Film sealing device for large-specification film bag

Abstract

The utility model relates to the field of dust-free film bag processing, in particular to a large-specification film bag film sealing device which comprises a processing table, an electric heating wire and a supporting frame, the supporting frame and the electric heating wire are both installed on the processing table, the large-specification film bag film sealing device further comprises a pressing die rod, and a control unit for controlling the pressing die rod to vertically move up and down is arranged between the pressing die rod and the supporting frame. The die pressing rod is vertically opposite to the electric heating wire; and the pressing sponge is detachably mounted on the pressing mold rod, and the pressing sponge covers the lower side of the pressing mold rod. According to the scheme, the pressing sponge is pressed to the to-be-sealed position of the film bag in an attached mode, the flexible pressing sponge deforms to enable the to-be-sealed position of the film bag to be attached to the electric heating wire, and the complete sealing rate of the to-be-sealed position of the film bag is increased; and when the human hand is in contact with the pressing sponge, the pressing sponge can protect the human hand, and the human hand is prevented from being directly pressed between the mold pressing rod and the machining table.

Description

Technical Field

[0001] The utility model relates to the technical field of dust-free film bag processing, in particular to a large-size film bag sealing device. Background Art

[0002] Dust-free film bags are generally used in the packaging of precision instruments, medicines, food and other products in solar energy. This requires that the film bags also need to be produced in a dust-free environment. The processing requirements of dust-free film bags are also higher than those of ordinary film bags.

[0003] The processing of dust-free film bags involves the sealing of dust-free film bags. Small-sized film bags can generally be automatically sealed and cut on the production line; however, when large-sized film bags are processed, the length and width of the film bags are sealed, and the sealing length and range are relatively large. The large-sized automatic cutting equipment is expensive and has a small application range; therefore, small-sized film sealing structures are generally used for film sealing. Hard contact is generally adopted between the heating wire and the film pressing structure, which leads to the formation of gaps between the double-layer films when the film bag is partially sealed, resulting in incomplete sealing; at the same time, the manual film sealing operation and the pressing between the heating wire and the film pressing structure are not easy to synchronize, which will reduce the sealing efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a large-sized film bag sealing device to solve the problem that hard contact is generally adopted between the heating wire and the film pressing structure, which leads to the formation of gaps between the double-layer films when the film bag is partially sealed, resulting in incomplete sealing.

[0005] In order to achieve the above-mentioned purpose, the basic scheme of the utility model is as follows: a large-size film bag sealing device, including a processing table, a heating wire and a support frame, the support frame and the heating wire are both installed on the processing table, and also includes:

[0006] A die pressing rod, a control unit for controlling the vertical up and down movement of the die pressing rod is arranged between the die pressing rod and the support frame, and the die pressing rod is vertically opposite to the electric heating wire;

[0007] A pressing sponge is detachably mounted on the die pressing rod, and the pressing sponge covers the lower side of the die pressing rod.

[0008] The technical principle of the utility model is: when the large-size film bag sealing device is in use, the electric heating wire is turned on, and the pressing sponge is installed on the die rod, and then the sealing part of the large-size film bag is overlapped, and the sealing part is stretched and pressed against the electric heating wire. While pressing, the control unit controls the die rod to move vertically downward, and the pressing sponge is pressed against the sealing part of the film bag. The flexible pressing sponge is deformed so that the sealing part of the film bag is pressed against the electric heating wire, thereby improving the complete sealing rate of the sealing part of the film bag. When a human hand touches the pressing sponge, the pressing sponge can also protect the human hand to prevent the human hand from directly pressing between the die rod and the processing table.

[0009] Furthermore, the pressing sponge is in a strip shape, and the two ends of the pressing sponge are turned around the upper surface of the die rod, and the two ends of the pressing sponge are detachably connected to the upper surface of the die rod.

[0010] Through the above arrangement, the pressing sponge can be disassembled and replaced from the upper surfaces of both ends of the pressing mold rod, and the pressing sponge can be disassembled and replaced conveniently.

[0011] Furthermore, grooves are provided on the upper surfaces of both ends of the die rod for inserting the ends of the pressing sponge, and pressing plates are provided at the grooves of the die rod for pressing the ends of the pressing sponge, and torsion springs are horizontally provided between the pressing plates and the die rod for flipping the pressing plates.

[0012] Through the above-mentioned arrangement, the embedded groove can limit the pressing sponge, and the pressing sheet can press the pressing sponge at the same time; when installing the end of the pressing sponge, the end of the pressing sheet is pressed, and the lower surface of the pressing sheet is separated from the upper surface of the die rod, and then the pressing sponge is embedded in the embedded groove, and the pressing sheet is loosened. The pressing sheet rebounds and is pressed onto the die rod under the action of the torsion spring, thereby achieving tension and fixation of the pressing sponge, and the pressing of the pressing sponge is convenient.

[0013] Furthermore, an installation groove for installing the heating wire is provided on the upper surface of the processing table, a convex strip is horizontally installed in the installation groove of the processing table, and the heating wire is fixedly installed at the top of the convex strip.

[0014] Through the above arrangement, the convex strip can position the portion of the film bag to be sealed, so that the portion of the film bag to be sealed can accurately contact the electric heating wire.

[0015] Furthermore, the surface of the convex strip is an arc surface, and the top surface of the convex strip is higher than the upper surface of the processing table.

[0016] Through the above arrangement, the flexible pressing sponge is deformed so that the portion of the film bag to be sealed fits onto the arc surface of the convex strip, thereby improving the probability of a comprehensive sealing of the portion of the film bag to be sealed.

[0017] Furthermore, the control unit includes a pneumatic telescopic rod, a pneumatic cylinder for controlling the extension or shortening of the pneumatic telescopic rod, and a pedal switch for controlling the pneumatic cylinder. The pneumatic cylinder and the pneumatic telescopic rod are vertically arranged between the support frame and the die rod. The pneumatic cylinder is fixedly mounted on the support frame, and the lower end of the pneumatic telescopic rod is fixedly connected to the upper surface of the die rod.

[0018] Through the above arrangement, the part to be sealed is stretched and fitted to the electric heating wire. While fitting, the pedal switch is then stepped on. The pedal switch controls the extension of the pneumatic telescopic rod through the pneumatic cylinder. The pneumatic telescopic rod pushes the die pressing rod and the pressing sponge downward. The pressing sponge is fitted and pressed to the part to be sealed of the film bag, so that the fitting of the part to be sealed and the extension of the pneumatic telescopic rod are synchronized, thereby improving the sealing efficiency.

[0019] Furthermore, the number of the pneumatic cylinders and the pneumatic telescopic rods is greater than or equal to two, and the plurality of pneumatic cylinders are evenly arranged along the axis of the die rod.

[0020] Through the above arrangement, the pneumatic cylinder and the pneumatic telescopic rod can stably support the die pressing rod, so that the downward movement of the die pressing rod is stable and the film bag is also stable when pressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the axonometric direction of a large-sized film bag sealing device in an embodiment of the utility model.

[0022] In the above drawings: processing table 10, mounting groove 101, convex strip 102, heating wire 20, support frame 30, die rod 40, embedding groove 401, pressing sheet 402, pressing sponge 50, pneumatic telescopic rod 601, pneumatic cylinder 602, pedal switch 603. DETAILED DESCRIPTION

[0023] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] This embodiment is basically Figure 1 As shown, an embodiment of the utility model proposes a large-size film bag sealing device, including a processing table 10, a heating wire 20, a support frame 30, a die rod 40 and a pressing sponge 50. A mounting groove 101 for mounting the heating wire 20 is provided on the upper surface of the processing table 10, and a convex strip 102 is horizontally installed in the mounting groove 101 of the processing table 10, and the surface of the convex strip 102 is an arc surface; the heating wire 20 is embedded and bonded at the top of the convex strip 102, and the top surface of the convex strip 102 is higher than the upper surface of the processing table 10.

[0025] like Figure 1 As shown, the support frame 30 is in an inverted "U" shape, and both ends of the support frame 30 are welded to the processing table 10. A control unit for controlling the vertical up and down movement of the die rod 40 is provided between the die rod 40 and the support frame 30, and the die rod 40 is vertically opposite to the heating wire 20.

[0026] like Figure 1 As shown, the pressing sponge 50 is in the shape of a strip and can be detachably mounted on the die rod 40, and the pressing sponge 50 covers the lower side of the die rod 40; the two ends of the pressing sponge 50 are turned around the upper surface of the die rod 40; the upper surfaces of the two ends of the die rod 40 are provided with embedding grooves 401 for the ends of the pressing sponge 50 to be embedded, and the embedding grooves 401 of the die rod 40 are provided with a pressing sheet 402 that can press the ends of the pressing sponge 50, and a torsion spring is horizontally arranged between the pressing sheet 402 and the die rod 40 for flipping the pressing sheet 402.

[0027] like Figure 1 As shown, the control unit includes a pneumatic telescopic rod 601, a pneumatic cylinder 602 for controlling the extension or shortening of the pneumatic telescopic rod 601, and a pedal switch 603 for controlling the pneumatic cylinder 602. The number of the pneumatic cylinders 602 and the pneumatic telescopic rod 601 is three, and the three pneumatic cylinders 602 are evenly arranged along the axis of the die rod 40; the pneumatic cylinder 602 and the pneumatic telescopic rod 601 are vertically arranged between the support frame 30 and the die rod 40, the pneumatic cylinder 602 is fixedly mounted on the support frame 30 by screws, and the lower end of the pneumatic telescopic rod 601 is fixedly connected to the upper surface of the die rod 40 by screws.

[0028] When a large-size film bag sealing device in the present embodiment is in use, the electric heating wire 20 is turned on, and the two ends of the pressing sponge 50 are installed on the die rod 40. At this time, the end of the pressing sheet 402 is pressed, and the lower surface of the pressing sheet 402 is separated from the upper surface of the die rod 40. Then the pressing sponge 50 is embedded in the embedding groove 401, and the pressing sheet 402 is loosened. The pressing sheet 402 rebounds and is pressed onto the die rod 40 under the action of the torsion spring, thereby achieving tension and fixation of the pressing sponge 50. At this time, the pressing sponge 50 can fit onto the lower surface of the die rod 40.

[0029] Then, the sealing parts of the large-sized film bags are overlapped, and the sealing parts are stretched and pressed against the heating wire 20. At the same time, the pedal switch 603 is then stepped on. The pedal switch 603 controls the extension of the pneumatic telescopic rod 601 through the pneumatic cylinder 602. The pneumatic telescopic rod 601 pushes the die rod 40 and the pressing sponge 50 downward, and the pressing sponge 50 is pressed against the sealing part of the film bag. The flexible pressing sponge 50 is deformed so that the sealing part of the film bag is pressed against the arc surface of the convex strip 102, and the sealing part of the film bag is stably pressed against the heating wire 20, thereby improving the complete sealing rate of the sealing part of the film bag. When a human hand touches the pressing sponge 50, the pressing sponge 50 can also protect the human hand to prevent the human hand from directly pressing between the die rod 40 and the processing table 10.

[0030] After 3-5 seconds of hot-melt sealing, the pedal switch 603 is released, and the pneumatic cylinder 602 controls the pneumatic telescopic rod 601 to move back, and the pneumatic telescopic rod 601 drives the die pressing rod 40 to move upward, so that the sealed film bag can be loosened and taken out, and the entire sealing operation is simple and convenient.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A large-size film bag sealing device, comprising a processing table, a heating wire and a support frame, wherein the support frame and the heating wire are both mounted on the processing table, characterized in that: Also includes: A die rod, wherein a control unit for controlling the vertical up and down movement of the die rod is disposed between the die rod and the support frame, and the die rod is vertically opposite to the heating wire; A pressing sponge is detachably mounted on the die rod, and the pressing sponge covers the lower side of the die rod.

2. A large-size film bag sealing device as claimed in claim 1, characterized in that: The pressing sponge is in strip shape, and two ends of the pressing sponge are turned around the upper surface of the die pressing rod, and the two ends of the pressing sponge are detachably connected to the upper surface of the die pressing rod.

3. A large-size film bag sealing device as claimed in claim 2, characterized in that: The upper surfaces of both ends of the die rod are provided with embedding grooves for embedding the ends of the pressing sponge, the embedding grooves of the die rod are provided with pressing sheets for pressing the ends of the pressing sponge, and a torsion spring for flipping the pressing sheet is horizontally arranged between the pressing sheet and the die rod.

4. A large-size film bag sealing device as claimed in claim 1, characterized in that: An installation groove for installing the heating wire is provided on the upper surface of the processing table, a convex strip is horizontally installed in the installation groove of the processing table, and the heating wire is fixedly installed at the top of the convex strip.

5. A large-size film bag sealing device as claimed in claim 4, characterized in that: The surface of the convex strip is an arc surface, and the top surface of the convex strip is higher than the upper surface of the processing table.

6. A large-size film bag sealing device as claimed in claim 1, characterized in that: The control unit includes a pneumatic telescopic rod, a pneumatic cylinder for controlling the extension or shortening of the pneumatic telescopic rod, and a pedal switch for controlling the pneumatic cylinder. The pneumatic cylinder and the pneumatic telescopic rod are vertically arranged between the support frame and the die rod. The pneumatic cylinder is fixedly mounted on the support frame, and the lower end of the pneumatic telescopic rod is fixedly connected to the upper surface of the die rod.

7. A large-size film bag sealing device as claimed in claim 6, characterized in that: The number of the pneumatic cylinders and the pneumatic telescopic rods is greater than or equal to two, and the pneumatic cylinders are evenly arranged along the axis of the die pressing rod.

Images