Heat sealing mechanism for food packaging film

Abstract

The utility model relates to a heat sealing mechanism for a food packaging film. The heat sealing mechanism is characterized by comprising a base, a sliding plate, a lifting plate, a lower die holder, a lower die plate, an upper die holder, an upper die plate, a top plate, a heating plate and an air cylinder, the sliding plate is installed at the top of the base through sliding rails and sliding blocks, guide rods are vertically and upwards arranged at the four corners of the top of the sliding plate, the lifting plate is installed on the guide rods in a lifting mode through linear bearings, a jacking mechanism for driving the lifting plate to ascend and descend is arranged at the bottom of the lifting plate, and the lower die base is installed at the top of the lifting plate. The lower die plate is installed on the top of the lower die base, the top plate is fixedly installed at the top ends of the guide rods, and the air cylinder is installed on the top of the top plate in an inverted hanging mode. The buffer spring is arranged between the upper die plate and the heating plate, when the air cylinder drives the upper die plate and the lower die plate to be closed, enough thrust is provided to enable the upper die plate and the lower die plate to be closed tightly, and under the buffering of the buffer spring, a film cannot be damaged by collision.

Description

Technical Field

[0001] The utility model relates to a heat-sealing mechanism for a food packaging film, belonging to the technical field of packaging equipment. Background Art

[0002] Plastic bag film is a bag made of polyethylene, polypropylene, polyester, nylon, etc. as the main raw materials. It is an indispensable item in people's daily life and is often used to hold other items. It is widely used because of its advantages of being cheap, extremely light, large capacity, and easy to store. When plastic bag film is used to package products, it is necessary to use a heat sealing mechanism to heat-seal the edges of the packaging bag to form a sealed packaging bag. When the traditional heat sealing mechanism is hot-pressing, the cylinder drives the upper mold and the lower mold to close the mold, and the film between the upper mold and the lower mold is hot-pressed and sealed. If the thrust of the cylinder piston rod cannot be accurately controlled, the mold will not be tightly closed or the film will be damaged.

[0003] Therefore, how to provide a food packaging heat sealing mechanism which can ensure tight mold clamping and will not damage the film is the research purpose of the utility model. Utility Model Content

[0004] In view of the deficiencies of the above-mentioned technology, the utility model provides a heat-sealing mechanism for food packaging film. By arranging a buffer spring between the upper template and the heating plate, when the cylinder drives the upper template and the lower template to close the mold, sufficient thrust is provided to make the upper template and the lower template close tightly, and under the buffering of the buffer spring, the film will not be damaged.

[0005] In order to solve the existing technical problems, the technical solution adopted by the utility model is:

[0006] The heat-sealing mechanism of a food packaging film is characterized in that it comprises a base, a sliding plate, a lifting plate, a lower mold base, a lower template, an upper mold base, an upper template, a top plate, a heating plate and a cylinder; the sliding plate is mounted on the top of the base through a slide rail slider, and guide rods are vertically upward at the four corners of the top of the sliding plate; the lifting plate is liftably mounted on the guide rods through linear bearings, and a lifting mechanism for driving the lifting plate to be lifted is provided at the bottom of the lifting plate, the lower mold base is mounted on the top of the lifting plate, the lower template is mounted on the top of the lower mold base, the top plate is fixedly mounted on the top of the guide rod, the cylinder is upside down mounted on the top of the top plate, the heating plate is mounted on the bottom end of the piston rod of the cylinder, the upper mold base is mounted on the bottom of the heating plate through a buffer spring, and the upper template is mounted on the inner bottom of the upper mold base.

[0007] Furthermore, a connecting plate is provided on the top of the heating plate, and the top of the connecting plate is connected to the piston rod of the cylinder.

[0008] Furthermore, circular mounting grooves matching the buffer spring are provided at both ends of the inner side of the upper die seat, one end of the buffer spring is fixedly mounted on the connecting plate by bolts, and the other end is fixedly mounted in the circular mounting groove by bolts.

[0009] Furthermore, the lower template is mounted on the lower mold base in a snap-fit ​​manner, snap-fits are provided on both sides of the lower template, and hooks matching the snap-fits are provided on both sides of the lower mold base.

[0010] The utility model has the beneficial effect that a buffer spring is arranged between the upper mold plate and the heating plate, and when the cylinder drives the upper mold plate and the lower mold plate to close the mold, sufficient thrust is provided to make the upper mold plate and the lower mold plate close the mold tightly, and under the buffering of the buffer spring, the film will not be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a partial structural explosion diagram of the utility model.

[0013] Figure 3 It is a top view of the upper die seat of the utility model.

[0014] Figure 4 It is a structural schematic diagram of the lower mold plate and the lower mold base of the utility model.

[0015] Among them: base 1, sliding plate 2, lifting plate 3, lower die base 4, lower template 5, upper die base 6, upper template 7, top plate 8, heating plate 9, cylinder 10, guide rod 11, jacking mechanism 12, buffer spring 13, connecting plate 14, circular mounting groove 15, buckle 16, hook 17. DETAILED DESCRIPTION

[0016] In order to make those skilled in the art better understand the technical solution of the utility model, the following Figure 1-4 The utility model is further analyzed.

[0017] like Figure 1-4As shown, a heat sealing mechanism for food packaging film is characterized in that it includes a base 1, a sliding plate 2, a lifting plate 3, a lower die base 4, a lower template 5, an upper die base 6, an upper template 7, a top plate 8, a heating plate 9 and a cylinder 10; the sliding plate 2 is installed on the top of the base 1 through a slide rail slider, the bottom of the sliding plate 2 is connected with a screw for adjusting the sliding, the top four corners of the sliding plate 2 are vertically upwardly provided with guide rods 11, the lifting plate 3 is movably installed on the guide rods 11 through a linear bearing, and the bottom of the lifting plate 3 is provided with a lifting mechanism 12 for driving it to rise and fall, the lower die base 4 is installed on the top of the lifting plate 3, the lower template 5 is installed on the top of the lower die base 4, the top plate 8 is fixedly installed on the top of the guide rod 11, the cylinder 10 is invertedly installed on the top of the top plate 8, the heating plate 9 is installed at the bottom end of the piston rod of the cylinder 10, the upper die base 6 is connected and installed below the heating plate 9 through a buffer spring 13, and the upper template 7 is installed at the inner bottom of the upper die base 6.

[0018] In this embodiment, preferably, a connecting plate 14 is provided on the top of the heating plate 9 , and the top of the connecting plate 14 is connected to the piston rod of the cylinder 10 .

[0019] In this embodiment, preferably, circular mounting grooves 15 matching the buffer spring 13 are provided at both ends of the inner side of the upper mold base 6, one end of the buffer spring 13 is fixedly mounted on the connecting plate 14 by bolts, and the other end is fixedly mounted in the circular mounting groove 15 by bolts.

[0020] In this embodiment, preferably, the lower template 5 is mounted on the lower mold base 4 in a snap-fit ​​manner, snap-fits 16 are provided on both sides of the lower template 5 , and hooks 17 matching the snap-fits 16 are provided on both sides of the lower mold base 4 .

[0021] The utility model provides a buffer spring 13 between the upper mold plate 7 and the heating plate 9. When the cylinder 10 drives the upper mold plate 7 and the lower mold plate 5 to close the mold, sufficient thrust is provided to close the upper mold plate 7 and the lower mold plate 5 tightly. Under the buffering of the buffer spring 13, the film will not be damaged.

[0022] The technical solution provided by the present application is introduced in detail above. The principles and implementation methods of the present application are explained in this article using embodiments. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technicians in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A heat sealing mechanism for food packaging film, characterized in that: It includes a base, a sliding plate, a lifting plate, a lower mold base, a lower mold plate, an upper mold base, an upper mold plate, a top plate, a heating plate and a cylinder; the sliding plate is installed on the top of the base through a slide rail slider, and guide rods are vertically upward at the four corners of the top of the sliding plate; the lifting plate is lifted and lowered on the guide rods through linear bearings, and a lifting mechanism for driving the lifting and lowering thereof is provided at the bottom of the lifting plate; the lower mold base is installed on the top of the lifting plate, the lower mold plate is installed on the top of the lower mold base, the top plate is fixedly installed on the top of the guide rod, the cylinder is installed upside down on the top of the top plate, the heating plate is installed at the bottom end of the piston rod of the cylinder, the upper mold base is installed below the heating plate through a buffer spring connection, and the upper mold plate is installed on the inner bottom of the upper mold base.

2. The heat sealing mechanism for food packaging film according to claim 1, characterized in that: A connecting plate is provided on the top of the heating plate, and the top of the connecting plate is connected to the piston rod of the cylinder.

3. The heat sealing mechanism for food packaging film according to claim 2, characterized in that: Circular mounting grooves matching the buffer spring are provided at both ends of the inner side of the upper die seat. One end of the buffer spring is fixedly mounted on the connecting plate by bolts, and the other end is fixedly mounted in the circular mounting groove by bolts.

4. The heat sealing mechanism for food packaging film according to claim 1, characterized in that: The lower template is mounted on the lower mold base in a snap-fit ​​manner, snap-fits are provided on both sides of the lower template, and hooks matching the snap-fits are provided on both sides of the lower mold base.

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