box are hollow cubic boxes and rigidly connected in sequence. The size of the drawstring box is larger than the size of the sealing box. The conveying mechanism is located inside the sealing box and is fixedly connected to the frame. One end of the conveying mechanism extends out of the sealing box and the other end extends into the drawstring box.

[0005] A rotating power shaft is provided at the rear end of the frame. The sealing box and the binding box can rotate around the rotating power shaft. Support wheels are installed at the four corner points on the side of the sealing box away from the binding box. A support wheel guide rail is provided at the end of the frame. The support wheel is slidably connected to the support wheel guide rail. A packaging film support is provided on the side of the frame. The direction of the packaging film support is parallel to the rotating power shaft.

[0006] The top of the sash box is provided with two fan-shaped guide rails, which are parallel to each other at both ends of the sash box. The arc length of the fan-shaped guide rails is greater than the side length of the sash box, and a conductive copper sheet is provided on the upper side of the fan-shaped guide rails.

[0007] The fan-shaped guide rail has beveled ends and a flat middle section.

[0008] The four sides of the rotating side of the swivel box are provided with openings. Each opening is provided with two sets of transverse swivel levers and two sets of longitudinal swivel levers. The transverse swivel levers and the longitudinal swivel levers are distributed perpendicularly and are arranged linearly inside. They are fixed only on the side connected to the swivel box.

[0009] The four edges on the rotating side of the swivel box are each provided with four electrically heated saw blades, and two L-shaped clamps are symmetrically arranged on the lower side of each electrically heated saw blade. The L-shaped clamps are provided with springs inside.

[0010] The sealing box contains four sealing plates, each with a square hole. The tail of each sealing plate is fixed to the edge of the rotating side of the sealing box, and the sealing plate body can swing with gravity.

[0011] This utility model provides a turnover vegetable packaging machine, including a frame, a drawstring box, a sealing box, and a conveying mechanism. The drawstring box, sealing box, and conveying mechanism are all mounted on the frame. The drawstring box and sealing box are hollow cubic boxes and rigidly connected in sequence. The conveying mechanism is located inside the sealing box. When packaging is required, the two ends of the plastic wrap are clamped on a set of L-shaped clamps. The plastic wrap is spread out by the rotation of the motor. When the rotation on one side ends, the clamps on the plastic wrap loosen. The other set of L-shaped clamps gradually closes in contact with the fan-shaped guide rail as the rotation ends, and completely clamps the plastic wrap at the end of this rotation. At this time, the fresh produce to be packaged falls from above. During the fall, the plastic wrap is cut, and at the same time, the plastic wrap knocks open the drawstring tab at the entrance. The plastic wrap is fixed and closed as the fresh produce passes through the drawstring tab. After falling onto the conveying mechanism, it is conveyed to the sealing box. During the conveying process, the sealing plate adheres the opening-up packaging film to the fresh produce under the action of gravity, completing the packaging. This invention achieves automatic sealing and packaging of fresh produce through a simple structure, overcoming the shortcomings of existing equipment. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a structural schematic diagram of a reusable vegetable packaging machine according to this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of this utility model after the fan-shaped track has been removed.

[0015] Figure 3 This is a schematic diagram showing the open state of the horizontal latch lever on one side in this utility model.

[0016] Figure 4 This is a schematic diagram of the rear view structure of this utility model.

[0017] 1-Frame, 2-Sealing box, 3-Sealing box, 4-Conveying mechanism, 5-Rotating power shaft, 6-Packaging film support, 7-Fan-shaped guide rail, 8-Conductive copper sheet, 9-Transverse sealing lever, 10-Vertical sealing lever, 11-Electrically heated serrated blade, 12-L-shaped clamp, 13-Sealing plate, 14-Support wheel, 15-Support wheel guide rail. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0019] Please see Figures 1 to 4 This utility model provides a turnover vegetable packaging machine, including a frame 1, a drawstring box 2, a sealing box 3, and a conveying mechanism 4. The drawstring box 2, the sealing box 3, and the conveying mechanism 4 are all mounted on the frame 1. The drawstring box 2 and the sealing box 3 are hollow cubic boxes and rigidly connected in sequence. The size of the drawstring box 2 is larger than the size of the sealing box 3. The conveying mechanism 4 is located inside the sealing box 3 and is fixedly connected to the frame 1. One end of the conveying mechanism 4 extends out of the sealing box 3 and the other end extends into the drawstring box 2.

[0020] A rotating power shaft 5 is provided at the rear end of the frame 1. The sealing box 2 and the sealing box 3 can rotate around the rotating power shaft 5. Support wheels are installed at the four corner points of the sealing box 3 on the side away from the sealing box 2. A support wheel guide rail is provided at the end of the frame 1. The support wheel is slidably connected to the support wheel guide rail. A packaging film support 6 is provided on the side of the frame 1. The direction of the packaging film support 6 is parallel to the rotating power shaft 5.

[0021] In this embodiment, the contact between the support wheel and the support wheel guide rail provides support for the sealing box 2 and the sealing box 3, forming a two-point support with the rotating power shaft 5 to prevent bending deformation.

[0022] Two fan-shaped guide rails 7 are provided above the sash box 2. The two fan-shaped guide rails 7 are parallel to each other at both ends of the sash box 2. The arc length of the fan-shaped guide rails 7 is greater than the side length of the sash box 2. A conductive copper sheet 8 is provided on the upper side of the fan-shaped guide rails 7.

[0023] The fan-shaped guide rail 7 has beveled ends and a flat middle section.

[0024] The four sides of the rotating side of the swivel box 2 are provided with openings. Each opening is provided with two sets of transverse swivel levers 9 and two sets of longitudinal swivel levers 10. The transverse swivel levers 9 and the longitudinal swivel levers 10 are distributed perpendicularly. The transverse swivel levers 9 and the longitudinal swivel levers 10 are arranged linearly inside and are fixed only on the side connected to the swivel box 2.

[0025] Four electrically heated saw blades 11 are respectively provided on the four edges of the rotating side of the clamp box 2. Two L-shaped clips 12 are symmetrically arranged on the lower side of each electrically heated saw blade 11, and springs are provided inside the L-shaped clips 12.

[0026] The sealing box 3 is equipped with four sealing plates 13. Each sealing plate 13 has a square hole and its tail is fixed to the edge of the rotating side of the sealing box 3. The main body of the sealing plate 13 can swing with gravity.

[0027] In this embodiment, the packaging film holder 6 is used to store the plastic wrap roll. The L-shaped clamp 12 is used to clamp the plastic wrap, and it is closed by the pushing of the fan-shaped guide rail 7 and opened by the internal spring.

[0028] The conductive copper sheet 8 is used to energize the power supply and device, providing temporary power to heat components such as the electrically heated serrated blade 11 and the drawstring flap. During the closing process, the horizontal drawstring flap 9 and the vertical drawstring flap 10 heat and shape the cling film, causing the opening of the packaging film to face upwards and wrap around the fresh food.

[0029] The following provides further explanation in conjunction with the packaging process:

[0030] In this embodiment, the L-shaped clips are divided into two categories based on their operating sequence, referred to as clip A and clip B. Clip A is the clip that clamps the plastic wrap first, and clip B is the clip that clamps the plastic wrap later. Every time the device rotates 90°, clip B becomes clip A relative to the clip that is about to clamp the plastic wrap, while the clip that is about to clamp the plastic wrap becomes clip B.

[0031] At the beginning, clip A clamps both ends of the plastic wrap;

[0032] The motor drives the rotating power shaft to rotate via chain drive, which in turn causes the sealing box and the packing box to rotate clockwise, thus spreading out the plastic wrap.

[0033] During the rotation, clamp A remains in contact with the fan-shaped guide rail, keeping it closed to continuously clamp the plastic wrap and causing it to spread out. At the end of this rotation, clamp A loosens its grip on the plastic wrap.

[0034] As this rotation nears its end, clamp B begins to contact the fan-shaped guide rail, gradually closing and fully clamping the plastic wrap at the end of this rotation.

[0035] As this rotation is about to end, the contacts on the packaging machine make initial contact with the conductive copper sheet, connecting the circuits of the electrically heated sawtooth strip, the horizontal and vertical ferrule levers, the sealing plate, and the conveying mechanism, so that they begin to heat up and move respectively.

[0036] Specifically, components that require power should be energized during appropriate operating periods using a contact-type power supply.

[0037] The conductive components of the power supply end (frame) are conductive copper sheets on the fan-shaped guide rail, and the conductive elements of the power receiving end (heating components on the sealing box and the packing box, as well as the conveyor belt) are conductive contacts on one side of the packing box (next to the L-shaped clamp, a total of 4).

[0038] When the device is running, the conductive contacts come into contact with the conductive copper sheet as the housing rotates, connecting the heating resistor circuits in the saw blade, the binding plate, and the sealing plate on one side of the conductive contacts. This generates heat, causing the conveyor belt motor to operate. After the contact is released, the circuit is broken.

[0039] The copper sheet is approximately connected to the power source, and the copper sheet and the contacts form a local circuit switch.

[0040] At most one of the four contacts can be in contact with the copper sheet at any given time. The circuits with the receiving end of the four contacts are independent (except for the conveyor belt motor), meaning that only the part of the circuit that needs power is connected at each contact.

[0041] Fresh produce that needs packaging falls from above, first contacting the plastic wrap. Under the impact of the fresh produce, the connecting end of the plastic wrap is cut off by a saw blade that has a certain temperature.

[0042] As the fresh food continues to fall, the grip of clip A loosens, allowing the plastic wrap to easily detach. Thus, the fresh food, along with the plastic wrap, falls downwards, breaking open the lightweight drawstring at the entrance.

[0043] After the fresh food passes over the lightweight, tapered spatula, the spatula begins to close. During this closing process, the plastic wrap also closes along with the spatula, making the plastic wrap bundle open upwards. Because the spatula has a certain temperature after being heated, the plastic wrap will be solidified to prevent it from opening automatically.

[0044] The conveyor sends the fresh produce to the sealing box. As the rotating power shaft rotates, the sealing plate adheres the packaging film with the opening facing upwards to the fresh produce under the action of gravity, completing the packaging and conveying it out of the packaging machine.

[0045] Furthermore, the packaging machine can be equipped with a structure that is adaptable to transportation and receiving, such as an extended frame or a steerable conveyor belt, making the device of this utility model more user-friendly.

[0046] The above description discloses only one or more preferred embodiments of the present utility model, and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A reusable vegetable packaging machine, characterized in that, The device includes a frame, a binding box, a sealing box, and a conveying mechanism. The binding box, the sealing box, and the conveying mechanism are all mounted on the frame. The binding box and the sealing box are hollow cubic boxes and rigidly connected in sequence. The size of the binding box is larger than the size of the sealing box. The conveying mechanism is located inside the sealing box and is fixedly connected to the frame. One end of the conveying mechanism extends out of the sealing box and the other end extends into the binding box. A rotating power shaft is provided at the rear end of the frame. The sealing box and the binding box can rotate around the rotating power shaft. Support wheels are installed at the four corner points on the side of the sealing box away from the binding box. A support wheel guide rail is provided at the end of the frame. The support wheel is slidably connected to the support wheel guide rail. A packaging film support is provided on the side of the frame. The direction of the packaging film support is parallel to the rotating power shaft.

2. The reusable vegetable packaging machine as described in claim 1, characterized in that, Two fan-shaped guide rails are provided above the sash box. The two fan-shaped guide rails are parallel to each other at both ends of the sash box. The arc length of the fan-shaped guide rails is greater than the side length of the sash box. Conductive copper sheets are provided on the upper side of the fan-shaped guide rails.

3. The reusable vegetable packaging machine as described in claim 2, characterized in that, The fan-shaped guide rail has beveled ends and a flat middle section.

4. The reusable vegetable packaging machine as described in claim 3, characterized in that, The four sides of the rotating side of the swivel box are provided with openings. Each opening is provided with two sets of transverse swivel levers and two sets of longitudinal swivel levers. The transverse swivel levers and the longitudinal swivel levers are distributed perpendicularly. The transverse swivel levers and the longitudinal swivel levers are arranged linearly inside and are fixed only on the side connected to the swivel box.

5. The reusable vegetable packaging machine as described in claim 4, characterized in that, Four electrically heated saw blades are respectively provided on the four edges of the rotating side of the swivel box. Two L-shaped clamps are symmetrically arranged on the lower side of each electrically heated saw blade, and springs are provided inside the L-shaped clamps.

6. The reusable vegetable packaging machine as described in claim 5, characterized in that, The sealing box contains four sealing plates, each with a square hole. The tail of each sealing plate is fixed to the edge of the rotating side of the sealing box, and the sealing plate body can swing with gravity.

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