Wrapping and corner folding device

Abstract

The utility model discloses a wrapping corner folding device which comprises a pressing device for pressing packaging paper on the front side and the rear side of a packaged object and pushing devices for pushing the pressed packaging paper from the left side and the right side, and the pushing devices are arranged on the front side and the rear side of the packaged object. The wrapping and beveling device can be used for beveling packaging paper at the two ends of a rectangular object in the length direction, and is high in beveling operation efficiency and good in beveling flatness.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a wrapping corner folding device. Background Technology

[0002] Wrapping refers to a packaging method that uses flexible materials such as paper, plastic film, aluminum foil, and composite film to cover items. One wrapping method for rectangular items is shown in the instruction manual. Figure 1 As shown, it includes the following steps:

[0003] 1) Place the rectangular item on a rectangular piece of wrapping paper, and then fold the wrapping paper over the item from both sides (i.e., both sides in the width direction of the rectangular item);

[0004] 2) Fold the wrapping paper at the length end of the rectangular item inward to form a sharp corner;

[0005] 3) Apply adhesive to the sharp corners;

[0006] 4) Fold the pointed corner upwards and stick it to the top.

[0007] In existing technologies, the packaging process for the aforementioned rectangular items is done manually, resulting in low production efficiency. To achieve automated wrapping, it is necessary to solve the packaging challenge of folding the end wrapping paper inward to form sharp corners. Utility Model Content

[0008] In view of this, the present invention provides a wrapping corner folding device to solve the packaging problem of folding the wrapping paper at the length end of the packaged item inward to form a sharp corner.

[0009] The present invention includes a pressing device for pressing down the packaging paper on the front and back sides of the packaged item and a pushing device for pushing the pressed packaging paper from the left and right sides. The pushing devices are arranged on the front and back sides of the packaged item.

[0010] Furthermore, the pressure device includes a bracket and an air jet for blowing air downwards onto the front and rear sides of the packaged item, or the pressure device includes a bracket, a first linear actuator vertically mounted on a support frame, and a pressure rod that moves under the drive of the first linear actuator.

[0011] Furthermore, the jet is an electric air valve or a jet nozzle.

[0012] Furthermore, the pusher includes a fixedly arranged slide rail seat, a guide rail disposed on the slide rail seat, a slider that slides with the guide rail, a horizontal plate disposed on the slider, a finger cylinder connected to the horizontal plate, a pressure head disposed on the fingertip of the finger cylinder, and a reset spring for driving the finger cylinder to reset.

[0013] Alternatively, the pusher may include a fixedly arranged support, a second linear actuator horizontally arranged on the support, and a pressure head driven by the second linear actuator.

[0014] The pressure head is a cylindrical roller or an arc-shaped pressure plate.

[0015] Furthermore, the wrapping corner-folding device also includes a corner-folding shaper, which includes a flap located below the pressure head and a rotary driver for driving the flap to flip up and down.

[0016] The beneficial effects of this utility model are:

[0017] This utility model of a wrapping and corner-folding device can fold the corners of the wrapping paper at both ends of a rectangular item along its length, and the corner-folding operation is highly efficient and produces a smooth fold. Attached Figure Description

[0018] Figure 1 This is a flowchart of the manual wrapping process;

[0019] Figure 2 A three-dimensional schematic diagram of the wrapping corner folding device arranged on the packaging line;

[0020] Figure 3 A schematic diagram of the first embodiment of the wrapping corner folding device;

[0021] Figure 4 This is a schematic diagram of a second implementation of the wrapping corner folding device. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] In this embodiment, the wrapping corner folding device includes a presser that presses down the wrapping paper on the front and rear sides of the packaged item and a pusher that pushes the pressed wrapping paper from the left and right sides. The pushers are arranged on the front and rear sides of the packaged item.

[0024] In this embodiment, the pressurizer includes a bracket 1 and a jet 2 for blowing air downwards onto the front and rear sides of the packaged item. The jet 2 can be an electric air valve or a jet nozzle. The electric air valve can be connected to an air source via a pipeline, and downward airflow can be achieved by controlling the electric air valve; alternatively, the jet nozzle can be connected to an air source (which can be an air pump) via a pipeline, and downward airflow can be achieved by controlling the air source.

[0025] In this embodiment, the pusher includes a fixed slide rail seat 3, a guide rail 4 disposed on the slide rail seat, a slider 5 that slides with the guide rail, a horizontal plate 6 disposed on the slider, a finger cylinder 7 connected to the horizontal plate, a pressure head 8 disposed on the fingertip of the finger cylinder, and a reset spring 9 for driving the finger cylinder to reset.

[0026] The reset spring 9 can be a tension spring or a compression spring, and the installation method of the reset spring 9 can be determined according to the selected spring type. For example, in this embodiment, the reset spring 9 is a tension spring, one end of which is connected to the horizontal plate 6, and the other end of which is connected to the connecting plate 10, which is fixed to the front end of the guide rail 4. The pressure head 8 can be a cylindrical roller or an arc-shaped pressure plate, and using a cylindrical roller results in better folding flatness. Of course, in specific implementations, the pusher in this embodiment may also use a fixed arrangement for the finger cylinder 7, but the structure in this embodiment, where the finger cylinder 7 can reciprocate along the slide rail, can improve the flatness of the end corner folding and result in better folding quality.

[0027] In practice, the pressure device is located above the end-folding station, while the pushers are arranged on both sides of the end-folding station. After the packaged item arrives at the end-folding station via the conveyor, the automatic control device first controls the air jets to blow air downwards onto the packaging paper on the front and back sides of the packaged item. Then, it controls the fingers of the finger cylinders to close inwards. During the finger folding process, the pressure head pushes inwards from both sides simultaneously, thereby folding the packaging paper at the end inwards, thus completing the end-folding.

[0028] Of course, in different embodiments, the presser and pusher may also take other forms. For example... Figure 4 As shown, the presser includes a bracket 11, a first linear actuator 12 vertically mounted on the support frame, and a pressure rod 13 that moves under the drive of the first linear actuator. The presser includes a fixed support 14, a second linear actuator 15 horizontally mounted on the support, and a pressure head 8 driven by the second linear actuator; the pressure head is a cylindrical roller or an arc-shaped pressure plate. The first linear actuator 12 and the second linear actuator 15 can be cylinders, hydraulic cylinders, or electric cylinders, etc. By driving the pressure rod 13 downward with the first linear actuator 12, the end of the pressure rod can push down on the packaging paper at the end of the packaged item; by driving the pressure head 8 to translate with the second linear actuator 15, the pressed packaging paper can be folded inward to form an end corner.

[0029] As an improvement to the above embodiment, the wrapping corner folding device further includes a corner retainer, which includes a flap 16 located below the pressure head and a rotary driver 17 for driving the flap to flip up and down. The rotary driver can be an electric motor or a pneumatic motor, etc. After the pressure head pushes the wrapping paper to fold the corner, the rotary driver 17 drives the flap 16 to flip upward and block the outside of the corner. Then the pressure head returns to its original position and leaves the corner. Due to the blocking pressure of the flap 16, the folded corner is prevented from loosening and unfolding.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A wrapping corner folding device, characterized in that: It includes a presser that presses down the packaging paper on the front and back sides of the packaged item, and a pusher that pushes the pressed packaging paper from the left and right sides. The pushers are arranged on the front and back sides of the packaged item.

2. The wrapping corner folding device according to claim 1, characterized in that: The presser includes a bracket and a jet for blowing air downwards onto the front and rear sides of the packaged item, or the presser includes a bracket, a first linear actuator vertically mounted on a support frame, and a pressure bar that moves under the drive of the first linear actuator.

3. The wrapping corner folding device according to claim 2, characterized in that: The jet is an electric air valve or a jet nozzle.

4. The wrapping corner folding device according to claim 1, characterized in that: The pusher includes a fixed slide rail seat, a guide rail on the slide rail seat, a slider that slides with the guide rail, a horizontal plate on the slider, a finger cylinder connected to the horizontal plate, a pressure head on the fingertip of the finger cylinder, and a reset spring for driving the finger cylinder to reset. Alternatively, the pusher may include a fixedly arranged support, a second linear actuator horizontally arranged on the support, and a pressure head driven by the second linear actuator. The pressure head is a cylindrical roller or an arc-shaped pressure plate.

5. The wrapping corner folding device according to claim 1, characterized in that: It also includes a corner retainer, which includes a flap located below the pressure head and a rotary driver for driving the flap to flip up and down.

Images