Packaging paper folding mechanism and folding method

Abstract

The invention discloses a packaging paper folding mechanism and a folding method. The packaging paper folding mechanism comprises a cigarette packet push-out channel; the first supporting platform is located in front of the cigarette packet pushing-out channel, a first gap exists between the first supporting platform and the cigarette packet pushing-out channel, the side edge, close to the cigarette packet pushing-out channel, of the first supporting platform extends downwards and is bent to form a packaging paper bottom edge groove, and the packaging paper bottom edge groove is located under the first gap; the paper guide plate is of a vertically-arranged flat plate structure, and the paper guide plate is located over the packaging paper bottom edge groove; the second supporting platform is located in front of the first supporting platform, a second gap exists between the second supporting platform and the first supporting platform, and the bottom face of the second supporting platform, the bottom face of the first supporting platform and the bottom face of the cigarette packet pushing-out channel are flush; the lower folding edge folds the cutting board; the upper folding edge folds the cutting board; and a side edge folding assembly. According to the folding and packaging device, packaging paper can be comprehensively folded to wrap small cigarette packets at the same station, and the folding and packaging process is reduced.

Description

Technical Field

[0001] This invention relates to the field of packaging technology, and specifically to a paper folding mechanism and folding method. Background Technology

[0002] In the cigarette packaging process, a certain number of small packs of cigarettes need to be packaged into carton packaging paper. During this process, the packaging paper needs to be folded to form a box-shaped structure and cover the small packs of cigarettes. In the prior art, the cigarette packs together with the packaging paper are usually pushed into the mold slot of the turret, so that the back and top and bottom sides of the packaging paper cover the small packs of cigarettes. However, the left and right sides and the front side of the packaging paper do not cover the small packs of cigarettes, and they need to be covered at the next station. This process prolongs the packaging process and makes it more troublesome. Moreover, the small packs of cigarettes are prone to displacement in the turret because there is no packaging paper covering and limiting them on the left and right sides, which is not conducive to the efficiency of packaging production. In order to overcome this technical problem, this invention proposes a packaging paper folding mechanism and folding method. Summary of the Invention

[0003] The purpose of this invention is to provide a packaging paper folding mechanism and folding method, which enables the packaging paper to be fully folded and wrapped around small cigarette packs at the same workstation, thereby reducing the folding and packaging process and overcoming the defects pointed out in the background art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A packaging paper folding mechanism, comprising:

[0006] Cigarette pack ejection channel;

[0007] The first support platform is located in front of the cigarette pack ejection channel and there is a first gap between the first support platform and the cigarette pack ejection channel. The side of the first support platform near the cigarette pack ejection channel extends downward and bends to form a bottom edge groove of the packaging paper, which is located directly below the first gap.

[0008] The guide plate is a vertically arranged flat structure, located directly above the bottom edge groove of the packaging paper.

[0009] The second support platform is located in front of the first support platform and there is a second gap between the second support platform and the first support platform. The bottom surfaces of the second support platform, the first support platform and the cigarette pack ejection channel are flush.

[0010] The lower folding blade is located in the second gap, and the bottom of the lower folding blade is connected to the first cylinder.

[0011] The upper folding blade is located directly above the lower folding blade, and the side of the upper folding blade is connected to the second cylinder.

[0012] The side-folding assembly includes a lower side plate, an upper side plate, and a connecting strip. The upper side plate is connected above the lower side plate, and there is a third gap between the upper and lower side plates. The lower side plates are located on both sides of a first support platform. The lower side plates are connected by a connecting strip, which is located at the bottom of the first support platform. A third cylinder is provided at the bottom of the first support platform, and the extension end of the third cylinder is connected to the connecting strip.

[0013] Furthermore, it also includes a pack ejection assembly, which is located behind the pack ejection channel.

[0014] Furthermore, the cigarette pack ejection assembly includes a fourth cylinder and an ejection plate. The ejection plate is connected to the ejection end of the fourth cylinder. When the fourth cylinder is in the initial state, a fourth gap is formed between the ejection plate and the cigarette pack ejection channel port for the cigarette pack to pass through.

[0015] Furthermore, a bracket is provided above the cigarette pack ejection channel, a paper pressing wheel is rotatably mounted on the bracket, and a motor for driving the paper pressing wheel to rotate is provided on one side of the bracket. The circumferential surface of the paper pressing wheel is made of soft material and is in contact with the guide plate.

[0016] Furthermore, it also includes a pressure plate, on the upper surface of which are provided at least two guide rods, one of which is provided with an external thread and connected with a threaded sleeve. At least two extension rods are provided in front of the guide plate, and the threaded sleeve and the remaining guide rods are respectively inserted through the ends of the extension rods. The pressure plate is located directly above the second support platform.

[0017] Furthermore, the rear side of the lower side plate is provided with a guide bevel, and the lower side plate and the upper side plate are located in the same vertical plane.

[0018] On the other hand, based on the above-described folding mechanism, the present invention also provides a method for folding packaging paper, comprising the following steps:

[0019] S1. Packaging paper conveying: The packaging paper conveyed from upstream is guided by the guide plate and falls vertically onto the bottom edge groove of the packaging paper. At this time, the packaging paper vertically pushes the cigarette pack out of the channel port and completely covers it.

[0020] S2, Cigarette Packet Placement and Push-out: After the small cigarette packs from the upstream are delivered to their place, they are located in the fourth gap between the push-out plate and the cigarette pack push-out channel port. The cigarette pack push-out component pushes out the arranged small cigarette packs, so that the small cigarette packs pass through the cigarette pack push-out channel, the first support platform, and the second support platform in sequence.

[0021] S3, Early stage of semi-folding of packaging paper: When the small cigarette pack passes the first support platform, on the one hand, due to the obstruction of the packaging paper by the guide plate and the edge of the first support platform, the packaging paper gradually covers the top and bottom surfaces of the small cigarette pack during the pushing process. On the other hand, the middle and lower side folds of the packaging paper gradually gather to the folded state under the action of the guide inclined edge.

[0022] S4. Post-semi-folding of packaging paper: After the small cigarette pack enters the second support platform, due to the distance between the pressure plate and the second support platform, the packaging paper completely covers the back, top and bottom of the small cigarette pack. The middle and lower side flaps are also folded to the sides of the small cigarette pack, while the upper side flap is in an undisturbed state and located in the third gap between the lower and upper side plates.

[0023] S5. The wrapping paper is completely folded: The lower folding blade is pushed upward to fold the lower folding ear upward, and the upper folding blade is pushed downward to fold the upper folding ear downward, so that the lower and upper folding ears completely cover the front side of the small cigarette pack. The side folding component is pushed downward through the upper side plate to fold the upper side folding ear downward, so that the upper, middle, and lower side folding ears are completely folded and cover both sides of the small cigarette pack. This completes the complete folding and covering of all sides of the small cigarette pack with the wrapping paper.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] This invention uses a cigarette pack ejection assembly to push a small cigarette pack and its packaging paper forward together. A second gap is provided between the first and second support platforms, and a lower folding blade is provided in the second gap. The lower folding blade folds the lower flap of the packaging paper upward. An upper folding blade is provided above the lower folding blade to fold the upper flap of the packaging paper downward, so that the upper and lower flaps fold to cover the front side of the small cigarette pack. A lower side plate and an upper side plate are provided on both sides of the first support platform. A guide bevel is provided on the rear side of the lower side plate to fold the side flaps of the packaging paper so that they can cover both sides of the small cigarette pack. Thus, this mechanism can complete the complete folding of the packaging paper in one go to completely cover the small cigarette pack. A pressure plate is also provided in front of the guide plate. The pressure plate is connected to the end of the extension rod through a guide rod, and one of the guide rods is threaded with a screw sleeve, so that the height of the pressure plate can be adjusted to adapt to the pressing process of different cigarette pack thicknesses. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention.

[0027] Figure 2 This is a schematic diagram of the other side of the structure of the present invention.

[0028] Figure 3This is a disassembly diagram of the present invention.

[0029] Figure 4 This is a schematic diagram of the side-folding assembly.

[0030] Figure 5 This is a schematic diagram of each folded edge of the packaging paper.

[0031] In the diagram, 1-Cigarette pack ejection assembly, 1a-Ejection plate, 1b-Fourth cylinder, 2-Cigarette pack ejection channel, 3-Bracket, 4-Paper pressing roller, 5-Motor, 6-First support platform, 7-Bottom edge groove of packaging paper, 8-Side folding assembly, 81-Lower side plate, 82-Upper side plate, 83-Connecting strip, 84-Guide bevel, 9-Second cylinder, 10-Upper folding blade, 11-Lower folding blade, 12-Second support platform, 13-Guide plate, 14-Pressure plate, 15-Guide rod, 16-Screw sleeve, 17-Extension rod, 18-Third cylinder, 19-First cylinder, 20-Packaging paper. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0034] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] refer to Figure 1-3 As shown, the present invention provides a packaging paper folding mechanism, comprising:

[0036] Cigarette pack ejection channel 2, which can be a rectangular cover or a groove structure;

[0037] The first support platform 6 is located in front of the cigarette pack ejection channel 2 and there is a first gap between the first support platform 6 and the cigarette pack ejection channel 2. The side of the first support platform 6 near the cigarette pack ejection channel 2 extends downward and bends to form the bottom edge groove of the packaging paper 7. Since it supports the bottom of the packaging paper, the bottom edge groove of the packaging paper 7 is located directly below the first gap.

[0038] The guide plate 13 is a vertically arranged flat structure, and the guide plate 13 is located directly above the bottom edge groove 7 of the packaging paper.

[0039] As can be seen from the above, a first gap is formed between the cigarette pack ejection channel 2 and the first support platform 6. A packaging paper bottom edge groove 7 is provided below the first gap, and a guide plate 13 is provided above the first gap. The guide plate 13 is used to guide the upstream packaging paper 20 so that the packaging paper 20 falls vertically into the packaging paper bottom edge groove 7. Preferably, an optical fiber sensor for detecting the arrival of the packaging paper is provided on one side of the packaging paper bottom edge groove 7.

[0040] The second support platform 12 is located in front of the first support platform 6 and there is a second gap between the second support platform 12 and the first support platform 6. The bottom surfaces of the second support platform 12, the first support platform 6 and the cigarette pack ejection channel 2 are flush, which facilitates the smooth pushing of the small cigarette pack.

[0041] The lower folding blade 11 is located in the second gap. The bottom of the lower folding blade 11 is connected to the first cylinder 19, which can fold the lower folding ear 20a of the packaging paper upward.

[0042] The upper folding blade 10 is located directly above the lower folding blade 11, and the side of the upper folding blade 10 is connected to the second cylinder 9.

[0043] As can be seen from the above, a second gap is formed between the first support platform 6 and the second support platform 12. A lower folding blade 11 is provided below the second gap to fold the lower fold ear 20a of the packaging paper upward. An upper folding blade 10 is provided above the second gap to fold the upper fold ear 20b of the packaging paper downward, so that the lower fold ear 20a and the upper fold ear 20b can cover the front side of the small cigarette pack.

[0044] Side folding component 8, see reference Figure 4-5As shown, it includes a lower side plate 81, an upper side plate 82, and a connecting strip 83. The upper side plate 82 is connected above the lower side plate 81. There is a third gap between the upper side plate 82 and the lower side plate 81 to allow the upper side folding ear 20e of the packaging paper to pass through. A guide bevel 84 is provided on the rear side of the lower side plate 81. The lower side plate 81 and the upper side plate 82 are located in the same vertical plane. The side plates 81 are located on both sides of the first support platform 6. The lower side plates 81 are connected by the connecting strip 83, and the connecting strip 83 is located at the bottom of the first support platform 6. A third cylinder 18 is provided at the bottom of the first support platform 6. The pushing end of the third cylinder 18 is connected to the connecting strip 83, thereby causing the upper side plate 82 to move downward and fold the upper side folding ear 20e downward.

[0045] The device also includes a cigarette pack ejection assembly 1, which is located behind the cigarette pack ejection channel 2. In some embodiments, the cigarette pack ejection assembly 1 includes a fourth cylinder 1b and an ejection plate 1a. The ejection plate 1a is connected to the ejection end of the fourth cylinder 1b. When the fourth cylinder 1b is in the initial state, a fourth gap is formed between the ejection plate 1a and the port of the cigarette pack ejection channel 2 for the cigarette pack to pass through. When the fourth cylinder 1b ejects, the ejection plate 1a needs to be ejected to the second gap.

[0046] A bracket 3 is provided above the cigarette pack ejection channel 2. A paper pressing roller 4 is rotatably mounted on the bracket 3, and a motor 5 for driving the paper pressing roller 4 to rotate is provided on one side of the bracket 3. The circumferential surface of the paper pressing roller 4 is made of soft material and contacts the guide plate 13, thereby smoothly conveying the packaging paper downwards.

[0047] The device also includes a pressure plate 14, with at least two guide rods 15 on its upper surface. One of the guide rods 15 has an external thread and is connected to a threaded sleeve 16. At least two extension rods 17 are provided in front of the guide plate 13, with round holes at their ends. The threaded sleeve 16 and the other guide rods 15 pass through the ends of the extension rods 17. The pressure plate 14 is located directly above the second support platform 12, thereby pressing the small cigarette packs during the wrapping process. Since the threaded sleeve 16 is threaded to one of the guide rods 15, rotating the threaded sleeve 16 can adjust the height of the pressure plate 14 to accommodate cigarette packs of different thicknesses.

[0048] The present invention also provides a method for folding packaging paper, comprising the following steps:

[0049] S1. Packaging paper conveying: The packaging paper 20 conveyed from the upstream passes through the guide plate 13 and falls vertically onto the bottom edge groove 7 of the packaging paper. At this time, the packaging paper 20 vertically pushes the cigarette pack out of the channel 2 port and completely covers it.

[0050] S2, cigarette pack delivery: After the small cigarette packs from the upstream are delivered to the delivery position, the small cigarette packs are located in the fourth gap between the delivery plate 1a and the cigarette pack delivery channel 2. The cigarette pack delivery component 1 pushes out the arranged small cigarette packs, so that the small cigarette packs pass through the cigarette pack delivery channel 2, the first support platform 6, and the second support platform 12 in sequence.

[0051] S3, Early stage of semi-folding of packaging paper: When the small cigarette pack passes the first support platform 6, on the one hand, due to the obstruction of the packaging paper 20 by the guide plate 13 and the edge of the first support platform 6, the packaging paper 20 gradually covers the top and bottom surfaces of the small cigarette pack during the pushing process. On the other hand, the middle side fold 20d and the lower side fold 20c of the packaging paper gradually gather to the folded state under the action of the guide inclined edge 84.

[0052] S4. Post-semi-folding of packaging paper: After the small cigarette pack enters the second support platform 12, due to the distance between the pressure plate 14 and the second support platform 12, the packaging paper 20 completely covers the back side, top and bottom of the small cigarette pack. The middle side fold 20d and the lower side fold 20c are also folded to the sides of the small cigarette pack, while the upper side fold 20e is in an undisturbed state and is located in the third gap between the lower side plate 81 and the upper side plate 82.

[0053] S5. The packaging paper is completely folded: The lower folding blade 11 is pushed upward to fold the lower folding ear 20a upward, and the upper folding blade 10 is pushed downward to fold the upper folding ear 20b downward, so that the lower folding ear 20a and the upper folding ear 20b completely cover the front side of the small cigarette pack. The side folding component 8 is pushed downward through the upper side plate 82 to fold the upper side folding ear 20e downward, so that the upper side folding ear 20e, the middle side folding ear 20d and the lower side folding ear 20c are completely folded and cover both sides of the small cigarette pack. At this point, the packaging paper 20 has been completely folded and covered on all sides of the small cigarette pack.

[0054] Although the invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various modifications and improvements can be made to the components or layout of the subject matter arrangement within the scope of the disclosure, drawings, and claims. Besides modifications and improvements to the components or layout, other uses will be apparent to those skilled in the art.

Claims

1. A packaging paper folding mechanism, characterized in that, include: Cigarette pack ejection channel (2); The first support platform (6) is located in front of the cigarette pack ejection channel (2) and there is a first gap between the first support platform (6) and the cigarette pack ejection channel (2). The side of the first support platform (6) near the cigarette pack ejection channel (2) extends downward and bends to form the bottom edge groove of the packaging paper (7). The bottom edge groove of the packaging paper (7) is located directly below the first gap. The guide plate (13) is a vertically arranged flat plate structure, and the guide plate (13) is located directly above the bottom edge groove (7) of the packaging paper; The second support platform (12) is located in front of the first support platform (6) and there is a second gap between the second support platform (12) and the first support platform (6). The bottom surfaces of the second support platform (12), the first support platform (6) and the cigarette pack ejection channel (2) are flush. The lower folding blade (11) is located in the second gap, and the bottom of the lower folding blade (11) is connected to the first cylinder (19). The upper folding blade (10) is located directly above the lower folding blade (11), and the side of the upper folding blade (10) is connected to the second cylinder (9). The side folding assembly (8) includes a lower side plate (81), an upper side plate (82) and a connecting strip (83). The upper side plate (82) is connected above the lower side plate (81). There is a third gap between the upper side plate (82) and the lower side plate (81). The lower side plate (81) is located on both sides of the first support platform (6). The lower side plates (81) are connected by the connecting strip (83) and the connecting strip (83) is located at the bottom of the first support platform (6). A third cylinder (18) is provided at the bottom of the first support platform (6). The push-out end of the third cylinder (18) is connected to the connecting strip (83).

2. The packaging paper folding mechanism according to claim 1, characterized in that: It also includes a cigarette pack ejection assembly (1), which is located behind the cigarette pack ejection channel (2).

3. The packaging paper folding mechanism according to claim 2, characterized in that: The cigarette pack ejection assembly (1) includes a fourth cylinder (1b) and an ejection plate (1a). The ejection plate (1a) is connected to the ejection end of the fourth cylinder (1b). When the fourth cylinder (1b) is in the initial state, a fourth gap is formed between the ejection plate (1a) and the port of the cigarette pack ejection channel (2) for the cigarette pack to pass through.

4. The packaging paper folding mechanism according to claim 1, characterized in that: A bracket (3) is provided above the cigarette pack ejection channel (2). A paper pressing wheel (4) is rotatably mounted on the bracket (3), and a motor (5) for driving the paper pressing wheel (4) to rotate is provided on one side of the bracket (3). The circumferential surface of the paper pressing wheel (4) is made of soft material and is in contact with the guide plate (13).

5. A packaging paper folding mechanism according to claim 1 or 4, characterized in that: It also includes a pressure plate (14), on the upper surface of the pressure plate (14) are provided at least two guide rods (15), one of the guide rods (15) is provided with an external thread and connected with a screw sleeve (16), at least two extension rods (17) are provided in front of the guide plate (13), the screw sleeve (16) and the other guide rods (15) are respectively passed through the end of the extension rod (17), and the pressure plate (14) is located directly above the second support platform (12).

6. A packaging paper folding mechanism according to claim 1, characterized in that: The lower side plate (81) is provided with a guide bevel (84) on its rear side, and the lower side plate (81) and the upper side plate (82) are located in the same vertical plane.

7. A method for folding packaging paper, characterized in that, Includes the following steps: S1, Packaging paper conveying: The packaging paper (20) conveyed from the upstream passes through the guide plate (13) and falls vertically onto the bottom edge groove (7) of the packaging paper. At this time, the packaging paper (20) vertically pushes the cigarette pack out of the channel (2) and completely covers the port. S2, cigarette pack delivery: After the small cigarette packs from the upstream are delivered to the delivery point, the small cigarette packs are located in the fourth gap between the delivery plate (1a) and the cigarette pack delivery channel (2). The arranged small cigarette packs are pushed out by the cigarette pack delivery component (1), so that the small cigarette packs pass through the cigarette pack delivery channel (2), the first support platform (6), and the second support platform (12) in sequence. S3, Early stage of semi-folding of packaging paper: When the small cigarette pack passes the first support platform (6), on the one hand, due to the obstruction of the packaging paper (20) by the guide plate (13) and the edge of the first support platform (6), the packaging paper (20) gradually covers the top and bottom surfaces of the small cigarette pack during the process of pushing out the small cigarette pack. On the other hand, the middle side fold (20d) and the lower side fold (20c) of the packaging paper gradually gather to the folded state under the action of the guide inclined edge (84). S4, Post-semi-folded packaging paper: After the small cigarette pack enters the second support platform (12), due to the distance between the pressure plate (14) and the second support platform (12), the packaging paper (20) completely covers the back side, top and bottom of the small cigarette pack. The middle side fold (20d) and the lower side fold (20c) are also folded to the sides of the small cigarette pack, while the upper side fold (20e) is in an unfolded state and is located in the third gap between the lower side plate (81) and the upper side plate (82). S5. The packaging paper is completely folded: The lower folding blade (11) is pushed upward to fold the lower folding ear (20a) upward, and the upper folding blade (10) is pushed downward to fold the upper folding ear (20b) downward, so that the lower folding ear (20a) and the upper folding ear (20b) completely cover the front side of the small cigarette pack. The side folding component (8) is pushed downward through the upper side plate (82) to fold the upper side folding ear (20e) downward, so that the upper side folding ear (20e), the middle side folding ear (20d) and the lower side folding ear (20c) are completely folded and cover the two sides of the small cigarette pack. This completes the folding and covering of the small cigarette pack by the packaging paper (20).

Images