A fresh flower packaging bag cutting and collecting device

Abstract

The application discloses a fresh flower packaging bag cutting and collecting device and relates to the technical field of bag making equipment. The cutting device comprises a roller, first blades, second blades and a collecting device. The roller is arranged above a conveying belt for conveying film bags. The first blades and the second blades are in arc-shaped structures so that the first blades and the second blades are in point contact with the film bags. The two ends of the first blades and the second blades are respectively mounted on the two ends of the roller through connecting structures. The first blades and the second blades are arranged at intervals and are mutually mirror-symmetrical. The collecting device is arranged at the output end of the conveying belt and is used for collecting the film bags cut by the first blades and the second blades. The arrangement can make the fresh flower packaging bag production equipment produce the packaging bags continuously and improve the production efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of bag making equipment, and particularly relates to a fresh flower packaging bag cutting and collecting device. BACKGROUND

[0002] A fresh flower packaging bag making machine is a machine for making various plastic packaging bags or packaging bags made of other materials. The packaging bags processed by the machine are mainly conical packaging bags for conveniently placing fresh flowers. At present, a fresh flower bag making machine generally has a film bag conveying device, a punching device, a hot melting device, and a punching knife device, etc. The film plastic bag conveying device needs to be temporarily stopped for conveying progress when the machine passes through each working procedure, so as to cooperate with the working procedures of the punching knife device, the punching device, etc. The machine cannot realize continuous production, resulting in reduced production efficiency.

[0003] Therefore, there is a need for a fresh flower packaging bag cutting and collecting device. SUMMARY

[0004] The application aims to provide a fresh flower packaging bag cutting and collecting device, which can continuously produce packaging bags and improve production efficiency. The specific technical scheme is as follows:

[0005] A fresh flower packaging bag cutting and collecting device, the cutting and collecting device comprises a roller, a first blade, a second blade, and a collecting device. The roller is arranged above a conveying belt for conveying a film bag. The first blade and the second blade are in an arc shape, so that the first blade and the second blade are in point contact with the film bag. The two ends of a plurality of first blades and a plurality of second blades are respectively installed at the two ends of the roller through a connecting structure, so that the cutting traces of the first blade and the second blade are at a preset angle with the conveying direction of the conveying belt. The first blade and the second blade are arranged at intervals and are mutually mirror-symmetrical, so that the cutting traces of the first blade and the second blade on the film bag are combined into a trapezoid. The collecting device is arranged at the output end of the conveying belt and is used for collecting the film bag after being cut by the first blade and the second blade.

[0006] Preferably, a plurality of mounting grooves are arranged on the roller, and a third blade is arranged on the mounting groove and is used for punching holes on the film bag. The third blade is arranged between the first blade and the second blade.

[0007] Preferably, the cutting edges of the first blade and the second blade are in a tooth shape. The collecting device comprises a recycling roller, which is connected with the film bag and is used for winding the film bag after being cut by the first blade and the second blade.

[0008] Preferably, the first blade is mounted on the surface of the roller through a first gasket, and the second blade is mounted on the surface of the roller through a second gasket; the first gasket and the second gasket are flexible sheets, so that the bottom surfaces of the first blade and the second blade are attached to the roller.

[0009] Preferably, the connecting structure comprises a first sliding part, a second sliding part, a first sleeve, a second sleeve and a locking unit; the first sleeve and the second sleeve are respectively mounted on the two ends of the roller, the first sliding part and the second sliding part are respectively mounted on the two ends of the first blade or the second blade, the first sliding part is mounted on the first sleeve, the second sliding part is mounted on the second sleeve, and the first sliding part and the second sliding part are respectively provided with a locking unit for fixing the first sliding part and the second sliding part on the first sleeve or the second sleeve.

[0010] Preferably, the locking unit comprises a first fixing hole, a second fixing hole and a fixing piece; the first sliding part and the second sliding part are respectively provided with a first fixing hole, the first sleeve and the second sleeve are respectively provided with a second fixing hole, and the fixing piece passes through the first fixing hole and the second fixing hole to fix the first sliding part on the first sleeve and fix the second sliding part on the second sleeve.

[0011] Preferably, the third blade is detachably connected with the mounting groove.

[0012] Preferably, the third blade comprises a punching cutter and a first electric heating structure, the punching cutter is connected with the first electric heating structure and located below the first electric heating structure; the conveying belt is provided with a carrier table, the film bag is laid on the carrier table, the carrier table is provided with a second electric heating structure, the first electric heating structure is electrically connected with the second electric heating structure, and the punching cutter contacts the second electric heating structure to release heat.

[0013] Preferably, the first gasket and the second gasket are groove structures and are vacuum adsorbed on the roller.

[0014] Preferably, the two end faces of the roller are provided with scale lines.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] The application provides a fresh flower packaging bag cutting and collecting device, which realizes continuous production of fresh flower packaging bags, improves production efficiency by setting a roller, a first blade, a second blade and a collecting device. The first blade and the second blade are mirror image arranged, and the two ends of the first blade and the second blade are respectively installed on the two ends of the roller through a connecting structure, so that the cutting traces of the first blade and the second blade are at a preset angle with the conveying direction of the conveying belt, the first blade and the second blade cut two sides of a trapezoidal structure on the film bag, and the upper and lower edges of the film bag are the upper base and the lower base of the trapezoidal structure. The first blade and the second blade are arc-shaped, and when the film bag is cut, the cutting edge is in point contact with the film bag, which can cut the film bag more stably and accurately, ensures the production quality, and continuously cuts the film bag without interruption through the rolling cutting mode, thereby improving the production efficiency of the packaging bag. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0018] Figure 1 It is a whole structure schematic diagram of the fresh flower packaging bag cutting and collecting device in an embodiment of the application.

[0019] Figure 2 It is a structure diagram of the cutting device in an embodiment of the application.

[0020] Figure 3 It is a sectional view of the roller.

[0021] Figure 4 It is a front view of the fresh flower packaging bag cutting and collecting device in an embodiment of the application.

[0022] Figure 5 It is a schematic diagram of the film bag after being cut by the first blade and the second blade.

[0023] Main drawing sign explanation:

[0024] 1, conveying belt; 2, collecting device; 201, recycling roller; 3, first blade; 301, first gasket; 4, second blade; 401, second gasket; 5, third blade; 501, punching cutter; 502, first electric heating structure; 503, mounting groove; 6, roller; 7, first sleeve; 8, second sleeve; 9, first sliding part; 10, second sliding part; 11, locking unit; 12, object table; 13, second electric heating structure; 14, film bag; 15, cutting trace; 16, scale line. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0026] Next, the working principle of the embodiment will be described in detail to make those skilled in the art understand the present application better:

[0027] With reference to Figure 1 The present application provides a fresh flower packaging bag cutting and collecting device 2, wherein the cutting and collecting device comprises a roller 6, a first blade 3, a second blade 4, and a collecting device 2; the roller 6 is arranged above a conveying belt 1 for conveying a film bag 14; the first blade 3 and the second blade 4 are arc-shaped structures, so that the first blade 3 and the second blade 4 are in point contact with the film bag 14; the two ends of a plurality of the first blades 3 and a plurality of the second blades 4 are respectively installed at the two ends of the roller 6 through connecting structures, so that the cutting traces 15 of the first blade 3 and the second blade 4 are at a preset angle with the conveying direction of the conveying belt 1; the first blade 3 and the second blade 4 are arranged at intervals and are mutually mirror-symmetrical, so that the cutting traces 15 of the first blade 3 and the second blade 4 on the film bag 14 are combined into a trapezoid; the collecting device 2 is arranged at the output end of the conveying belt 1 and is used for collecting the film bag 14 after being cut by the first blade 3 and the second blade 4.

[0028] The installation positions and relative angles of the first blade 3 and the second blade 4 can be adjusted according to the actual packaging bags produced. In this embodiment, the produced plastic bag has a trapezoidal structure. Therefore, the first blade 3 and the second blade 4 are mirror images of each other, and the two ends of the first blade 3 and the second blade 4 are respectively installed at the two ends of the roller 6 through a connecting structure, so that the cutting marks 15 of the first blade 3 and the second blade 4 are at a preset angle to the conveying direction of the conveyor belt 1. In this embodiment, since the produced packaging bag has a trapezoidal structure, the angle between the preset angle and the conveying direction of the conveyor belt 1 is an obtuse angle. The first blade 3 and the second blade 4 cut out two sides of the trapezoidal structure on the film bag 14, and the upper and lower sides of the film bag 14 are the upper and lower bases of the trapezoidal structure. The first blade 3 and the second blade 4 are arc-shaped. When cutting the film bag 14, the cutting edge makes point contact with the film bag 14, which can cut the film bag 14 more smoothly and accurately, ensuring production quality. In addition, by rolling the cutting method, the film bag 14 can be cut continuously without interruption, improving the production efficiency of the packaging bag. The first blade 3 and the second blade 4 can have serrated or straight cutting edges. A straight cutting edge can cut the film bag 14, and the cut film bag 14 is directly processed into a flower packaging bag. This flower packaging bag enters the collection device 2 via conveyor belt 1 and is stored therein. A serrated cutting edge leaves neatly spaced cuts on the film bag 14. At this point, the film bag 14 is still connected and can be torn open along the spaced cuts manually or by other means to form a flower packaging bag. In one implementation of this embodiment, the collection device 2 includes a recovery roller 201 connected to the film bag 14, which rolls up the film bag 14 after being cut by the first blade 3 and the second blade 4. Since the film bag 14 processed by the serrated cutting edge is still connected, it can be connected to the recovery roller 201 to roll up and package the processed film bag 14. Compared to a straight blade, since the film bag 14 is rectangular, when multiple trapezoidal packaging bags are continuously cut from the film bag 14, the packaging bags have different orientations, that is, the top and bottom orientations are different. If they are collected in a unified manner, it will not be conducive to subsequent packaging. However, this problem can be overcome by cutting with a toothed blade and then collecting with a recycling roller 201.

[0029] Among them, reference Figure 2 In one embodiment of the present invention, the roller 6 is provided with a plurality of mounting grooves 503, and a third blade 5 is mounted on the mounting groove 503 for punching holes in the film bag 14. The third blade 5 is mounted between the first blade 3 and the second blade 4.

[0030] In the prior art, the film bag 14 is also punched when it is cut, and the conveying is temporarily stopped, which reduces the production efficiency. In the present embodiment, the third blade 5 is arranged between the first blade 3 and the second blade 4. When the film bag 14 is cut, the third blade 5 punches the film bag 14 synchronously in a rolling manner, so that the punching process of the film bag 14 does not have to be stopped, and continuous production is realized. At the same time, the cutting and punching processes are centralized, and the utilization rate of the production space is improved. Further, in one implementation, the third blade 5 includes a punching cutter 501 and a first heating structure 502. The punching cutter 501 is connected to the first heating structure 502 and located below the first heating structure 502. A carrier 12 is arranged on the conveying belt 1, and the film bag 14 is laid on the carrier 12. A second heating structure 13 is arranged on the carrier 12, and the first heating structure 502 is electrically connected to the second heating structure 13. The punching cutter 501 releases heat by contacting the second heating structure 13. After the film bag 14 is punched, the edges of the holes are easily torn due to stress concentration, such as during handling or packaging. The hot melting treatment can make the material of the hole edges locally melt by the cooperation of the first heating structure 502 and the second heating structure 13, form a smooth "melted edge", improve the strength, and prevent the plastic film of the hole edges from delaminating or stretching and deforming. For details, refer to Figure 2 and Figure 4 The first heating structure 502 can be a high-resistance material. During the punching process of the film bag 14 by the punching cutter 501, when the punching cutter 501 contacts the second heating structure 13, the first heating structure 502 forms an electric circuit with the second heating structure 13, so that the first heating structure 502 releases heat to heat treat the edges of the holes. The electronic components of the first heating structure 502 can be integrated inside the first heating structure 502. The number of third blades 5 in the mounting groove 503 can be adjusted according to actual production conditions. The third blade 5 and the mounting groove 503 can be detachably connected, such as threaded connection, buckle connection, etc., to facilitate the production of flower packaging bags.

[0031] Referring to Figure 3 The first blade 3 is installed on the surface of the roller 6 by a first gasket 301, and the second blade 4 is installed on the surface of the roller 6 by a second gasket 401. The first gasket and the second gasket are flexible sheets, so that the bottom surfaces of the first blade 3 and the second blade 4 are attached to the roller 6.

[0032] Wherein, considering that the first blade 3 and the second blade 4 are both rigid arc-shaped structures, in order to ensure cutting accuracy, they need to be completely fitted with the surface of the roller 6, by setting the first gasket 301 or the second gasket 401 between the roller 6 and the first blade 3 or the second blade 4, the first blade 3 and the second blade 4 can be stably fitted on the surface of the roller 6, ensuring cutting accuracy. And it can reduce the machining accuracy of the bottom surface of the first blade 3 and the second blade 4, and reduce the cost. Further, the first gasket 301 and the second gasket 401 are groove structures, which are vacuum adsorbed on the roller 6. After adjusting the distance or other installation conditions of the first blade 3 and the second blade 4, the first gasket 301 is used to fix and fit the first blade 3, and then the two ends of the first blade 3 are fixed, ensuring the installation accuracy of the first blade 3. Similarly, the installation of the second blade 4 is the same.

[0033] Wherein, referring to Figure 2 In an implementation manner of the embodiment, the connecting structure includes a first sliding part 9, a second sliding part 10, a first sleeve 7, a second sleeve 8 and a locking unit 11; the first sleeve 7 and the second sleeve 8 are respectively installed at both ends of the roller 6, the first sliding part 9 and the second sliding part 10 are respectively installed at both ends of the first blade 3 or the second blade 4, the first sliding part 9 is installed on the first sleeve 7, the second sliding part 10 is installed on the second sleeve 8, and the first sliding part 9 and the second sliding part 10 are respectively provided with the locking unit 11, which is used to fix the first sliding part 9 and the second sliding part 10 on the first sleeve 7 or the second sleeve 8 respectively.

[0034] The two ends of the first blade 3 are connected with the two ends of the roller 6 through the first sliding part 9 and the second sliding part 10 and are fixed through the locking unit 11, so that the distance between the first blade 3 and the second blade 4 can be adjusted through the first sliding part 9 and the second sliding part 10 to adapt to different packaging bag production specifications, and in addition, the first blade 3 and the second blade 4 can also be replaced by disassembling the first sliding part 9 and the second sliding part 10, facilitating later maintenance and production. Specifically, the first sliding part 9 and the second sliding part 10 can have a groove structure, which is sleeved on the end face of the first sleeve 7 or the second sleeve 8, so that the first sliding part 9 slides on the first sleeve 7, and the locking unit 11 can include a first fixing hole, a second fixing hole and a fixing piece; the first sliding part 9 and the second sliding part 10 are provided with the first fixing hole, the first sleeve 7 and the second sleeve 8 are provided with the second fixing hole, and the fixing piece passes through the first fixing hole and the second fixing hole to fix the first sliding part 9 on the first sleeve 7 and fix the second sliding part 10 on the second sleeve 8. The first sliding part 9 and the second sliding part 10 can be threadedly connected with the two ends of the first blade 3, facilitating replacement or maintenance of the first blade 3. Similarly, the second blade 4 and the second sliding part 10 and the second sleeve 8 are arranged in the same way as the first blade 3, and details are not described here. The two end faces of the roller 6 are provided with scale lines 16. The distance between the first blade 3 and the second blade 4 can be adjusted conveniently, and the installation and maintenance efficiency is improved.

[0035] The foregoing descriptions of specific exemplary embodiments of the application are presented for the purpose of illustration and description. They are not intended to be exhaustive or to limit the application to the precise forms described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to explain the principles of the application and its practical application, to thereby enable others skilled in the art to best utilize the application, and various changes and modifications can be made thereto without departing from the intended spirit and scope of the application.

Claims

1. A flower packaging bag cutting and collecting device, characterized in that, The cutting and collecting device includes a roller (6), a first blade (3), a second blade (4), and a collecting device (2); The roller (6) is positioned above the conveyor belt (1) for transporting the film bag (14), and the first blade (3) and the second blade (4) are arc-shaped so that the first blade (3) and the second blade (4) make point contact with the film bag (14). The ends of a plurality of first blades (3) and a plurality of second blades (4) are respectively mounted on the ends of the roller (6) by a connecting structure, so that the cutting marks (15) of the first blades (3) and the second blades (4) are at a preset angle to the transmission direction of the conveyor belt (1); The first blade (3) and the second blade (4) are spaced apart and are mirror-symmetrical to each other, so that the cutting marks (15) of the first blade (3) and the second blade (4) on the film bag (14) are combined into a trapezoidal shape; The collecting device (2) is located at the output end of the conveyor belt (1) and is used to collect the film bags (14) after being cut by the first blade (3) and the second blade (4). The roller (6) is provided with a plurality of mounting slots (503), and a third blade (5) is mounted on the mounting slots (503) for punching holes in the film bag (14). The third blade (5) is installed between the first blade (3) and the second blade (4). The first blade (3) is mounted on the surface of the roller (6) via a first gasket (301), and the second blade (4) is mounted on the surface of the roller (6) via a second gasket (401); The first gasket (301) and the second gasket (401) are both flexible sheets, so that the bottom surfaces of the first blade (3) and the second blade (4) are attached to the roller (6); The connection structure includes a first sliding part (9), a second sliding part (10), a first sleeve (7), a second sleeve (8), and a locking unit (11). The first sleeve (7) and the second sleeve (8) are respectively installed at both ends of the roller (6), the first sliding part (9) and the second sliding part (10) are respectively installed at both ends of the first blade (3) or the second blade (4), the first sliding part (9) is installed on the first sleeve (7), the second sliding part (10) is installed on the second sleeve (8), and the first sliding part (9) and the second sliding part (10) are respectively provided with locking units (11) for fixing the first sliding part (9) and the second sliding part (10) on the first sleeve (7) or the second sleeve (8); The locking unit (11) includes a first fixing hole, a second fixing hole, and a fixing member; The first sliding part (9) and the second sliding part (10) are each provided with a first fixing hole, and the first sleeve (7) and the second sleeve (8) are each provided with a second fixing hole. The fixing member passes through the first fixing hole and the second fixing hole to fix the first sliding part (9) on the first sleeve (7) and fix the second sliding part (10) on the second sleeve (8). The third blade (5) is detachably connected to the mounting groove (503); The third blade (5) includes a punching cutter (501) and a first heating structure (502). The punching cutter (501) is connected to the first heating structure (502) and is located below the first heating structure (502). A platform (12) is provided on the conveyor belt (1), and the film bag (14) is laid on the platform (12). A second electric heating structure (13) is provided on the platform (12). The first electric heating structure (502) is electrically connected to the second electric heating structure (13). Heat is released by contacting the second electric heating structure (13) through a punch cutter (501). The first gasket (301) and the second gasket (401) have a groove structure and are vacuum-adsorbed onto the roller (6).

2. The flower packaging bag cutting and collecting device according to claim 1, characterized in that, The cutting edges of the first blade (3) and the second blade (4) are toothed; The collection device (2) includes a recycling roller (201) connected to the film bag (14) to roll up the film bag (14) after it has been cut by the first blade (3) and the second blade (4).

3. The flower packaging bag cutting and collecting device according to claim 1, characterized in that, The roller (6) has scale lines (16) on its two end faces.

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