Expanding device and automatic packaging machine

Abstract

The embodiment of the present application discloses a propping device and an automatic packaging machine, wherein the propping device includes a first pressing member and a second pressing member. Driven by the mounting seat, the first pressing member pushes the side pages of the paper box from top to bottom, thereby causing the side pages to flip outward to a first predetermined posture relative to the main body of the paper box; the second pressing member pushes the side pages in the first predetermined posture from top to bottom, thereby causing the side pages in the first predetermined posture to continue to flip outward to a second predetermined posture relative to the main body. The present application reduces the rebound of the side pages, ensures that the side pages are in a predetermined posture, and prevents the side pages from affecting the subsequent loading of products into the main body of the paper box.

Description

Technical Field

[0001] This application relates to the technical field of automated equipment, and particularly relates to a spreading device and an automated packaging machine. Background Art

[0002] A paper box has a main body and side flaps located at the top of the main body. The side flaps can be folded over to open or close the cavity of the main body. During the automated packaging process, the side flaps need to be folded outwards first to prevent the side flaps from blocking the products when the products are loaded into the main body subsequently.

[0003] Chinese Patent with publication number CN203727730U discloses a carton side flap spreading mechanism, which includes a controller, a position detection sensor, a left rotary cylinder, a right rotary cylinder, a left folding plate, and a right folding plate. The controller is respectively connected to the position detection sensor, the left rotary cylinder, and the right rotary cylinder. The position detection sensor detects the position information of the paper box. The left folding plate and the right folding plate are respectively installed on the left rotary cylinder and the right rotary cylinder. The left rotary cylinder and the right rotary cylinder respectively drive the left folding plate and the right folding plate to rotate and spread the left side flap and the right side flap from the inside of the carton side flap. After the left and right folding plates are separated from the left and right side flaps, the left and right side flaps will rebound. In some scenarios, due to the obvious rebound of the side flaps, the existing spreading mechanism cannot meet the requirements. Summary of the Invention

[0004] Embodiments of this application provide a spreading device and an automated packaging machine to reduce the rebound of the side flaps.

[0005] To solve the above technical problems, embodiments of this application disclose the following technical solutions:

[0006] On the one hand, a spreading device is provided. The spreading device includes a base, a mounting seat, a first pressing member, a first driving member, a second driving member, and a second pressing member. The mounting seat is movably arranged on the base and can reciprocally move along a predetermined direction or its reverse direction relative to the base; the first pressing member is arranged on the mounting seat; the first driving member is arranged on the base, and the driving end of the first driving member is connected to the mounting seat. The first driving member is used to drive the mounting seat to move along the predetermined direction, so that the first pressing member, driven by the mounting seat, pushes against the side flap of the paper box from top to bottom, thereby causing the side flap to flip outwards relative to the main body of the paper box to a first predetermined posture; the second driving member is arranged on the mounting seat; the second pressing member is arranged at the driving end of the second driving member. The second driving member is used to drive the second pressing member to move along the predetermined direction, so that the second pressing member pushes against the side flap in the first predetermined posture from top to bottom, thereby causing the side flap in the first predetermined posture to continue to flip outwards relative to the main body to a second predetermined posture.

[0007] In addition to one or more of the features disclosed above, or as an alternative, the first pressing member has a through hole. During the movement of the second pressing member along a predetermined direction, the second pressing member passes through the first pressing member from one side of the first pressing member through the through hole, so as to push against the side flap located on the other side of the first pressing member.

[0008] In addition to one or more of the features disclosed above, or as an alternative, the first pressing member has a first pressing surface for abutting against the side flap, and the first pressing surface is a cylindrical surface.

[0009] In addition to one or more of the features disclosed above, or as an alternative, the second pressing member has a second pressing surface for pressing against the side flap, and the second pressing surface is a spherical surface or a cylindrical surface.

[0010] In addition to one or more of the features disclosed above, or as an alternative, the number of the first pressing members is two. One first pressing member is used to push against one side flap of the paper box, and the other first pressing member is used to push against the other side flap of the paper box; the number of the second pressing members is equal to that of the first pressing members and they are in one-to-one correspondence. The second pressing member is used to push against the side flap pushed by the corresponding first pressing member.

[0011] In addition to one or more of the features disclosed above, or as an alternative, the two first pressing members are spaced apart and arranged in mirror symmetry, the two second pressing members are spaced apart and arranged in mirror symmetry, and the central symmetry planes of the two first pressing members and the central symmetry planes of the two second pressing members are the same.

[0012] In addition to one or more of the features disclosed above, or as an alternative, the mounting seat is slidably fitted to the base along a predetermined direction.

[0013] In addition to one or more of the features disclosed above, or as an alternative, the first driving member includes a first air cylinder and a second air cylinder. The first air cylinder has a first cylinder body and a first piston rod. The first cylinder body is arranged on the base, and the first piston rod can reciprocally move relative to the first cylinder body along a predetermined direction or the opposite direction of the predetermined direction; the second air cylinder has a second cylinder body and a second piston rod. The second cylinder body is arranged on the first piston rod, and the second piston rod can reciprocally move relative to the second cylinder body along a predetermined direction or the opposite direction of the predetermined direction. The second piston rod is connected to the mounting seat; wherein, the first air cylinder is used to drive the second air cylinder to move along a predetermined direction so that the second air cylinder drives the mounting seat to move along a predetermined direction, and the second air cylinder is used to adjust the position of the mounting seat in the predetermined direction.

[0014] In addition to one or more of the features disclosed above, or as an alternative, the second driving member is a third air cylinder.

[0015] On the other hand, an automatic packaging machine is further disclosed. The automatic packaging machine includes a conveyor line, a fixing device, and a spreading device. The conveyor line is used to convey paper boxes; the fixing device is arranged corresponding to the conveying path of the conveyor line and is used to fix the main body of the paper box after the paper box is conveyed to a predetermined position; the spreading device is arranged corresponding to the conveying path of the conveyor line, and the spreading device is any one of the above spreading devices.

[0016] One of the technical solutions in the above technical solutions has the following advantages or beneficial effects:

[0017] Driven by the mounting seat, the first pressing member pushes against the side flap of the paper box from top to bottom, so that the side flap turns outwards relative to the main body of the paper box to the first predetermined posture; the second pressing member moves along a predetermined direction so that the second pressing member pushes against the side flap in the first predetermined posture from top to bottom, so that the side flap in the first predetermined posture continues to turn outwards relative to the main body to the second predetermined posture. On the basis of the first pressing, the side flap is pressed again. Compared with only pressing the side flap once, the present application reduces the springback of the side flap, ensures that the side flap is in a predetermined posture, and avoids the side flap from affecting the subsequent product loading into the main body of the paper box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following will make the technical solutions and other beneficial effects of the present application obvious by describing the specific embodiments of the present application in detail with reference to the accompanying drawings.

[0019] Figure 1 is the front view of an embodiment of the spreading device of the present application;

[0020] Figure 2 is Figure 1 the side view of the spreading device shown;

[0021] Figure 3 is Figure 1 the three-dimensional structure schematic diagram of the first perspective of the spreading device shown (including the paper box);

[0022] Figure 4 is Figure 1 the three-dimensional structure schematic diagram of the second perspective of the spreading device shown (including the paper box);

[0023] Figure 5 is Figure 1 the process schematic diagram of the spreading device shown spreading the side flap of the paper box.

[0024] In the figure, 100 is the spreading device, 101 is the base, 103 is the mounting seat, 105 is the first pressing member, 107 is the first cylinder, 109 is the second cylinder, 110 is the first driving member, 111 is the second pressing member, 113 is the second driving member, 115 is the first pressing surface, 117 is the second pressing surface, 119 is the through hole, 1 is the paper box, 2 is the main body, and 3 is the side flap. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the objectives, technical solutions, and beneficial effects of this application clearer and more understandable, the following further details this application in combination with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are only for explaining this application and not for limiting this application.

[0026] In the description of this application, it should be understood that terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These are only for facilitating the description of this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of this application, "a plurality of" means two or more, unless otherwise specifically defined.

[0027] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In this application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0029] Please refer to Figures 1 to 4 , Figure 1is a front view of an embodiment of the opening device 100 of the present application, Figure 2 is Figure 1 a side view of the opening device 100 shown, Figure 3 is Figure 1 a three-dimensional structural schematic diagram of the opening device 100 shown from a first perspective (including the paper box 1), Figure 4 is Figure 1 a three-dimensional structural schematic diagram of the opening device 100 shown from a second perspective (including the paper box 1).

[0030] An embodiment of the opening device 100 of the present application includes a base 101, a mounting seat 103, a first pressing member 105, a first driving member 110, a second driving member 113, and a second pressing member 111.

[0031] The mounting seat 103 is movably arranged on the base 101 and can reciprocate along a predetermined direction F relative to the base 101 or its reverse direction. Specifically, the mounting seat 103 is slidably engaged with the base 101 along the predetermined direction F. In the use state, the predetermined direction F is the direction of gravity.

[0032] The first pressing member 105 is arranged on the mounting seat 103. The first pressing member 105 and the mounting seat 103 can be an integral structure or a split structure. The first pressing member 105 has a through hole 119, and the through hole 119 penetrates the first pressing member 105 in the predetermined direction F. The first pressing member 105 has a first pressing surface 115, and the first pressing surface 115 is used to abut against the side flap 3. The first pressing surface 115 is a cylindrical surface. Specifically, in the use state, the first pressing surface 115 is recessed on the side away from the paper box 1, and the axis of the first pressing surface 115 is generally parallel to the crease at the connection between the side flap 3 and the main body 2.

[0033] In this embodiment, two side flaps 3 of the paper box 1 need to be opened. Correspondingly, the number of the first pressing members 105 is two. One first pressing member 105 is used to push against one side flap 3 of the paper box 1, and the other first pressing member 105 is used to push against the other side flap 3 of the paper box 1. The two first pressing members 105 are spaced apart and arranged in mirror symmetry to ensure the same pressing effect.

[0034] The first driving member 110 is arranged on the base 101. The driving end of the first driving member 110 is connected to the mounting seat 103. The first driving member 110 is used to drive the mounting seat 103 to move along the predetermined direction F or its reverse direction.

[0035] Specifically, the first driving member 110 includes a first cylinder 107 and a second cylinder 109. The first cylinder 107 has a first cylinder block and a first piston rod. The first cylinder block is disposed on the base 101, and the first piston rod can reciprocally move relative to the first cylinder block along a predetermined direction F or the reverse direction of the predetermined direction F. The second cylinder 109 has a second cylinder block and a second piston rod. The second cylinder block is disposed on the first piston rod, and the second piston rod can reciprocally move relative to the second cylinder block along a predetermined direction F or the reverse direction of the predetermined direction F. The second piston rod is connected to the mounting seat 103. Among them, the first cylinder 107 is used to drive the second cylinder 109 to move along the predetermined direction F, so that the second cylinder 109 drives the mounting seat 103 to move along the predetermined direction F. The second cylinder 109 is used to adjust the position of the mounting seat 103 in the predetermined direction F. During normal use, the second cylinder 109 does not act, and only the first cylinder 107 acts to drive the mounting seat 103 to move. When replacing the carton 1 of different specifications, the second cylinder 109 acts to adjust the height of the mounting seat 103 to adapt to the carton 1 of different specifications.

[0036] The second driving member 113 is disposed on the mounting seat 103. The number of the second driving members 113 is two. The second driving member 113 is a third cylinder.

[0037] The second pressing member 111 is disposed at the driving end of the second driving member 113. The second pressing member 111 has a second pressing surface 117, and the second pressing surface 117 is used to press against the side flap 3. The second pressing surface 117 is a spherical surface. In other embodiments, the second pressing surface 117 may also be a cylindrical surface. Specifically, in the use state, the cylindrical surface protrudes toward the carton 1, and the axis of the cylindrical surface is generally parallel to the crease at the connection between the side flap 3 and the main body 2.

[0038] The number of the second pressing members 111 is equal to that of the first pressing members 105 and they are in one-to-one correspondence. The two second pressing members 111 are spaced apart and arranged in mirror symmetry. The central symmetry planes of the two first pressing members 105 and the central symmetry planes of the two second pressing members 111 are the same to ensure the same pressing effect. The second pressing member 111 is used to push against the side flap 3 pushed by the corresponding first pressing member 105. Specifically, Figure 1 in, the left first pressing member 105 and the left second pressing member 111 are respectively used to press against the left side flap 3. The right first pressing member 105 and the right second pressing member 111 are respectively used to press against the right side flap 3. Figure 1 The carton 1 is not drawn in the figure.

[0039] The second driving member 113 is used to drive the second pressing member 111 to move along the predetermined direction F or its reverse direction. Specifically, Figure 1Among them, the second driving member 113 on the left is used to drive the second pressing member 111 on the left to move, and the second driving member 113 on the right is used to drive the second pressing member 111 on the right to move.

[0040] In some embodiments, the two second pressing members 111 can also be slidably fitted to the mounting base 103 along a predetermined direction F. The number of the second driving members 113 is one, and the driving ends of the second driving members 113 are respectively connected to the two second pressing members 111, and are used to synchronously drive the two second pressing members 111 to move along the predetermined direction F or its reverse direction.

[0041] Please refer to Figure 5 , Figure 5 is Figure 1 the schematic diagram of the process of the spreading device 100 shown in

[0042] As Figure 5 shown in part (a) of

[0043] After the paper box 1 is located at the predetermined position, the main body 2 of the paper box 1 is fixed and located directly below the first pressing member 105. The side flaps 3 of the paper box 1 are generally in a vertical state before being pressed. Figure 5 shown in part (b) of

[0044] The first driving member 110 drives the mounting base 103 to move along the predetermined direction F. Driven by the mounting base 103, the first pressing member 105 pushes against the side flaps 3 of the paper box 1 from top to bottom, so that the side flaps 3 are turned outwards relative to the main body 2 of the paper box 1 to the first predetermined posture. When the side flaps 3 are in the first predetermined posture, the included angle with the vertical direction is A. Figure 5 shown in part (c) of

[0045] The second driving member 113 drives the second pressing member 111 to move along the predetermined direction F, so that the second pressing member 111 pushes against the side flaps 3 in the first predetermined posture from top to bottom, so that the side flaps 3 in the first predetermined posture are further turned outwards relative to the main body 2 to the second predetermined posture. Among them, during the process of the second pressing member 111 moving along the predetermined direction F, it passes through the through hole 119 from one side of the first pressing member 105 through the first pressing member 105, so as to push against the side flaps 3 located on the other side of the first pressing member 105. When the side flaps 3 are in the second predetermined posture, the included angle with the vertical direction is B. Figure 5 shown in part (d) of

[0046] In one embodiment, angle A is 60°, angle B is 150° of the paper box, and angle C is 60°.

[0047] In the above embodiment, on the basis of the first pressing (pre-pressing), the side flap 3 is pressed again (over-pressed). Thereby, the rebound of the side flap 3 is reduced, ensuring that the side flap 3 is in a predetermined posture and preventing the side flap 3 from affecting the subsequent loading of products into the main body 2 of the paper box 1.

[0048] This application also provides an automatic packaging machine, which includes a conveyor line, a fixing device, and a spreading device 100.

[0049] The conveyor line is used to convey the paper box 1. The conveyor line can be a belt conveyor, which is a conventional structure and will not be elaborated here.

[0050] The fixing device is arranged corresponding to the conveying path of the conveyor line and is used to fix the main body 2 of the paper box 1 after the paper box 1 is conveyed to a predetermined position. Specifically, the fixing device includes a pair of clamping plates and a cylinder, and the cylinder drives the pair of clamping plates to clamp the main body 2, thereby fixing the main body 2. The specific structure of the fixing device is not limited here.

[0051] The spreading device 100 is arranged corresponding to the conveying path of the conveyor line, and the spreading device 100 is the spreading device 100 in any of the above embodiments.

[0052] The automatic packaging machine has all the technical features of the spreading device 100. Therefore, it also has all the technical effects of the spreading device 100, which will not be elaborated here.

[0053] In summary, this proposal reduces the rebound of the side flap, ensures that the side flap is in a predetermined posture, and prevents the side flap from affecting the subsequent loading of products into the main body of the paper box. In addition, a second cylinder is provided, which can improve the compatibility of the spreading device. This proposal improves the efficiency of pressing the side flap and realizes the flexible, customized, and automated production of pressing the side flap.

[0054] The introduction provided in the above steps is only used to help understand the method, structure, and core idea of this application. For those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A spreading device, characterized in that, it includes: a base; a mounting seat, the mounting seat is movably arranged on the base and can reciprocate along a predetermined direction or its opposite direction relative to the base; a first pressing member, the first pressing member is arranged on the mounting seat; a first driving member, the first driving member is arranged on the base, the driving end of the first driving member is connected to the mounting seat, and the first driving member is used to drive the mounting seat to move along the predetermined direction, so that the first pressing member, driven by the mounting seat, pushes against the side page of the paper box from top to bottom, and further makes the side page turn outwards relative to the main body of the paper box to a first predetermined posture; a second driving member, the second driving member is arranged on the mounting seat; a second pressing member, the second pressing member is arranged at the driving end of the second driving member, and the second driving member is used to drive the second pressing member to move along the predetermined direction, so that the second pressing member pushes against the side page in the first predetermined posture from top to bottom, and further makes the side page in the first predetermined posture turn outwards relative to the main body to a second predetermined posture; the first pressing member has a through hole, and during the movement of the second pressing member along the predetermined direction, the second pressing member passes through the first pressing member from one side of the first pressing member through the through hole, so as to push against the side page located on the other side of the first pressing member.

2. The spreading device according to claim 1, characterized in that, the first pressing member has a first pressing surface, the first pressing surface is used to abut against the side page, and the first pressing surface is a cylindrical surface.

3. The spreading device according to claim 1, characterized in that, the second pressing member has a second pressing surface, the second pressing surface is used to press against the side page, and the second pressing surface is a spherical surface or a cylindrical surface.

4. The spreading device according to claim 1, characterized in that, the number of the first pressing members is two, one first pressing member is used to push against one side page of the paper box, and the other first pressing member is used to push against the other side page of the paper box; the number of the second pressing members is equal to that of the first pressing members and they are in one-to-one correspondence, and the second pressing member is used to push against the side page pushed by the corresponding first pressing member.

5. The spreading device according to claim 4, characterized in that, the two first pressing members are arranged at intervals and are mirror-symmetric, the two second pressing members are arranged at intervals and are mirror-symmetric, and the central symmetry planes of the two first pressing members and the central symmetry planes of the two second pressing members are the same.

6. The spreading device according to claim 1, characterized in that, the mounting seat is slidably engaged with the base along the predetermined direction.

7. The spreading device according to claim 1, characterized in that, the first driving member includes: a first air cylinder, the first air cylinder has a first cylinder body and a first piston rod, the first cylinder body is arranged on the base, and the first piston rod can reciprocate along the predetermined direction or the opposite direction of the predetermined direction relative to the first cylinder body; A second cylinder, the second cylinder having a second cylinder block and a second piston rod, the second cylinder block being disposed on the first piston rod, the second piston rod being capable of reciprocating relative to the second cylinder block in the predetermined direction or the opposite direction of the predetermined direction, and the second piston rod being connected to the mounting seat; Wherein, the first cylinder is used to drive the second cylinder to move in the predetermined direction, so that the second cylinder drives the mounting seat to move in the predetermined direction, and the second cylinder is used to adjust the position of the mounting seat in the predetermined direction.

8. The spreading device according to claim 1, characterized in that the second driving member is a third cylinder.

9. An automatic packaging machine, characterized in that it comprises: a conveying line for conveying paper boxes; a fixing device provided corresponding to the conveying path of the conveying line for fixing the main body of the paper box after the paper box is conveyed to a predetermined position; a spreading device provided corresponding to the conveying path of the conveying line, the spreading device being the spreading device according to any one of claims 1 to 8.

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