CN212099501U - Automatic cartoning equipment and its claw mechanism - Google Patents

Abstract

The utility model relates to an automatic boxing device and a shifting claw mechanism thereof. The shifting claw mechanism is arranged on a path where a box body is loaded into an outer box sleeve, and is used for propping up the outer box sleeve when the box body is loaded. The shifting claw mechanism comprises: A mounting frame, at least two shifting claws and an elastic member, the guiding surface of the shifting claw has a lead-in end and a supporting end, the shifting claw can be rotated relative to the mounting frame to a first position and a second position, when the shifting claw rotates to the first position, The box body can slide against the guide surface along the lead-in end, and drive the claw to rotate to the second position. When the claw rotates to the second position, the support end supports the outer box sleeve, so that the box body can be supported along the guide surface. The end is moved into the outer casing, and the elastic piece is used to drive the shifting claw to move back to the first position. In the automatic cartoning equipment and its claw mechanism of the utility model, when the box body is pushed into the outer box sleeve, the claw pushes the outer box sleeve, so as to have a better guiding effect and prevent the outer box sleeve from being squeezed by the box body deformation, thereby improving packaging efficiency and packaging quality.

Description

Automatic cartoning equipment and its claw mechanism

technical field

The utility model relates to the technical field of box body packaging, in particular to an automatic box packing device and a claw mechanism thereof.

Background technique

With the gradual improvement of people's material life, people have a higher and higher demand for the packaging style of consumer goods. For example, in the packaging of electronic products such as mobile phones, earphones, lamps, etc., in addition to the box body of the packaging product, usually in the box body The external repackaging of the outer box cover is used to enrich the packaging effect and improve the quality of product packaging. However, at present, the box body is usually put into the outer box cover manually, which is inefficient. When entering the outer box cover, it is easy to be inaccurate in docking, and the box body squeezes and deforms the outer box cover, which seriously affects the packaging quality and the efficiency of automatic packaging.

Utility model content

Based on this, it is necessary to provide an automatic cartoning device and its claw mechanism that can improve packaging efficiency and packaging quality.

The present application provides a claw mechanism, which is arranged on the path where the box body is loaded into the outer box sleeve, and is used for propping up the outer box sleeve when the box body is loaded. The claw mechanism includes:

an installation frame, which is arranged on the path where the box body is installed into the outer box sleeve, and the box body can move from one side of the installation frame to the other side along the direction of entering the outer box sleeve;

At least two claws are arranged opposite to the mounting frame, and the claws have a guide surface, and the guide surface is used to guide the box body into the outer box sleeve when the box body is loaded, and along the box body In the direction in which the body enters the outer casing, the guide surface has an introduction end and a support end, and the shifting claw can rotate relative to the mounting frame to a first position and a second position. When the shifting claw rotates to the first position In one position, the box body can slide against the guide surface along the introduction end, and drive the switch claw to rotate to the second position. When the switch claw rotates to the second position, the support The outer box sleeve is opened at the end so that the box body can be moved into the outer box sleeve from the support end along the guide surface;

The elastic member is used to drive the shifting claw to return to the first position when the box body leaves the shifting claw.

In one embodiment, the guide surface includes a first plane and a second plane, the first plane and the second plane are perpendicular to each other, and the position of the claw on the mounting frame is the same as that of the box body. Corresponding to the apex angle, when the box body is rotated to the second position by contacting the claw, the first plane and the second plane are respectively abutted against the sides at the apex corner of the box body, so that all the The supporting end abuts against the inner side surface of the outer box sleeve.

In one embodiment, the support end is in the shape of a sheet, the support end includes a first support sheet and a second support sheet that are vertically connected, the first plane is located on the first support sheet, the second support sheet The plane is located on the second support piece.

In one embodiment, a mounting block is provided on the mounting frame, the shifting claw is rotatably connected to the mounting block, and the rotation axis of the shifting claw relative to the mounting block is formed with the first plane The included angle is an acute angle.

In one embodiment, the rotation axis of the shifting claw relative to the mounting block forms an included angle of 45° with the vertical direction, and the rotation axis of the shifting claw relative to the mounting block is 45° from the first plane. °Included angle.

In one embodiment, the mounting frame includes at least two support columns, and the at least two support columns extend in a vertical direction, and the mounting block includes at least one inclined surface, the inclined surface and the dial The claw forms an included angle of 45° with respect to the rotation axis of the mounting block, and the side where the inclined surface of the mounting block is located is connected to the support column.

In one embodiment, the elastic member is disposed on the mounting block and abuts against a side of the claw facing away from the guide surface.

On the other hand, the present application also provides an automatic cartoning device including the above-mentioned claw mechanism.

In one embodiment, the automatic cartoning equipment further comprises:

The first conveying mechanism is used for conveying the box body;

The second feeding mechanism is used for conveying the outer box cover;

a box pushing mechanism for pushing the box body into the outer box cover;

The shifting claw mechanism is located at the output end of the box body pushed by the box pushing mechanism. When the box body passes through the shifting claw mechanism, the box body abuts the guide surface of the shifting claw and makes the The claw rotates to the second position relative to the mounting frame.

In one of the embodiments, an output mechanism is provided at the output end of the second feeding mechanism, and after the box body is loaded into the outer box sleeve, the output mechanism is used to package the outer box sleeve. box output.

The automatic cartoning device and its claw mechanism of the present utility model, the claw mechanism includes a mounting frame, a claw and an elastic piece, the claw can be rotated relative to the mounting frame, and can be elastically reset under the drive of the elastic piece, and the claw can be reset in the box. During the process of pushing the body into the outer box cover, the claws open the outer box cover to play a better guiding effect, and prevent the outer box cover from being squeezed and deformed by the box body, thereby improving the packaging efficiency and packaging quality.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, drawings of other embodiments can also be obtained according to these drawings without creative efforts.

1 is a schematic structural diagram of an automatic cartoning device according to an embodiment;

Fig. 2 is a schematic diagram of a partial enlarged view of the structure of the circle in Fig. 1;

3 is a schematic structural diagram of a claw mechanism of an automatic cartoning device according to an embodiment, and the figure schematically shows that the box body and the outer box sleeve are located on opposite sides of the claw mechanism;

FIG. 4 is a schematic diagram of the assembled state of the shifting pawl and the mounting block in the shifting pawl mechanism shown in FIG. 3;

5 is a schematic diagram of the exploded structure of the shifting claw and the mounting block in the shifting claw mechanism shown in FIG. 3;

Fig. 6 is another perspective schematic diagram of the disassembled structure of the shifting claw and the mounting block in the claw shifting mechanism shown in Fig. 3;

FIG. 7 is a front view of the shifting pawl mechanism shown in FIG. 4 , along the extending direction of the guide surface in the assembled state of the shifting pawl and the mounting block.

Detailed ways

In order to facilitate the understanding of the present utility model, the present utility model will be more fully described below with reference to the related drawings. The preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure is provided.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

Referring to Fig. 1 , an automatic cartoning device according to an embodiment of the present application includes a first feeding mechanism 10, a second feeding mechanism 20, a claw mechanism 40 and a box pushing mechanism 50.

Among them, the first feeding mechanism 10 is used to transport the box body A, so that the box body A is transferred to the box pushing mechanism 50; the second feeding mechanism 20 is used to transport the outer box cover B, so that the outer box cover B is placed in the packaging so that the box body A is pushed into the outer box sleeve B by the box push mechanism 50 .

It should be noted that the claw mechanism 40 is located at the output end of the box-pushing mechanism 50 that pushes the box body A, that is, the claw mechanism 40 is arranged on the path where the box body A is loaded into the outer box sleeve B. The claw mechanism 40 It is used to stretch the outer box cover B when the box body A is loaded.

Specifically, the claw mechanism 40 includes a mounting frame 43 , at least two claw 41 and an elastic member.

The mounting bracket 43 is arranged on the path where the box body A is loaded into the outer box cover B, and the box body A can move from one side of the mounting bracket 43 to the other side along the direction of entering the outer box cover B, that is, the mounting bracket 43 allows cassette A to pass through without interfering with entry of cassette A into outer cassette B. The structure of the mounting bracket 43 has various structural forms. For example, the mounting bracket 43 may be a rectangular frame, so as to reserve a window for the box body A to pass through. The mounting bracket 43 may also be a gantry, so that the box body A can pass through the mounting bracket 43 . The structural form of the mounting bracket 43 is not limited here, as long as the installation of the mounting bracket 43 does not interfere with the entry of the box body A into the outer box sleeve B, and can meet the installation requirements of the shifting claw 41 .

As shown in FIG. 2 and FIG. 3 , the shifting claw 41 is disposed opposite to the mounting bracket 43 . The claw 41 has a guide surface 410 for guiding the box body A into the outer box sleeve B when the box body A is loaded, and the guide surface 410 has an introduction end 411 in the direction of the box body A entering the outer box sleeve B and the support end 412, the claw 41 can be rotated to the first position and the second position relative to the mounting frame 43, when the claw 41 is rotated to the first position, the box body A can slide along the introduction end 411 and abut against the guide surface 410, And drive the claw 41 to rotate to the second position, when the claw 41 rotates to the second position, the support end 412 stretches the outer box cover B, so that the box body A can move from the support end 412 into the outer box cover B along the guide surface 410 . With this structure, before the box body A enters the outer box sleeve B, the box body A will press the shifting claw 41 so that the supporting end 412 on the shifting claw 41 will firstly open the outer box casing B, so that the box body A can move along the outer box body B. The guide surface 410 of the claw 41 enters the outer box cover B, so as to prevent the box body A and the outer box cover B from being misaligned and the outer box cover B being squeezed and deformed, and then using this structure, the packaging efficiency of the box body A can be improved and packaging quality.

In the above embodiment, the elastic member is used to drive the shifting claw 41 to return to the first position when the box body A leaves the shifting claw 41 . That is to say, when the claw 41 is not pressed by the box body A, the elastic member keeps the claw 41 in the first position, so that the box body A can slide against the guide surface 410 from the lead-in end 411, so as to push the box When the mechanism 50 continues to push the box body A, the box body A can enter the outer box body B which is opened by the support end 412 along the guide surface 410 .

In some embodiments, the number of the shifting claws 41 is 4, which are respectively set to correspond to the 4 corners of the outer box cover B, so that when the box body A passes the mounting frame 43, the outer wall of the box body A abuts against the 4 shifting claws The claws 41 and the 4 claws 41 open the 4 top corners of the outer box cover B respectively, so as to completely open the outer box cover B, improve the smoothness of the box body A entering the outer box cover B, and reduce the box body A and the outer box cover B. If the alignment is not accurate, the outer box cover B is squeezed and deformed.

As shown in FIG. 1 again, the output end of the second feeder 20 is provided with an output mechanism 30. After the box body A is loaded into the outer box cover B, the output mechanism 30 is used to pack the box body with the outer box cover B. A output. In this embodiment, the output mechanism 30 is used as a structure for outputting the packaged box body A, which can move between the packaging station and the unloading station. For example, in some implementations, the output mechanism 30 is a loading platform that can move in the horizontal direction (ie, the X direction shown in FIG. 1 ), and can move up and down in the vertical direction (ie, the Z direction shown in FIG. 1 ). In this way, when the output mechanism 30 is moved to the packaging station, it can move up and down in the vertical direction to a suitable height to receive the outer box sleeve B conveyed by the second feeder 20 mechanism. It can be understood that when the second feeder 20 places the outer box cover B on the output mechanism 30 located at the packaging station, the box pushing mechanism 50 can push the box body A into the outer box cover B. Since FIG. 1 In the automatic cartoning device shown, the direction in which the box body A is pushed by the box-pushing mechanism 50 (ie, the Y direction shown in FIG. 1 ) is consistent with the opening direction of the outer box cover B, so that the box body A can pass from the outer box cover B. into the opening.

It should be noted that, in other embodiments, the direction in which the box body A is pushed by the box pushing mechanism 50 may be the same as the direction in which the box body A is outputted by the output mechanism 30, which can also meet the packaging and output requirements of the box body A. The direction in which the box pushing mechanism 50 pushes the material box is set to be perpendicular to the direction in which the output mechanism 30 outputs the box body A, so that each structure of the automatic cartoning device will not be excessively extended in one dimension, but appear too slender and unfavorable. Equipment space layout.

In some embodiments, a labeling mechanism 60 is provided on the path of the output mechanism 30 to output the box body A, and the labeling mechanism 60 is used to label the outer box sleeve B loaded with the box body A. Specifically, after the box body A is loaded into the outer box cover B, the labeling mechanism 60 sticks a part of the label paper on the outer box cover B, and the other part is attached to the side of the box body A exposed from the outer box cover B. In this way, The outer box cover B and the box body A are glued together by label paper.

In some embodiments, a first side rail 70 and a second side rail 80 are arranged on the output path of the box body A, and the first side rail 70 and the second side rail 80 are arranged in parallel to each other, and the labeling mechanism 60 is used for labeling. When the box body A is installed, the opposite side edges of the outer box sleeve B with the box body A are placed on the first side rail 70 and the second side rail 80 respectively, so that the labeling mechanism 60 can stably perform labeling.

It should be noted that the labeling mechanism 60 may be disposed on the side where the first side rail 70 is located, and the second side rail 80 may be disposed on the baffle plate 90 on the side away from the box-pushing mechanism 50, in other words, the second side rail 80 The rail 80 is connected with the baffle 90, and the connection between the two can be connected by connecting parts such as screws and bolts. The second side rail 80 can also be welded on the baffle 90. In other embodiments, the second side rail 80 and the baffle plate 90 are formed by bending a metal plate to form an integrated structure with higher structural strength. The connection form between the second side plate and the baffle plate 90 is not limited here.

When the box body A is pushed into the outer box cover B by the box push mechanism 50, the baffle plate 90 can resist the box body A and perform positioning, so that the box body A can enter the outer box cover B relatively neatly, so that the overall appearance after packaging is achieved. feel better.

In some embodiments, the baffle 90 is slidably arranged on the guide rail 90a, and the extending direction of the guide rail 90a is perpendicular to the direction in which the output mechanism 30 outputs the box A. That is, when the baffle 90 slides along the guide rail 90a, the baffle 90 is on the The second side rail 80 will approach or move away from the first side rail 70 along with the baffle 90, so as to adjust the distance between the first side rail 70 and the second side rail 80 to suit the packaging needs of different sizes of box A .

In the above-mentioned embodiment, both the first conveying mechanism 10 and the second conveying mechanism 20 may be belt conveying mechanisms, or may be other mechanisms capable of transferring materials. As far as the mechanism 10 is concerned, since the box body A is relatively hard and basically in the shape of a rectangular block, the box body A can be stably transported by using a conveyor belt. For the second feeder 20 structure, because the outer box sleeve B is relatively thin, it is usually in the form of a sheet when there is no external force support. The second feeder 20 structure can be set as a suction cup structure, and the outer box The sleeve B is adsorbed to the corresponding packaging station, so that the outer box sleeve B is stretched at the packaging station, so as to meet the needs of the box body A being loaded. The conveying form of the box body A and the outer box cover B is not limited here, as long as the outer box cover B can be supported by the support portion of the claw 41 of the claw mechanism 40 at the packaging station.

For example, in some embodiments, the output mechanism 30 includes a carrying structure for carrying the outer box cover B. After the outer box cover B is transferred to the carrying structure by the second feeder 20 mechanism, the carrying structure can transfer the flat outer box cover B to the carrying structure. B is squeezed out, and at this time, the outer box cover B is roughly in the shape of a rectangular block. After the outer box cover B is stretched by the support portion of the shifting claw 41 , a relatively regular opening can be formed, so that the box body A can enter the outer box pocket B from the opening along the guide surface 410 of the shifting claw 41 .

4 and 5, the guide surface 410 includes a first plane 410a and a second plane 410b, the first plane 410a and the second plane 410b are perpendicular to each other, and the position of the claw 41 on the mounting frame 43 is the same as that of the box body A. Corresponding to the apex angle, when the box body A abuts the claw 41 and rotates to the second position, the first plane 410a and the second plane 410b are respectively abutted with the sides of the apex corner of the box body A, and the supporting end 412 abuts the outside. The inner side of the box cover B, and then the outer box cover B is opened, so that the box body A is put into the outer box cover B.

As shown in FIG. 6 , the support end 412 is in the shape of a sheet, the support end 412 includes a first support piece 412a and a second support piece 412b that are vertically connected, the first plane 410a is located on the first support piece 412a, and the second plane 410b is located on the second support piece 412a. Support piece 412b. Under this structure, the first support piece 412a and the second support piece 412b of the support end 412 are relatively thin, so that after the first support piece 412a and the second support piece 412b stretch the outer box cover B, the box body A enters the When the outer box is set to B, the support end 412 will not be too thick and will not be blocked too much, and the first support piece 412a and the second support piece 412b will not be pressed by the box body A. The large tension causes the outer box cover B to tear.

The rotational connection between the claw 41 and the mounting bracket 43 can be realized by an intermediate piece, so that by adjusting the position of the intermediate piece on the mounting bracket 43, the position of the claw 41 on the mounting bracket 43 can be adjusted quickly, so as to adapt to different specifications. The packaging of box body A is required.

In some embodiments, the middle piece may be a mounting block 42 provided on the mounting bracket 43 . As shown in FIG. 5 and FIG. 6 , the shifting claw 41 is rotatably connected to the mounting block 42 , for example, the shifting claw 41 is rotatably connected to the mounting block 42 through a rotating shaft 41 a. The angle formed between the rotation axis of the claw 41 relative to the mounting block 42 and the first plane 410a is an acute angle, that is to say, the first plane 410a and the rotation axis 41a are at an acute angle, so that when the claw 41 rotates around the rotation axis, the first plane 410a forms an acute angle. 410a can open the outer box cover B from the opening of the outer box cover B to the outside.

7 , the rotation axis of the claw 41 relative to the mounting block 42 forms an angle of 45° with the vertical direction, and the rotation axis of the claw 41 relative to the installation block 42 forms an angle of 45° with the first plane 410a. Through this structural arrangement, when the claw 41 rotates relative to the mounting block 42 around the rotation axis, the first plane 410a and the second plane 410b will rotate around the rotation axis respectively, and finally when the claw 41 rotates to the second position, the first plane 410a and the second plane 410b respectively press the inner side of the top corner of the outer box cover B outwards, and then open the outer box cover B, so that the box body A can smoothly enter the outer box cover under the driving of the box pushing mechanism 50. B. Improve the packaging efficiency and packaging quality of box A.

3 and 7 , the mounting bracket 43 includes at least two support columns 431 , and the at least two support columns 431 both extend in the vertical direction. The mounting block 42 includes at least one inclined surface 42 a , the inclined surface 42 a and the claw 41 . The rotation axis of the mounting block 42 is at an included angle of 45°, and the side where the inclined surface 42 a of the mounting block 42 is located is connected to the support column 431 . With this structure, it is only necessary to install the inclined surface 42a of the mounting block 42 to the support column 431, and then the claw 41 can be installed on the support column 431 with the rotation axis inclined by 45°, so that the box body A enters the outside. When the box cover B, the box body A presses the claw 41 and rotates around the rotation axis, and the claw 41 supports the top angle of the outer box cover B, so that the box body A smoothly enters the outer box under the guidance of the guide surface 410 of the claw 41 set B.

The elastic piece is arranged on the mounting block 42 and abuts against the side of the shifting claw 41 facing away from the guide surface 410 , so that when the shifting claw 41 is not pressed by the box body A, the elastic piece drives the shifting claw 41 to rotate around the axis of rotation to In the first position, the reset movement of the claw 41 is realized, which is suitable for the automatic cartoning needs of the automatic cartoning equipment.

Referring to FIGS. 5 to 7 , the elastic member may be an elastic elastic column 44 or an elastic rod, or may be a compression spring provided on the mounting block 42 , which is not limited herein.

In other embodiments, the elastic member may be a torsion spring disposed on the rotation axis of the shift claw 41 relative to the mounting bracket 43 , and the arrangement of the torsion spring can also realize the reset movement of the shift claw 41 .

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present utility model, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (10)

1. a claw mechanism, arranged on the path where the box body is loaded into the outer box sleeve, and used to open the outer box sleeve when the box body is loaded, it is characterized in that, the claw mechanism comprises: an installation frame, which is arranged on the path where the box body is installed into the outer box sleeve, and the box body can move from one side of the installation frame to the other side along the direction of entering the outer box sleeve; At least two claws are arranged opposite to the mounting frame, and the claws have a guide surface, and the guide surface is used to guide the box body into the outer box sleeve when the box body is loaded, and along the box body In the direction in which the body enters the outer casing, the guide surface has an introduction end and a support end, and the shifting claw can rotate relative to the mounting frame to a first position and a second position. When the shifting claw rotates to the first position In one position, the box body can slide against the guide surface along the introduction end, and drive the switch claw to rotate to the second position. When the switch claw rotates to the second position, the support The outer box sleeve is opened at the end so that the box body can be moved into the outer box sleeve from the support end along the guide surface; The elastic member is used to drive the shifting claw to return to the first position when the box body leaves the shifting claw. 2 . The claw shifting mechanism according to claim 1 , wherein the guiding surface comprises a first plane and a second plane, the first plane and the second plane are perpendicular to each other, and the shifting claw is installed in the installation. 3 . The position on the shelf corresponds to the top angle of the box body. When the box body abuts the shifting claw and rotates to the second position, the first plane and the second plane are respectively aligned with the box body. The side surfaces at the top corners are abutted, and the supporting end is abutted against the inner side surface of the outer box sleeve. 3. The claw mechanism according to claim 2, wherein the supporting end is in the shape of a sheet, the supporting end comprises a first supporting sheet and a second supporting sheet that are vertically connected, and the first plane is located at the the first support sheet, the second plane is located on the second support sheet. 4 . The claw shifting mechanism according to claim 2 , wherein a mounting block is provided on the mounting frame, the shifting claw is rotatably connected to the mounting block, and the shifting claw is opposite to the mounting block. 5 . The angle formed by the rotation axis of the block and the first plane is an acute angle. 5 . The shifting claw mechanism according to claim 4 , wherein the rotation axis of the shifting claw relative to the mounting block forms an included angle of 45° with the vertical direction, and the shifting claw is opposite to the mounting block. 6 . The rotation axis forms an included angle of 45° with the first plane. 6 . The claw mechanism according to claim 5 , wherein the mounting bracket comprises at least two supporting columns, and the at least two supporting columns both extend in a vertical direction, and the mounting block comprises at least one inclined The inclined surface and the claw form an included angle of 45° relative to the rotation axis of the mounting block, and the side where the inclined surface of the mounting block is located is connected to the support column. 7 . The claw shifting mechanism according to claim 4 , wherein the elastic member is disposed on the mounting block and abuts against a side of the shifting claw facing away from the guide surface. 8 . 8. An automatic cartoning device, characterized in that it comprises the claw mechanism according to any one of claims 1-7. 9. The automatic cartoning device according to claim 8, wherein the automatic cartoning device further comprises: The first conveying mechanism is used for conveying the box body; The second feeding mechanism is used for conveying the outer box cover; a box pushing mechanism for pushing the box body into the outer box cover; The shifting claw mechanism is located at the output end of the box body pushed by the box pushing mechanism. When the box body passes through the shifting claw mechanism, the box body abuts the guide surface of the shifting claw and makes the The claw rotates to the second position relative to the mounting frame. 10 . The automatic cartoning device according to claim 9 , wherein the output end of the second feeding mechanism is provided with an output mechanism, and after the box body is loaded into the outer box sleeve, the output The mechanism is used for outputting the box body packaged with the outer box cover.

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