Degradable square bottom bag forming device

Abstract

The utility model relates to the technical field of degradable square bag processing, in particular to a degradable square bottom bag forming device which comprises a rotating disc and a cutting channel. A film cutting top disc and a film cutting bottom disc are arranged on the upper side and the lower side of the cutting channel correspondingly, the film cutting bottom disc is close to and away from the film cutting top disc, the film cutting top disc is arranged in a static mode, a cutting knife is installed at the bottom of the film cutting top disc, and a knife groove matched with the cutting knife for contact cutting is formed in the top of the film cutting bottom disc. The lifting rods movably penetrate through the film cutting top disc, and the tops of the two sets of lifting rods are jointly connected with a rotary lifting assembly. According to the device, the cutter is controlled to be matched with the cutter groove under the action of the rotating disc, the circulating swing piece, the matched lifting base plate, the lifting rod and other structures, and compared with an air cylinder and a hydraulic control lifting mode, the device is simpler in structure, low in manufacturing and using cost and convenient to maintain and replace.

Description

Technical Field

[0001] This utility model relates to the field of biodegradable square bag processing technology, specifically a biodegradable square bottom bag forming device. Background Technology

[0002] In the forming process of square bottom bags, a film cutting operation is usually required. The specific steps are as follows:

[0003] Material preparation: First, prepare plastic film rolls.

[0004] Printing (if required): If the bag requires a design or text, print it first.

[0005] Film cutting: Cut the film to the appropriate size according to the bag dimensions, ensuring that each bag is the same size.

[0006] Shaping: The film is folded and sealed by heat sealing or other methods to form the basic shape of a square bottom bag.

[0007] Bottom forming: Fold and seal the bottom of the bag to form a square bottom structure.

[0008] Trimming: Remove excess material to ensure neat edges.

[0009] Quality inspection and packaging: After inspecting the quality of the bags, they are packaged.

[0010] Therefore, film cutting is a crucial step in ensuring accurate bag dimensions. Existing biodegradable square bags often employ complex film cutting devices, particularly the lifting mechanism controlling the cutting blade. These devices typically use pneumatic or hydraulic control. Pneumatic control suffers from high energy consumption, wear-prone cylinder seals requiring regular replacement, and high maintenance costs and time. Hydraulic control mechanisms, on the other hand, are complex in structure, have low energy efficiency, and slow response times.

[0011] Therefore, in view of the above-mentioned problems, this technical solution proposes a biodegradable square bottom bag forming device. Utility Model Content

[0012] The purpose of this invention is to provide a biodegradable square bottom bag forming device to solve the problems mentioned in the background art.

[0013] To achieve the above objectives, this utility model provides the following technical solution:

[0014] A biodegradable square bottom bag forming device includes a rotary disk and a cutting channel. A film cutting top plate and a film cutting bottom plate are respectively arranged on the upper and lower sides of the cutting channel. The film cutting bottom plate is closer to the film cutting top plate and farther away from the film cutting top plate to automatically cut the biodegradable square bottom bag along the space between the two. The film cutting top plate is stationary. A cutting blade is installed at the bottom of the film cutting top plate. A cutting groove is opened on the top of the film cutting bottom plate to cooperate with the cutting blade for cutting. Two sets of lifting rods are symmetrically installed on both sides of the film cutting bottom plate. The lifting rods move through the film cutting top plate. The top of the two sets of lifting rods are connected to a rotary lifting component, which is controlled to rotate by the rotary disk.

[0015] The rotary lifting assembly includes a lifting base plate connected to the top of two sets of lifting rods. A connecting block is installed at the top center of the lifting base plate. A swing connecting rod is oscillating upwards on one side of the connecting block via a swing connecting shaft. A circulating swing component is rotatably connected to the top of the swing connecting rod via a swing connecting shaft. The circulating swing component is rotatably connected to the rotating disk. That is, when the rotating disk is running, the circulating swing component is controlled to swing up and down cyclically, which in turn drives the swing connecting rod to rise and fall cyclically, thereby controlling the lifting base plate at the bottom of the swing connecting rod to rise and fall. This controls the film cutting tray to cyclically approach the bottom of the film cutting tray. The biodegradable square bottom bag is cut and segmented using the cutting blade and the cutting groove. In other words, under the action of the rotating disk, the circulating swing component, the lifting base plate, and the lifting rods, the cutting blade and the cutting groove are controlled. Compared with cylinder and hydraulic lifting control, this solution has a simpler structure, lower manufacturing and usage costs, and is easier to maintain and replace.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a servo motor to drive the rotating disk to rotate, and then controlling the slide rod to slide in the lifting track on one side of the rotating disk, the slide rod, swing rod one, and swing rod two are controlled to perform cyclic lifting and swinging, thereby driving the bottom film cutting plate to move towards the top film cutting plate, realizing the automated film cutting of biodegradable square bottom bags passing through the cutting channel. In terms of lifting function, this device adopts a simpler and more energy-saving linkage structure, and the overall operation is convenient and efficient. Attached Figure Description

[0017] Figure 1 This is a partial three-dimensional structural diagram of a biodegradable square bottom bag forming device.

[0018] Figure 2 This is a partial front view schematic diagram of a biodegradable square bottom bag forming device.

[0019] Figure 3 This is a partial top view schematic diagram of a biodegradable square bottom bag forming device.

[0020] Figure 4 This is a partial structural diagram of the cutting blade and groove in a biodegradable square bottom bag forming device.

[0021] The components include: servo motor 10, film cutting base plate 11, film cutting top plate 12, biodegradable square bottom bag 13, rotating disk 14, lifting track 15, output shaft 16, slide bar 17, swing rod one 18, swing rod two 19, sleeve 20, rotating shaft 21, connecting block 22, swing connecting shaft 23, lifting base plate 24, rod seat 25, lifting rod 26, cutting blade 27, blade groove 28, and swing connecting rod 29. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Please see Figures 1-4A biodegradable square bottom bag forming device includes a rotary disk 14 and a cutting channel. A film cutting top disk 12 and a film cutting bottom disk 11 are respectively arranged on the upper and lower sides of the cutting channel. The film cutting bottom disk 11 is closer to and farther away from the film cutting top disk 12 to automatically cut the biodegradable square bottom bag 13 along the space between the two. The film cutting top disk 12 is stationary. A cutting blade 27 is installed at the bottom of the film cutting top disk 12. A cutting groove 28 is opened on the top of the film cutting bottom disk 11 to cooperate with the cutting blade 27 for cutting. Two sets of lifting rods 26 are symmetrically installed on both sides of the film cutting bottom disk 11. The lifting rods 26 move through the film cutting top disk 12. The top of the two sets of lifting rods 26 are connected to a rotary lifting component. The rotary lifting component is controlled to rotate by the rotary disk 14.

[0027] The rotary lifting assembly includes a lifting base plate 24 connected to the top of two sets of lifting rods 26. A connecting block 22 is installed at the top center of the lifting base plate 24. A swing connecting rod 29 is connected to one side of the connecting block 22 via a swing connecting shaft 23. A circulating swinging component is rotatably connected to the top of the swing connecting rod 29 via the swing connecting shaft 23. The circulating swinging component is rotatably connected to the rotating disk 14. That is, when the rotating disk 14 is running, the circulating swinging component is controlled to swing up and down cyclically, which drives the swing connecting rod 29 to rise and fall cyclically. This, in turn, controls the lifting base plate 24 at the bottom of the swing connecting rod 29 to rise and fall, thereby controlling the film cutting tray 11 to cyclically approach the bottom of the film cutting tray 12. The cutting blade 27 and the cutting groove 28 are used to cut and segment the biodegradable square bottom bag. That is, under the action of the rotating disk 14, the circulating swinging component, the lifting base plate 24, the lifting rods 26, etc., the cutting blade 27 and the cutting groove 28 are controlled to cooperate. Compared with the cylinder and hydraulic control lifting, this solution has a simpler structure, lower manufacturing and use costs, and is easy to maintain and replace.

[0028] In this embodiment of the invention, the lifting base plate 24 is arranged in parallel with the film cutting base plate 11 and the film cutting top plate 12. Meanwhile, a rod seat 25 is fitted in the middle of the lifting rod 26. The rod seat 25 can be used to position the lifting rod 26 in a vertical state, so that the lifting rod 26 can be stably vertically lifted and lowered.

[0029] The cutting blade 27 and the groove 28 have an isosceles triangular structure in their vertical cross sections. When the groove 28 moves toward the cutting blade 27, it can quickly and stably cut the biodegradable square bottom bag.

[0030] In one embodiment of the present invention, the cyclic swinging component includes an output shaft 16 connected to the output end of a servo motor 10. A circular rotating disk 14 is mounted at the end of the output shaft 16. An arc-shaped lifting track 15 is provided on the side edge of the rotating disk 14. A slide rod 17 is provided at one end of the lifting track 15, sliding along the inside of the lifting track 15. One end of the slide rod 17 is connected to a swing rod 18. A sleeve 20 is mounted at the other end of the swing rod 18. A swing rod 29 is offset from the side of the sleeve 20 relative to the swing rod 18. The end of the swing rod 29 is rotatably connected to the top of the swing rod 29 via a swing connecting shaft 23. At the same time, a rotating shaft 21 is rotatably provided in the middle of the sleeve 20. Both ends of the rotating shaft 21 are supported by support sleeves. Positioning is achieved by connecting a support rod to the bottom of the rotating disk 14 for stability, and the output shaft 16 is also supported and positioned by a support sleeve. That is, when the rotating disk 14 drives the output shaft 16 to rotate, the rotating disk 14 is controlled to rotate. At this time, the slide rod 17 slides along the inside of the lifting track 15. When it encounters the arc-shaped groove, the sliding limit between the slide rod 17 and the lifting track 15 controls the swing rod 18 connected to the slide rod 17 to swing. At this time, the sleeve 20 swings synchronously. Then the swing rod 29 is connected to the sleeve 20, and the swing rod 29 is controlled to swing in the opposite direction. Thus, with the connection of the connecting block 22, the swing connecting shaft 23, and the swing connecting rod 29, the height of the lifting rod 26 at the bottom of the lifting base plate 24 is controlled to rise and fall.

[0031] As a preferred embodiment of the present invention, it should be noted that the positioning and connection distribution of the biodegradable square bottom bag 13, the positioning of the rod seat 25, the fixing of the support sleeve rod, and the support rod in this technical solution are all designed according to the actual layout environment of the device, and will not be described in detail here.

[0032] The working principle of this utility model is as follows: In the idle position of this device, all the above-mentioned driving components, which refer to power elements, electrical components and suitable power supplies, are connected by wires. The electrical components are connected in sequence. The detailed connection method is known in the field. The following mainly introduces the working principle and process, and does not describe the electrical control. The biodegradable square bottom bag to be cut is conveyed into the cutting channel. Then, the servo motor 10 is controlled to rotate the rotating disk 14 at a reasonable speed. Then, the sliding rod 17 is controlled to swing by sliding in the lifting track 15. Then, under the connection of the sleeve 20 and the swing rod 18, the bottom lifting plate 24 is driven to lift and lower in a cycle. Then, the cutting blade 27 and the cutting groove 28 are controlled to cooperate to automatically cut the biodegradable square bottom bag.

[0033] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A degradable gusseted bag forming apparatus, characterized by, The utility model provides cutting channel includes rotating disc (14), cutting channel is provided with cutting film top disc (12) and cutting film bottom disc (11) respectively on the upside and downside, cutting film bottom disc (11) is close to and far from cutting film top disc (12), cutting film top disc (12) is in stationary setting, cutting film top disc (12) bottom is installed cutting knife (27), cutting film bottom disc (11) top is provided with the knife groove (28) of cutting knife (27) cooperation contact cutting, cutting film bottom disc (11) both sides are symmetrically installed two groups of lifting rod (26), lifting rod (26) passes through cutting film top disc (12) and is active, and two groups of lifting rod (26) top are jointly connected with rotating type lifting assembly; Rotating type lifting assembly includes lifting base plate (24) that is jointly connected at two groups of lifting rod (26) top, lifting base plate (24) top middle part is installed with connecting block (22), connecting block (22) one side is upward swingly connected with swing connecting rod (29) through swing connecting shaft (23), swing connecting rod (29) top is rotatably connected with cyclic swing piece through swing connecting shaft (23), and cyclic swing piece is rotatably connected with rotating disc (14).

2. The degradable box bottom bag forming apparatus according to claim 1, wherein, Lifting base plate (24) is parallelly distributed with cutting film bottom disc (11) and cutting film top disc (12), and the middle part of lifting rod (26) is sleeved with rod seat (25).

3. A degradable box bottom bag forming apparatus according to claim 2, wherein The cutting knife (27), the knife groove (28) vertical section is provided with isosceles triangle structure.

4. The degradable box bottom bag forming apparatus according to claim 3, wherein, The cyclic swing piece includes the output shaft (16) connected at the output end of servo motor (10), the output shaft (16) end is installed with the rotating disc (14) of circular structure, the side surface of rotating disc (14) is provided with the lifting track (15) of arc structure, lifting track (15) is provided with the sliding rod (17) along the inside sliding of lifting track (15), the one end of sliding rod (17) is connected with swing rod one (18), the other end of swing rod one (18) is installed with sleeve (20), the sleeve (20) is connected with swing rod two (19) in staggered mode on one side relative to swing rod one (18), swing rod two (19) end is rotatably connected with swing connecting rod (29) top through swing connecting shaft (23), the middle part of sleeve (20) is rotatably provided with rotating shaft (21), rotating shaft (21) both ends are supported and positioned through support sleeve rod, rotating disc (14) bottom is connected with the support rod for supporting its stability, and the output shaft (16) is also supported and positioned through support sleeve rod.

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