Flower packaging bag cutting and collecting device

Abstract

The invention discloses a fresh flower packaging bag cutting and collecting device, and relates to the technical field of bag making equipment, and the cutting device comprises a roller, a first blade, a second blade and a collecting device; the roller is arranged above a conveying belt used for conveying a film bag, and the first blade and the second blade are of an arc-shaped structure so that the first blade and the second blade can make point contact with the film bag. The two ends of the first blades and the two ends of the second blades are installed at the two ends of the roller through connecting structures correspondingly, the first blades and the second blades are arranged at intervals and are in mirror symmetry, and the collecting device is arranged at the output end of the conveying belt and used for collecting film bags cut by the first blades and the second blades. Through the arrangement, the fresh flower packaging bag production equipment can continuously produce packaging bags, and the production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of bag making equipment, and in particular relates to a cutting and collecting device for flower packaging bags. Background Art

[0002] Flower packaging bag making machine is a machine used to make various plastic packaging bags or other material packaging bags. The packaging bags it processes are mainly conical packaging bags for convenient placement of flowers. At present, flower bag making machines generally have film bag conveying devices, punching devices, hot melt devices and punching devices. The bag making machine needs to temporarily stop the conveying progress of the film plastic bag conveying device when passing each process to cooperate with the work of the punching device, punching device and other processes. It is impossible to achieve continuous production, resulting in reduced production efficiency.

[0003] Therefore, a flower packaging bag cutting and collecting device is needed. Summary of the invention

[0004] The purpose of the present invention is to provide a flower packaging bag cutting and collecting device, which can produce packaging bags continuously and improve production efficiency. The specific technical solution is as follows:

[0005] A cutting and collecting device for flower packaging bags, the cutting device comprising a roller, a first blade, a second blade, and a collecting device; the roller is arranged above a conveyor belt for transmitting film bags, the first blade and the second blade are arc-shaped structures, so that the first blade and the second blade are in point contact with the film bags; the two ends of a plurality of the first blades and a plurality of the second blades are respectively mounted on the two ends of the roller through a connecting structure, so that the cutting marks of the first blade and the second blade are at a preset angle to the transmission direction of the conveyor belt; the first blade and the second blade are arranged at intervals, and the first blade and the second blade are mirror-symmetrical to each other, so that the cutting marks of the first blade and the second blade on the film bags are combined into a trapezoid; the collecting device is arranged at the output end of the conveyor belt, and is used to collect the film bags cut by the first blade and the second blade.

[0006] Preferably, a plurality of mounting grooves are provided on the drum, and a third blade is installed on the mounting groove for punching holes on the film bag, and the third blade is installed between the first blade and the second blade.

[0007] Preferably, the cutting edges of the first blade and the second blade are tooth-shaped; the collecting device comprises a recovery roller, which is connected to the film bag and rolls up the film bag cut by the first blade and the second blade.

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

[0009] Preferably, the connecting structure includes 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 installed at two ends of the roller, the first sliding part and the second sliding part are respectively installed at two ends of the first blade or the second blade, the first sliding part is installed on the first sleeve, and the second sliding part is installed on the second sleeve, and the first sliding part and the second sliding part are respectively provided with locking units for fixing the first sliding part and the second sliding part on the first sleeve or the second sleeve, respectively.

[0010] Preferably, the locking unit includes a first fixing hole, a second fixing hole and a fixing piece; the first sliding part and the second sliding part are both provided with a first fixing hole, the first sleeve and the second sleeve are both 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 fixes the second sliding part on the second sleeve.

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

[0012] Preferably, the third blade includes a punching cutter and a first electric heating structure, the punching cutter is connected to the first electric heating structure and is located below the first electric heating structure; a loading platform is provided on the conveyor belt, the film bag is laid on the loading platform, a second electric heating structure is provided on the loading platform, the first electric heating structure is electrically connected to the second electric heating structure, and heat is released by the contact between the punching cutter and the second electric heating structure.

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

[0014] Preferably, scale lines are provided on the two end surfaces of the drum.

[0015] Compared with the existing technology, the present invention has the following beneficial effects:

[0016] The present invention provides a flower packaging bag cutting and collecting device, which realizes continuous production of flower packaging bags by setting a roller, a first blade, a second blade, and a collecting device, thereby improving production efficiency. The first blade and the second blade are arranged in mirror image, and the two ends of the first blade and the second blade are respectively installed at the two ends of the roller through a connecting structure, so that the cutting marks of the first blade and the second blade are at a preset angle with the transmission direction of the conveyor belt, the first blade and the second blade cut two side edges of a trapezoidal structure on the film bag, and the upper and lower sides of the film bag are the upper bottom and the lower bottom of the trapezoidal structure, the first blade and the second blade are arranged in an arc shape, when cutting the film bag, the cutting edge contacts the film bag, and the film bag can be cut more steadily and accurately, ensuring production quality, and the film bag can be cut continuously and uninterruptedly by rolling cutting, thereby improving the production efficiency of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0018] Figure 1 It is a schematic diagram of the overall structure of a flower packaging bag cutting and collecting device in one embodiment of the present invention.

[0019] Figure 2 is a structural diagram of a cutting device in one embodiment of the present invention.

[0020] Figure 3 It is a cross-sectional view of the drum.

[0021] Figure 4 It is a front view of a cutting and collecting device for flower packaging bags in one embodiment of the present invention.

[0022] Figure 5 Schematic diagram of a film bag after being cut by a first blade and a second blade.

[0023] Description of main reference numerals:

[0024] 1. Conveyor belt; 2. Collecting device; 201. Recovery 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. Stage; 13. Second electric heating structure; 14. Film bag; 15. Cutting mark; 16. Scale line. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Next, the working principle in this embodiment is described in detail so that those skilled in the art can better understand the present invention:

[0027] refer to Figure 1 The present invention provides a flower packaging bag cutting and collecting device 2, wherein the cutting 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 conveyor belt 1 for conveying film bags 14, and 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 bags 14; the two ends of a plurality of the first blades 3 and the second blades 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; the first blade 3 and the second blade 4 are arranged at intervals, and the first blade 3 and the second blade 4 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 bags 14 are combined into a trapezoid; the collecting device 2 is arranged at the output end of the conveyor belt 1, and is used to collect the film bags 14 cut by the first blade 3 and the second blade 4.

[0028] Among them, the installation positions and mutual 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 plane of the produced plastic bag is a trapezoidal structure, so the first blade 3 and the second blade 4 are mirror-set, 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 transmission direction of the conveyor belt 1. In this embodiment, since the produced packaging bag is 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 two side edges of the trapezoidal structure on the film bag 14, and the upper and lower sides of the film bag 14 are the upper bottom and lower bottom of the trapezoidal structure. The first blade 3 and the second blade 4 are arranged in an arc shape. When cutting the film bag 14, the blade edge contacts the film bag 14 at a point, which can cut the film bag 14 more smoothly and accurately to ensure production quality. In addition, through rolling cutting, the film bag 14 can be cut continuously and uninterruptedly to improve the production efficiency of the packaging bag. The cutting edges of the first blade 3 and the second blade 4 can be toothed or straight, etc., wherein the straight-edged blade can cut the film bag 14, and the film bag 14 after cutting is directly processed into a flower packaging bag, which enters the collecting device 2 through the conveyor belt 1 and is stored therein. The toothed blade leaves neatly arranged interval cuts on the film bag 14, and the film bag 14 is still connected together at this time, and the film bag 14 can be torn along the interval cuts by manual or other means to form a flower packaging bag. In one implementation of this embodiment, the collecting device 2 includes a recycling roller 201, which is connected to the film bag 14 to roll up the film bag 14 cut by the first blade 3 and the second blade 4. Since the film bag 14 processed by the toothed blade is still connected together, the film bag 14 can be connected to the recycling roller 201 to roll up and pack the processed film bag 14. Compared with a straight cutting edge, since the film bag 14 is rectangular, when a plurality of trapezoidal packaging bags are continuously cut out on the film bag 14, the directions of the packaging bags are different, that is, the directions of the upper bottom and the lower bottom are different. If they are collected uniformly, it will be inconvenient for subsequent packaging. However, this problem can be overcome by cutting with a serrated cutting edge and then collecting with a recovery roller 201.

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

[0030] Among them, in the existing process, when punching the film bag 14, the conveying will also be temporarily stopped, resulting in reduced production efficiency. In this embodiment, the third blade 5 is arranged between the first blade 3 and the second blade 4. When cutting the film bag 14, the third blade 5 synchronously punches the film bag 14 by rolling, so that the punching process of the film bag 14 does not need to be paused, and continuous production is achieved. At the same time, the cutting and punching processes are centralized to improve the utilization rate of the production space. Furthermore, in one implementation, the third blade 5 includes a punching cutter 501 and a first electric heating structure 502, the punching cutter 501 is connected to the first electric heating structure 502 and is located below the first electric heating structure 502; a loading platform 12 is provided on the conveyor belt 1, the film bag 14 is laid on the loading platform 12, a second electric heating structure 13 is provided on the loading platform 12, the first electric heating structure 502 is electrically connected to the second electric heating structure 13, and the heat is released by the contact between the punching cutter 501 and the second electric heating structure 13. Among them, after the film bag 14 is punched, the edge of the hole is easily torn due to stress concentration, such as during transportation or packaging. Hot melt treatment can make the material at the edge of the hole partially melt through the cooperation of the first electric heating structure 502 and the second electric heating structure 13, forming a smooth "melted edge" to improve the strength. And prevent the plastic film at the edge of the hole from delamination or stretching deformation. Specifically, refer to Figure 2 and Figure 4 The first electrothermal structure 502 can be a high-resistance material. When the punching cutter 501 is punching holes in the film bag 14, when the punching cutter 501 contacts the second electrothermal structure 13, the first electrothermal structure 502 and the second electrothermal structure 13 form an electric circuit, so that the first electrothermal structure 502 releases heat to heat-treat the edge of the hole. The electronic parts of the first electrothermal structure 502 can be integrated inside the first electrothermal structure 502, and the number of the third blades 5 in the mounting groove 503 can be adjusted according to the actual production situation. The third blade 5 and the mounting groove 503 can be detachably connected, which can be a threaded connection, a snap connection, etc., to facilitate the production of flower packaging bags.

[0031] Among them, reference Figure 3 The first blade 3 is installed on the surface of the drum 6 through a first gasket 301, and the second blade 4 is installed on the surface of the drum 6 through a second gasket 401; the first patch and the second patch are both flexible sheets, so that the bottom surfaces of the first blade 3 and the second blade 4 are attached to the drum 6.

[0032] Among them, considering that the first blade 3 and the second blade 4 are both rigid arc structures, in order to ensure cutting accuracy, they need to be completely fitted with the surface of the drum 6. By setting the first gasket 301 or the second gasket 401 between the drum 6 and the first blade 3 or the second blade 4, the first blade 3 and the second blade 4 can be firmly fitted on the surface of the drum 6 to ensure cutting accuracy. And it can reduce the processing accuracy of the bottom surface of the first blade 3 and the second blade 4, and reduce costs. Further, the first gasket 301 and the second gasket 401 are groove structures, which are adsorbed on the drum 6 by vacuum. After the spacing between the first blade 3 and the second blade 4 or other installation conditions are adjusted, the first blade 3 can be fixed and fitted by the first gasket 301, and then the two ends of the first blade 3 are fixed to ensure the installation accuracy of the first blade 3. Similarly, the installation of the second blade 4 is also the same.

[0033] Among them, reference Figure 2 In one implementation of the present 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 drum 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, and 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 respectively.

[0034] The two ends of the first blade 3 are connected to the two ends of the drum 6 through the first sliding part 9 and the second sliding part 10, and are fixed by 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. 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, which is convenient for later maintenance and production. Specifically, the first sliding part 9 and the second sliding part 10 can be provided with a groove structure, and the groove structure is sleeved on the end surface 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 member; the first sliding part 9 and the second sliding part 10 are both provided with a first fixing hole, and the first sleeve 7 and the second sleeve 8 are both 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 fixes 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 to the two ends of the first blade 3, which is convenient for replacement or maintenance of the first blade 3. Similarly, the second blade 4, the second sliding part 10 and the second sleeve 8 are arranged in the same manner as the first blade 3, and are not repeated here. The two end surfaces of the roller 6 are provided with scale lines 16. It is convenient to adjust the distance between the first blade 3 and the second blade 4, and improve the efficiency of installation and maintenance.

[0035] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed without departing from the principles and purpose of the present invention after reading this specification, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A flower packaging bag cutting and collecting device (2), characterized in that: The cutting 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 conveyor belt (1) for transmitting 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); Two ends of the plurality of first blades (3) and the plurality of second blades (4) are respectively mounted on two ends of the roller (6) via a connection structure, so that the cutting marks (15) of the first blades (3) and the second blades (4) form a preset angle with the transmission direction of the conveyor belt (1); The first blade (3) and the second blade (4) are arranged at an interval, and the first blade (3) and the second blade (4) are mirror-symmetrical to each other, so that the cutting marks (15) on the film bag (14) by the first blade (3) and the second blade (4) are combined into a trapezoid; The collecting device (2) is arranged at the output end of the conveyor belt (1) and is used to collect the film bags (14) cut by the first blade (3) and the second blade (4).

2. The flower packaging bag cutting and collecting device (2) according to claim 1, characterized in that: 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 on the film bag (14). The third blade (5) is mounted between the first blade (3) and the second blade (4).

3. The flower packaging bag cutting and collecting device (2) according to claim 2, characterized in that: The cutting edges of the first blade (3) and the second blade (4) are tooth-shaped; The collecting device (2) comprises a recovery roller (201), wherein the recovery roller (201) is connected to the film bag (14) and rolls up the film bag (14) after being cut by the first blade (3) and the second blade (4).

4. The flower packaging bag cutting and collecting device (2) according to claim 1, characterized in that: The first blade (3) is mounted on the surface of the drum (6) via a first gasket (301), and the second blade (4) is mounted on the surface of the drum (6) via a second gasket (401); The first patch and the second patch 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).

5. The flower packaging bag cutting and collecting device (2) according to claim 1, characterized in that: The connection structure comprises 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 mounted on the two ends of the roller (6); the first sliding part (9) and the second sliding part (10) are respectively mounted on the two ends of the first blade (3) or the second blade (4); the first sliding part (9) is mounted on the first sleeve (7) and the second sliding part (10) is mounted on the second sleeve (8); 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).

6. The flower packaging bag cutting and collecting device (2) according to claim 5, characterized in that: The locking unit (11) comprises a first fixing hole, a second fixing hole and a fixing member; The first sliding part (9) and the second sliding part (10) are both provided with a first fixing hole, and the first sleeve (7) and the second sleeve (8) are both 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 fixes the second sliding part (10) on the second sleeve (8).

7. The flower packaging bag cutting and collecting device (2) according to claim 2, characterized in that: The third blade (5) is detachably connected to the mounting groove (503).

8. The flower packaging bag cutting and collecting device (2) according to claim 2, characterized in that: The third blade (5) comprises a perforating cutter (501) and a first electric heating structure (502), wherein the perforating cutter (501) is connected to the first electric heating structure (502) and is located below the first electric heating structure (502); The conveyor belt (1) is provided with a loading platform (12), the film bag (14) is laid on the loading platform (12), a second electric heating structure (13) is provided on the loading platform (12), the first electric heating structure (502) is electrically connected to the second electric heating structure (13), and heat is released by contacting the second electric heating structure (13) through a punching cutter (501).

9. The flower packaging bag cutting and collecting device (2) according to claim 4, characterized in that: The first gasket (301) and the second gasket (401) are groove structures and are adsorbed on the roller (6) by vacuum.

10. The flower packaging bag cutting and collecting device (2) according to claim 5, characterized in that: Scale lines (16) are provided on the two end surfaces of the roller (6).

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