Ultrasonic heat-sealing device for packaging bag

Abstract

The invention discloses a packaging bag ultrasonic heat-sealing device which comprises an ultrasonic heat-sealing head and a heat-sealing bottom die which are oppositely arranged, and further comprises a pair of side plates which are oppositely arranged, an air cylinder I used for driving the ultrasonic heat-sealing head and an air cylinder II used for driving the heat-sealing bottom die are arranged between the pair of side plates, and the air cylinder I and the air cylinder II are oppositely arranged. A piston rod of the air cylinder I is connected with a rear moving plate, the ultrasonic heat-sealing head is arranged on the rear moving plate, a piston rod of the air cylinder II is connected with a front moving plate, and the heat-sealing bottom die is arranged on the front moving plate. The ultrasonic heat-sealing device for the packaging bag is reasonable in structural design, due to the fact that the positions of the heat-sealing head and the bottom die need to be accurate and reliable in heat-sealing of the packaging bag, the structure is compact, the occupied space is small, and arrangement and installation in a packaging machine are facilitated due to the fact that the sliding seat plate integrated with the guide structure is arranged and the driving structure of the bottom die is located above the bottom die.

Description

Technical Field

[0001] The invention relates to the technical field of heat sealing of packaging bags, in particular to an ultrasonic heat sealing device for packaging bags. Background Art

[0002] In a vacuum packaging machine, a heat sealing assembly is required to seal the bag head of the packaging bag; the existing packaging bag heat sealing assemblies are mostly electric hot-stamp heat sealing structures. If there are foreign objects at the bag mouth, reliable sealing cannot be achieved; for example, a food packaging machine heat sealing assembly disclosed in patent CN110182418A comprises: a box body; a horizontal axis, which is arranged in the box body; a swing rod, wherein the central attachment is rotatably mounted on the horizontal axis, and the swing rod is provided with three swing arms; an outer push-pull rod, a first end of which extends into the box body and can slide in the box body; an inner push-pull rod, a first end of which extends into the box body and can slide in the box body; a first connecting rod; a second connecting rod; an outer heat-sealing seat, which is fixedly connected to the second end of the outer push-pull rod; an inner heat-sealing seat, which is fixedly connected to the second end of the inner push-pull rod; a hot strip, one hot strip is arranged on each of the outer heat-sealing seat and the inner heat-sealing seat, and the hot strips on the outer heat-sealing seat and the inner heat-sealing seat are arranged opposite to each other; a heating tube, which is arranged in the hot strip; the use of hot strip sealing has the problem of unreliable sealing.

[0003] Ultrasonic heat sealing devices are also used in the prior art, but the existing ultrasonic heat sealing devices have a complex structure, occupy a large space, and are not conducive to arrangement in a vacuum packaging machine; for example, patent CN216330445U discloses a scalding device for a packaging bag making machine, which belongs to the technical field of bag making machines. The key points of its technical solution include a fixed frame, the fixed frame includes a lower positioning frame, an upper positioning frame, a separation knife frame and two ultrasonic scalding devices, the two ultrasonic scalding devices are respectively located on both sides of the lower positioning frame and the upper positioning frame, and the two ultrasonic scalding devices are respectively fixedly connected to the top and bottom ends of the fixed frame. The ultrasonic scalding device is started to heat the lower scalding frame and the upper scalding frame, and the second electric control rod is started to drive the lower scalding frame and the upper scalding frame to move relative to and away from each other, so as to realize scalding and heat sealing of the packaging bag. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an ultrasonic heat sealing device for packaging bags to achieve the purpose of compact structure and convenient layout.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The ultrasonic heat-sealing device for packaging bags comprises an ultrasonic heat-sealing head and a heat-sealing bottom mold which are arranged opposite to each other, and also comprises a pair of side plates which are arranged opposite to each other, a cylinder I for driving the ultrasonic heat-sealing head and a cylinder II for driving the heat-sealing bottom mold are arranged between the pair of side plates, the cylinder I and the cylinder II are arranged opposite to each other, the piston rod of the cylinder I is connected with a rear movable plate, the ultrasonic heat-sealing head is arranged on the rear movable plate, the piston rod of the cylinder II is connected with a front movable plate, and the heat-sealing bottom mold is arranged on the front movable plate.

[0007] Further:

[0008] The side plate is an L-shaped plate structure.

[0009] A notch is formed at the lower part of the L-shaped plate, and the ultrasonic heat sealing head and the heat sealing bottom mold are arranged corresponding to the notch.

[0010] The cylinder II is fixed between a pair of side plates through a front fixing plate, and the front fixing plate and the side plates are arranged vertically.

[0011] A front sealing plate is arranged between the front ends of the pair of side plates, a guide rod is arranged between the front fixed plate and the front sealing plate, and the front movable plate is a front sliding seat plate, which cooperates with the guide rod.

[0012] The cylinder I is fixed by a rear fixing plate arranged between the rear ends of a pair of side plates, and the rear movable plate is located inside the rear fixing plate.

[0013] An intermediate fixing plate is arranged between the pair of side plates, a guide rod is arranged between the rear fixing plate and the intermediate fixing plate, and the rear movable plate is a rear sliding seat plate, which cooperates with the guide rod.

[0014] The ultrasonic heat sealing head is fixed on the rear sliding seat plate through a connecting column.

[0015] The guide rods between the rear fixing plate and the middle fixing plate form a group, a part of the guide rods are located above the connecting column, and the other part of the guide rods are located below the connecting column.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The ultrasonic heat sealing device for packaging bags has a reasonable structural design. Since the heat sealing of packaging bags requires the heat sealing head and the bottom mold to be positioned accurately and reliably, a slide plate integrated with a guide structure is arranged, and the driving structure of the bottom mold is arranged above the bottom mold. The structure is compact, small in space is occupied, and it is conducive to layout and installation in the packaging machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1 It is a schematic diagram of the structure of the device of the present invention.

[0020] Figure 2 and 3 Schematic diagram of the interior of the device of the present invention.

[0021] In the figure:

[0022] 1. Side plate, 2. Heat-sealing bottom mold, 3. Front slide plate, 4. Cylinder I, 5. Ultrasonic heat-sealing mechanism, 6. Ultrasonic heat-sealing head, 7. Front fixed plate, 8. Cylinder II, 9. Guide rod, 10. Rear fixed plate, 11. Rear slide plate. DETAILED DESCRIPTION

[0023] The specific implementation modes of the present invention will be further explained in detail below through the description of embodiments with reference to the accompanying drawings.

[0024] like Figures 1 to 3 As shown, the packaging bag ultrasonic heat sealing device comprises a pair of side plates 1 arranged oppositely, and an ultrasonic heat sealing head 6 and a heat sealing bottom mold 2 arranged oppositely; a cylinder Ⅰ4 for driving the ultrasonic heat sealing head to move and a cylinder Ⅱ8 for driving the heat sealing bottom mold to move are arranged between the pair of side plates, and the cylinder Ⅰ and the cylinder Ⅱ are arranged oppositely;

[0025] The piston rod of cylinder Ⅰ4 is connected with a rear movable plate, and an ultrasonic heat sealing head is arranged on the rear movable plate, and the ultrasonic heat sealing head is located below cylinder Ⅰ; the piston rod of cylinder Ⅱ is connected with a front movable plate, and a heat sealing bottom mold is arranged on the front movable plate, and the heat sealing bottom mold is located below cylinder Ⅱ, and the structure is compact.

[0026] The side plate is an L-shaped plate structure, and the main components are arranged between a pair of side plates through a fixing plate; a notch is formed at the lower part of the L-shaped plate, and the ultrasonic heat sealing head and the heat sealing bottom mold are arranged corresponding to the notch, and the structure is compact.

[0027] Cylinder II is fixed between a pair of side plates through a front fixing plate 7, and the front fixing plate and the side plates are arranged vertically. A front sealing plate is arranged between the front ends of the pair of side plates, and a guide rod is arranged between the front fixing plate and the front sealing plate. The front movable plate is a front sliding seat plate 3, and the front sliding seat plate cooperates with the guide rod 9. The heat sealing bottom mold is fixed at the lower end of the front sliding seat plate, and the structure is compact, stable and reliable.

[0028] The cylinder Ⅰ4 is fixed by a rear fixed plate 10 arranged between the rear ends of a pair of side plates, and the rear movable plate is located inside the rear fixed plate; an intermediate fixed plate is arranged between the pair of side plates, a guide rod is arranged between the rear fixed plate and the intermediate fixed plate, and the rear movable plate is a rear sliding seat plate 11, and the rear sliding seat plate cooperates with the guide rod;

[0029] The ultrasonic heat sealing head is fixed on one side of the rear sliding seat plate through a connecting column, the ultrasonic heat sealing mechanism is fixed on the rear fixed plate, and the ultrasonic heat sealing mechanism 5 is provided with a telescopic joint, which is connected to the inner end of the connecting column; the guide rods between the rear fixed plate and the middle fixed plate are a group, one part of the guide rods is located above the connecting column, and the other part of the guide rods is located below the connecting column, and the structure is stable and reliable.

[0030] The ultrasonic heat sealing device for packaging bags of the present invention has a reasonable structural design. Since the heat sealing of packaging bags requires the heat sealing head and the bottom mold to be positioned accurately and reliably, the slide plate integrated with the guide structure is arranged, and the driving structure of the bottom mold is arranged above the bottom mold. The structure is compact, occupies little space, and is conducive to layout and installation in the packaging machine.

[0031] The above is only an explanation of the preferred embodiments of the present invention, and the above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0032] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An ultrasonic heat-sealing device for packaging bags, comprising an ultrasonic heat-sealing head and a heat-sealing bottom mold arranged opposite to each other, characterized in that: It also includes a pair of side plates arranged opposite to each other, a cylinder I for driving an ultrasonic heat sealing head and a cylinder II for driving a heat sealing bottom mold are arranged between the pair of side plates, cylinder I and cylinder II are arranged opposite to each other, the piston rod of cylinder I is connected to a rear movable plate, the ultrasonic heat sealing head is arranged on the rear movable plate, the piston rod of cylinder II is connected to a front movable plate, and the heat sealing bottom mold is arranged on the front movable plate.

2. The ultrasonic heat sealing device for packaging bags according to claim 1, characterized in that: The side plate is an L-shaped plate structure.

3. The ultrasonic heat sealing device for packaging bags as claimed in claim 2, characterized in that: A notch is formed at the lower part of the L-shaped plate, and the ultrasonic heat sealing head and the heat sealing bottom mold are arranged corresponding to the notch.

4. The ultrasonic heat sealing device for packaging bags according to claim 1, characterized in that: The cylinder II is fixed between a pair of side plates through a front fixing plate, and the front fixing plate and the side plates are arranged vertically.

5. The ultrasonic heat sealing device for packaging bags as claimed in claim 4, characterized in that: A front sealing plate is arranged between the front ends of the pair of side plates, a guide rod is arranged between the front fixed plate and the front sealing plate, and the front movable plate is a front sliding seat plate, which cooperates with the guide rod.

6. The ultrasonic heat sealing device for packaging bags according to claim 1, characterized in that: The cylinder I is fixed by a rear fixing plate arranged between the rear ends of a pair of side plates, and the rear movable plate is located inside the rear fixing plate.

7. The ultrasonic heat sealing device for packaging bags as claimed in claim 6, characterized in that: An intermediate fixing plate is arranged between the pair of side plates, a guide rod is arranged between the rear fixing plate and the intermediate fixing plate, and the rear movable plate is a rear sliding seat plate, which cooperates with the guide rod.

8. The ultrasonic heat sealing device for packaging bags as claimed in claim 7, characterized in that: The ultrasonic heat sealing head is fixed on the rear sliding seat plate through a connecting column.

9. The ultrasonic heat sealing device for packaging bags as claimed in claim 8, characterized in that: The guide rods between the rear fixing plate and the middle fixing plate form a group, a part of the guide rods are located above the connecting column, and the other part of the guide rods are located below the connecting column.

Images