Transverse sealing device of bag making machine

Abstract

The utility model discloses a transverse sealing device of a bag making machine, which belongs to the technical field of plastic bag production equipment and comprises a bottom plate, a sliding groove, a fixing block and a bag winding drum are arranged at the top of the bottom plate through a fixing plate, a sliding rail threaded rod and a lifting plate are further arranged on the bottom plate through a first mounting frame, and a heat sealing strip is arranged at the bottom of the lifting plate through a heating box. A plurality of through holes are evenly formed in the lifting plate, sliding rods are slidably arranged in the through holes, and pressing plates are arranged at the tail ends of the bottoms of the sliding rods. Under the action of the fixing block, the bag winding drum can be conveniently installed, meanwhile, rapid replacement of the bag winding drum is achieved, shutdown operation is not needed, the replacement time is greatly shortened, the production efficiency is improved, under the action of the pressing plate and the pressing spring, a plastic bag can be stably pressed and fixed in the transverse sealing process, and the production efficiency is improved. And displacement or wrinkling of the plastic bag is effectively prevented, so that the flatness and the sealing performance of the transverse seal are guaranteed, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bag production equipment, in particular to a transverse sealing device of a bag making machine. Background Art

[0002] In the packaging industry, bag making machines are key equipment for producing various types of plastic bags. Their performance directly impacts production efficiency, product quality, and cost control. The transverse seal is a crucial step in the bag-making process, determining the bag's sealability and integrity.

[0003] In the existing technology, most transverse sealing devices often have problems such as complex operation, low efficiency, and unstable transverse sealing quality, which makes it difficult to meet the modern packaging industry's demand for efficient and high-quality production. At the same time, most transverse sealing devices usually need to be shut down when replacing bag rolls, which not only wastes time but also reduces production efficiency. In addition, due to the lack of effective fixing and pressing mechanisms, plastic bags are easily displaced or wrinkled during the transverse sealing process, resulting in a decrease in transverse sealing quality. Traditional transverse sealing devices usually require manual cutting operations after transverse sealing, further increasing labor intensity and production costs. Utility Model Content

[0004] The purpose of the present utility model is to provide a transverse sealing device for a bag making machine to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A transverse sealing device of a bag making machine includes a base plate, a fixed plate is provided on the left side of the top of the base plate, a slide groove is provided on the fixed plate, a fixed block is slidably provided in the slide groove, and a bag roll is provided on the fixed block through a rotating shaft, a first mounting frame is also provided on the top of the base plate on the right side of the fixed plate, a slide rail is provided on the first mounting frame, a lifting plate is slidably provided on the slide rail, a threaded rod is also rotatably provided on the first mounting frame, the threaded rod passes through the lifting plate and is threadedly connected to the lifting plate, a heating box is also provided at the bottom of the lifting plate, a heat sealing strip is provided at the bottom of the heating box, a number of through holes are evenly provided on the lifting plate, sliding rods are slidably provided in the through holes, and a pressing plate is provided at the bottom end of the sliding rod.

[0007] As a further solution of the present invention: a second mounting bracket is provided on the top of the base plate to the right of the first mounting bracket, and a number of electric push rods are evenly arranged on the second mounting bracket. A mounting plate is provided at the end of the telescopic arm at the bottom of the electric push rod, and a cutter is also provided at the bottom of the mounting plate.

[0008] As a further solution of the present invention: a motor is further provided on the first mounting bracket, and a power output shaft of the motor is connected to the threaded rod through a coupling.

[0009] As a further solution of the present invention: a compression spring is sleeved on the outer side of the slide rod.

[0010] As a further solution of the present invention: one end of the pressing spring is connected to the pressing plate, and the other end of the pressing spring is connected to the lifting plate.

[0011] As a further solution of the present invention: a limiting block is further provided on the slide rod at the top of the lifting plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. Under the action of the fixing block, it is not only convenient to install the bag roll, but also realize the rapid replacement of the bag roll without stopping the machine, which greatly shortens the replacement time and improves production efficiency. At the same time, the motor drives the threaded rod to drive the lifting plate to automatically adjust the height, so that the heat sealing strip can be accurately positioned and press the plastic bag to seal it horizontally, further improving the convenience and flexibility of operation;

[0014] 2. Under the action of the pressing plate and the pressing spring, the plastic bag can be stably pressed and fixed during the transverse sealing process, effectively preventing the plastic bag from shifting or wrinkling, thereby ensuring the flatness and sealing of the transverse seal and improving product quality. In addition, through the cooperation of the electric push rod and the cutter, the automatic cutting function after transverse sealing is realized, reducing manual intervention and improving the degree of automation of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.

[0016] Figure 2 It is a structural schematic diagram of the right side view of an embodiment of the present utility model.

[0017] Figure 3 It is a structural schematic diagram of the fixing plate in an embodiment of the present utility model.

[0018] Figure 4 It is a structural diagram of the lifting plate in an embodiment of the present utility model.

[0019] Notes on the accompanying drawings: 1. Base plate; 2. Fixed plate; 3. Fixed block; 4. Bag roll; 5. First mounting bracket; 6. Slide rail; 7. Threaded rod; 701. Motor; 8. Lifting plate; 9. Slide rod; 901. Limit block; 10. Pressing spring; 11. Pressing plate; 12. Heating box; 13. Heat sealing strip; 14. Second mounting bracket; 15. Electric push rod; 16. Mounting plate; 17. Cutter. DETAILED DESCRIPTION

[0020] The following embodiments will be described in detail with reference to the accompanying drawings. Similar or identical parts are denoted by the same reference numerals in the drawings and descriptions. In actual applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in the present invention are intended only to illustrate the present invention and are not intended to limit its scope. Any obvious modifications or changes to the present invention do not depart from the spirit and scope of the present invention.

[0021] Example

[0022] See also Figures 1 to 4 In an embodiment of the present invention, a transverse sealing device of a bag making machine includes a bottom plate 1, a fixed plate 2 is provided on the top left side of the bottom plate 1, a slide groove is provided on the fixed plate 2, a fixed block 3 is slidingly provided in the slide groove, and a bag roll 4 is provided on the fixed block 3 through a rotating shaft. At this time, under the action of the fixed block 3, it is convenient to replace the bag roll 4, thereby ensuring the subsequent transverse sealing work of the plastic bag. In addition, the bag roll 4 that can be easily replaced can also ensure the use efficiency of the transverse sealing device.

[0023] The top of the bottom plate 1 is located on the right side of the fixed plate 2 and is further provided with a first mounting frame 5, a slide rail 6 is provided on the first mounting frame 5, and a lifting plate 8 is slidably provided on the slide rail 6. The first mounting frame 5 is also rotatably provided with a threaded rod 7, which passes through the lifting plate 8 and is threadedly connected to the lifting plate 8. At this time, rotating the threaded rod 7 can drive the lifting plate 8 to drive the first mounting frame 5 to move, thereby adjusting the height of the lifting plate 8. A heating box 12 is also provided at the bottom of the lifting plate 8, and a heat sealing strip 13 is provided at the bottom of the heating box 12. When the plastic bag needs to be heat-sealed During operation, the staff pulls the part of the plastic bag that needs to be horizontally sealed to the bottom of the heat sealing strip 13. At this time, the threaded rod 7 is used to drive the lifting plate 8 to move downward, so that the heat sealing strip 13 contacts the plastic bag, thereby performing horizontal sealing on the plastic bag. To a certain extent, the quality of the device for horizontal sealing of the plastic bag is guaranteed. A motor 701 is also provided on the first mounting frame 5. The power output shaft of the motor 701 is connected to the threaded rod 7 through a coupling. At this time, the motor 701 can be used to drive the threaded rod 7 to rotate, and then the plastic bag is horizontally sealed through the heat sealing strip 13.

[0024] A second mounting frame 14 is also provided on the top of the base plate 1 to the right of the first mounting frame 5. A number of electric push rods 15 are evenly provided on the second mounting frame 14. A mounting plate 16 is provided at the end of the telescopic arm at the bottom of the electric push rod 15. A cutter 17 is also provided at the bottom of the mounting plate 16. In actual use, when the device completes the horizontal sealing work of the plastic bag, the electric push rod 15 is used to drive the cutter 17 to move downward, so that the cutter 17 cuts the plastic bag, thereby ensuring the subsequent collection efficiency of the plastic bag.

[0025] The lifting plate 8 is also evenly provided with a number of through holes, in which a slide rod 9 is slidably provided, and a pressing plate 11 is provided at the bottom end of the slide rod 9. Under the action of the pressing plate 11, the rubber of the plastic bag that needs to be horizontally sealed can be pressed and fixed, thereby ensuring the horizontal sealing quality of the plastic bag. A pressing spring 10 is also sleeved on the outside of the slide rod 9, one end of the pressing spring 10 is connected to the pressing plate 11, and the other end of the pressing spring 10 is connected to the lifting plate 8. At this time, under the action of the pressing spring 10, the pressing and fixing quality of the plastic bag by the pressing plate 11 is guaranteed. A limiting block 901 is also provided on the slide rod 9 at the top of the lifting plate 8. Under the action of the limiting block 901, the slide rod 9 can be restricted, thereby ensuring the use efficiency of the slide rod 9, thereby ensuring the pressing and fixing quality of the plastic bag by the pressing plate 11.

[0026] In actual use, according to production needs, the bag roll 4 containing the plastic bag roll is slidably installed in the slide groove of the fixed plate 2 through the fixed block 3. This design facilitates the rapid replacement of bag rolls 4 of different specifications or used bags, thereby improving production efficiency and flexibility. Next, the motor 701 is started, and its power output shaft drives the threaded rod 7 to rotate through the coupling. Since the threaded rod 7 is threadedly connected to the lifting plate 8, the rotating threaded rod 7 will drive the lifting plate 8 to move vertically on the slide rail 6. The operator can adjust the height of the lifting plate 8 according to the thickness and position of the plastic bag to be horizontally sealed, so as to ensure that the heat sealing strip 13 can accurately contact and press the plastic bag. When the lifting plate 8 is adjusted to the appropriate position, the heat sealing strip 13 in the heating box 12 is activated and heated. After the bag is heated to a predetermined temperature, the staff will pull the part of the plastic bag that needs to be horizontally sealed under the heat-sealing strip 13 and start the motor 701 to continue to drive the lifting plate 8 to descend until the heat-sealing strip 13 is in close contact with the plastic bag. Under the high temperature of the heat-sealing strip 13, the plastic bag quickly melts and bonds, completing the horizontal sealing work. During this process, the pressing plate 11 slides in the through hole through the slide rod 9 under the action of the pressing spring 10, and stably presses and fixes the plastic bag, ensuring the accuracy and quality of the horizontal sealing. After the horizontal sealing is completed, the electric push rod 15 is started, and its telescopic arm drives the mounting plate 16 and the cutter 17 at the bottom to descend rapidly. The cutter 17 accurately cuts the horizontally sealed plastic bag, realizes automatic cutting, and provides convenience for subsequent collection work.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0028] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A transverse sealing device for a bag making machine, comprising a bottom plate (1), characterized in that: A fixed plate (2) is provided on the left side of the top of the bottom plate (1), a slide groove is provided on the fixed plate (2), a fixed block (3) is slidably provided in the slide groove, a bag roll (4) is provided on the fixed block (3) through a rotating shaft, a first mounting frame (5) is also provided on the top of the bottom plate (1) on the right side of the fixed plate (2), a slide rail (6) is provided on the first mounting frame (5), a lifting plate (8) is slidably provided on the slide rail (6), a threaded rod (7) is also rotatably provided on the first mounting frame (5), the threaded rod (7) passes through the lifting plate (8) and is threadedly connected to the lifting plate (8), a heating box (12) is also provided at the bottom of the lifting plate (8), a heat sealing strip (13) is provided at the bottom of the heating box (12), a plurality of through holes are also evenly provided on the lifting plate (8), a slide rod (9) is slidably provided in the through hole, and a pressing plate (11) is provided at the bottom end of the slide rod (9).

2. The transverse sealing device of the bag making machine according to claim 1, characterized in that: A second mounting frame (14) is also provided on the top of the base plate (1) and located on the right side of the first mounting frame (5). A plurality of electric push rods (15) are evenly arranged on the second mounting frame (14). A mounting plate (16) is provided at the end of the telescopic arm at the bottom of the electric push rod (15), and a cutter (17) is also provided at the bottom of the mounting plate (16).

3. The transverse sealing device of the bag making machine according to claim 1, characterized in that: A motor (701) is also provided on the first mounting frame (5), and a power output shaft of the motor (701) is connected to the threaded rod (7) via a coupling.

4. The transverse sealing device of the bag making machine according to claim 1, characterized in that: A pressing spring (10) is also sleeved on the outside of the slide rod (9).

5. The transverse sealing device of the bag making machine according to claim 4, characterized in that: One end of the pressing spring (10) is connected to the pressing plate (11), and the other end of the pressing spring (10) is connected to the lifting plate (8).

6. The transverse sealing device of the bag making machine according to claim 5, characterized in that: A limiting block (901) is also provided on the slide bar (9) at the top of the lifting plate (8).

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