Hot-pressing sealing device for degrading express bag film

Abstract

The utility model relates to the field of production of degradable express bags, in particular to a hot-press sealing device for degradable express bag films, which comprises a bottom plate and a hot-press box, fixing frames are mounted on the upper end face of the bottom plate in bilateral symmetry, the hot-press box is mounted at the inner side ends of the fixing frames, hot-press cutters are arranged below the hot-press box, and n-shaped frames are mounted on the left end faces in the fixing frames. Electric sliding blocks are symmetrically installed on the inner side end of the [-shaped frame front and back, [-shaped cavities are formed in the inner side ends of the electric sliding blocks, a plurality of ventilation holes are formed in the inner side ends of the [-shaped cavities, connecting pipes are installed on the right side end faces of the [-shaped cavities, adjusting fans are installed at the other ends of the connecting pipes, and scrapers are arranged at the bottoms in the [-shaped cavities. The [-shaped cavity can cool the surface of the hot-pressing cutter, the service life of the hot-pressing cutter is prolonged, and the scraper can scrape waste on the surface of the hot-pressing cutter, so that the hot-pressing sealing effect of the hot-pressing cutter is ensured.

Description

Technical Field

[0001] The utility model relates to the field of degradable express bag production, in particular to a hot-pressing sealing device for degradable express bag films. Background Art

[0002] Degradable courier bags are made of plastic film, non-toxic polyolefin resin, added with degradants, starch, modified starch or other cellulose, photosensitizer, biodegradation agent and other raw materials. Degradable plastic bags can be self-decomposed after 90 days under certain conditions.

[0003] A Chinese patent discloses a hot-press sealing device for biodegradable plastic bags (authorization announcement number CN 215945077U). This patented technology can solve the problem of stopping the machine and manually scraping off the plastic bag waste on the hot-pressing knife with a scraper when there is too much plastic bag waste stuck on the surface of the hot-pressing knife. This method has defects. Not only is the manual operation efficiency too low, but the surface temperature of the hot-pressing knife is also very high. Once a worker accidentally touches the surface of the hot-pressing knife, it will cause arm burns.

[0004] However, the existing scraper needs to wait for the temperature of the hot pressing knife to drop when removing waste. Otherwise, the plastic will be too sticky and difficult to clean when the temperature is too high. There is a lack of cooling structure, and there is a lack of limiting structure when heat-sealing the express bag film, which makes it easy to move, resulting in poor heat sealing effect. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a hot pressing sealing device for degradable express bag film, including a base plate and a hot pressing box, a fixing frame is symmetrically installed on the upper surface of the base plate, a hot pressing box is installed on the inner end of the fixing frame, a hot pressing knife is arranged under the hot pressing box, a molding frame is installed on the left end surface of the fixing frame, an electric slider is symmetrically installed on the inner end of the molding frame, a molding cavity is installed on the inner end of the electric slider, a plurality of ventilation holes are opened on the inner end of the molding cavity, a connecting pipe is installed on the right end surface of the molding cavity, an adjusting fan is installed on the other end of the connecting pipe, a scraper is arranged at the bottom of the molding cavity, and the scraper can remove material from the surface of the hot pressing knife.

[0006] Preferably: the connecting tube is a spring tube structure, a fixed tube is installed on the right end face of the connecting tube, and a regulating fan is installed on the upper end face of the fixed tube. The spring tube structure is convenient for driving the mold cavity to move.

[0007] Preferably: an adjusting cylinder is installed on the upper end surface of the hot press box, and a hot press knife is installed on the output end of the adjusting cylinder.

[0008] Preferably: a control panel is installed on the left end surface of the fixing frame, the control panel is electrically connected to the regulating fan, and a PLC program is written in the control panel to control the operation of each device.

[0009] Preferably, a placement groove is formed at the inner end of the fixing frame, a spring rod is installed at the bottom of the placement groove, a first slider is installed on the upper end surface of the spring rod, and a pressing plate is installed at the inner end of the first slider.

[0010] Preferably, a fixing groove is formed at the bottom of the C-shaped cavity, an adjusting lead screw is installed on the front side end surface of the fixing groove, a handle is installed on the rear side end surface of the adjusting lead screw, adjusting sliders are symmetrically screwed on the front and rear outer side walls of the adjusting lead screw, and an L-shaped plate is installed on the upper end surface of the adjusting slider.

[0011] The technical effects and advantages of the present utility model are as follows:

[0012] 1. In the present utility model, a C-shaped cavity and a scraper structure are adopted. The C-shaped cavity can cool the surface of the hot pressing knife, extend the service life of the hot pressing knife, and the scraper can scrape the waste on the surface of the hot pressing knife, thereby ensuring the hot pressing and sealing effect of the hot pressing knife.

[0013] 2. In the present utility model, a spring rod and a pressing plate structure are adopted. The spring rod drives the pressing plate to move downward to limit the express delivery bag film, avoiding the deviation of the express delivery bag film during the heat sealing process and resulting in a poor heat sealing effect. Description of the Drawings

[0014] Figure 1 is the front view of the structure of a hot pressing and sealing device for a degradable express delivery bag film provided by an embodiment of the present application;

[0015] Figure 2 is the sectional front view of a hot pressing and sealing device for a degradable express delivery bag film provided by an embodiment of the present application;

[0016] Figure 3 is the sectional top view of a hot pressing and sealing device for a degradable express delivery bag film provided by an embodiment of the present application;

[0017] Figure 4 is the sectional right view of a hot pressing and sealing device for a degradable express delivery bag film provided by an embodiment of the present application;

[0018] Figure 5 is a hot pressing and sealing device for a degradable express delivery bag film provided by an embodiment of the present application Figure 4 magnified view of area A in;

[0019] In the figure: 1, bottom plate; 2, hot pressing box; 11, fixing frame; 12, C-shaped frame; 13, hot pressing knife; 14, electric slider; 15, C-shaped cavity; 16, ventilation hole; 17, connecting pipe; 18, adjusting fan; 19, scraper; 21, adjusting cylinder; 22, control panel; 23, spring rod; 24, pressing plate; 25, adjusting lead screw; 26, L-shaped plate. Detailed Embodiment

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The invention of the present invention is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The invention is selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various inventions with various modifications suitable for specific purposes.

[0021] See also Figures 1 to 5 In this embodiment, a hot pressing sealing device for degradable express bag film is provided, including a bottom plate 1 and a hot pressing box 2, a fixing frame 11 is symmetrically installed on the upper end surface of the bottom plate 1, a hot pressing box 2 is installed on the inner end of the fixing frame 11, a hot pressing knife 13 is arranged below the hot pressing box 2, a mold frame 12 is installed on the left end surface of the fixing frame 11, an electric slider 14 is symmetrically installed on the inner end of the mold frame 12, a mold cavity 15 is installed on the inner end of the electric slider 14, a plurality of ventilation holes 16 are opened on the inner end of the mold cavity 15, a connecting pipe 17 is installed on the right end surface of the mold cavity 15, an adjusting fan 18 is installed on the other end of the connecting pipe 17, and a scraper 1 is arranged at the bottom of the mold cavity 15 9. When working, the electric slider 14 is a linear guide slider structure. The motor drives the lead screw to rotate so as to control the linear movement of the device. The hot pressing knife 13 performs hot pressing and sealing treatment on the express bag film. However, the surface of the hot pressing knife 13 is too hot after long-term use, which reduces its service life. The fan 18 is adjusted to start, and cold air enters the mold cavity 15 through the connecting pipe 17, and then is discharged through the ventilation hole 16, so that the hot pressing knife 13 is cooled. However, after long-term use, the surface of the hot pressing knife 13 is easily attached with waste materials, resulting in poor use effect. The electric slider 14 is started, driving the mold cavity 15 to move left and right, so that the scraper 19 moves, so as to facilitate the scraping of the cooled waste materials.

[0022] The connecting tube 17 is a spring tube structure, a fixed tube is installed on the right end face of the connecting tube 17, an adjusting fan 18 is installed on the upper end face of the fixed tube, a control panel 22 is installed on the left end face of the fixed frame 11, and the control panel 22 is electrically connected to the adjusting fan 18. When working, the electric slider 14 is started, thereby driving the mold cavity 15 to move right, so that the normal operation of the hot pressing knife 13 is not affected. A PLC control program is written in the control panel 22 to control the operation of each device. The spring tube structure is adopted to facilitate the movement of the mold cavity 15.

[0023] The upper end surface of the hot press box 2 is installed with an adjusting cylinder 21, and the output end of the adjusting cylinder 21 is installed with a hot pressing knife 13. When working, the express bag film is placed on the bottom plate 1, and the adjusting cylinder 21 is started to drive the hot pressing knife 13 to move downward, thereby performing hot pressing and sealing treatment on the express bag film.

[0024] An accommodation groove is formed at the inner side end of the fixing frame 11, a spring rod 23 is installed at the bottom of the accommodation groove, a first slider is installed on the upper end face of the spring rod 23, and a pressing plate 24 is installed at the inner side end of the first slider. During operation, after the express bag film is placed on the bottom plate 1, the spring rod 23 drives the pressing plate 24 to move downward to limit the express bag film, preventing the position of the express bag film from shifting during the heat sealing process and resulting in poor heat sealing effect.

[0025] A fixing groove is formed at the bottom of the U-shaped cavity 15, an adjusting lead screw 25 is installed on the front side end face of the fixing groove, a handle is installed on the rear side end face of the adjusting lead screw 25, and adjusting sliders are symmetrically screwed on the outer side wall of the adjusting lead screw 25 in the front and rear directions. An L-shaped plate 26 is installed on the upper end face of the adjusting slider. During operation, the thread directions of the adjusting lead screw 25 are symmetrically opposite in the front and rear directions, and the L-shaped plate 26 seals the ventilation holes 16, preventing waste materials from entering the U-shaped cavity 15 through the ventilation holes 16 during the operation of the scraper 19, which is difficult to clean. When the adjusting fan 18 operates, the handle is rotated to drive the adjusting lead screw 25 to rotate, causing the L-shaped plate 26 to move outward and the ventilation holes 16 to open, allowing cold air to blow out through the ventilation holes 16.

[0026] During specific operation, the electric slider 14 is started to drive the U-shaped cavity 15 to move to the right, and the express bag film is placed on the bottom plate 1. The spring rod 23 drives the pressing plate 24 to move downward to limit the express bag film, preventing the position of the express bag film from shifting during the heat sealing process and resulting in poor heat sealing effect. The adjusting cylinder 21 is started to drive the hot pressing knife 13 to move downward to perform heat pressing and sealing on the express bag film. However, after the hot pressing knife 13 is used for a long time, the surface becomes too hot, reducing its service life. The adjusting fan 18 is started, and cold air enters the U-shaped cavity 15 through the connecting pipe 17 and then is discharged through the ventilation holes 16 to cool the hot pressing knife 13. After being used for a long time, waste materials are likely to adhere to the surface of the hot pressing knife 13, resulting in poor use effect. The electric slider 14 is started to drive the U-shaped cavity 15 to move left and right, causing the scraper 19 to move, facilitating the scraping of the cooled waste materials. The L-shaped plate 26 seals the ventilation holes 16, preventing waste materials from entering the U-shaped cavity 15 through the ventilation holes 16 during the operation of the scraper 19, which is difficult to clean. When the adjusting fan 18 operates, the handle is rotated to drive the adjusting lead screw 25 to rotate, causing the L-shaped plate 26 to move outward and the ventilation holes 16 to open, allowing cold air to blow out through the ventilation holes 16.

[0027] Obviously, the described invention is only a part of the invention of the present utility model, rather than all of the inventions. Based on the inventions in the present utility model, all other inventions obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the scope of protection of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model shall be implemented according to the conventional means in the art without special instructions and limitations.

Claims

1. A hot-pressing sealing device for degradable express bag film, comprising a bottom plate (1) and a hot-pressing box (2), characterized in that: On the upper end surface of the bottom plate (1), fixing frames (11) are symmetrically installed on the left and right. The inner ends of the fixing frames (11) are provided with hot pressing boxes (2). A hot pressing knife (13) is arranged below the hot pressing box (2). On the left inner end face of the fixing frame (11), an L-shaped frame (12) is installed. Electric sliders (14) are symmetrically installed on the front and back of the inner end of the L-shaped frame (12). The inner ends of the electric sliders (14) are provided with an L-shaped cavity (15). A plurality of ventilation holes (16) are opened at the inner end of the L-shaped cavity (15). A connecting pipe (17) is installed on the right end face of the L-shaped cavity (15). The other end of the connecting pipe (17) is installed with an adjusting fan (18). A scraping knife (19) is arranged at the bottom of the L-shaped cavity (15).

2. A hot-pressing sealing device for degradable express bag film according to claim 1, characterized in that , The connecting pipe (17) is of a bellows structure. A fixed pipe is installed on the right end face of the connecting pipe (17). The adjusting fan (18) is installed on the upper end face of the fixed pipe.

3. A hot-pressing sealing device for degradable express bag film according to claim 1, characterized in that: An adjusting cylinder (21) is installed on the upper end face of the hot pressing box (2). The output end of the adjusting cylinder (21) is installed with a hot pressing knife (13).

4. A hot-pressing sealing device for degradable express bag film according to claim 1, characterized in that: A control panel (22) is installed on the left end face of the fixing frame (11). The control panel (22) is electrically connected to the adjusting fan (18).

5. A hot-pressing sealing device for degradable express bag film according to claim 2, characterized in that: A placement groove is opened at the inner end of the fixing frame (11). A spring rod (23) is installed at the bottom of the placement groove. A first slider is installed on the upper end face of the spring rod (23). A pressing plate (24) is installed at the inner end of the first slider.

6. A hot-pressing sealing device for degradable express bag film according to claim 5, characterized in that: A fixing groove is opened at the bottom of the L-shaped cavity (15). An adjusting lead screw (25) is installed on the front side end face of the fixing groove. A handle is installed on the rear side end face of the adjusting lead screw (25). Adjusting sliders are symmetrically screwed on the outer wall of the adjusting lead screw (25) in the front and back. An L-shaped plate (26) is installed on the upper end face of the adjusting slider.

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