WO2023129109A2

WO2023129109A2 - A sealing device for packaging machines

Info

Publication number: WO2023129109A2
Application number: PCT/TR2022/051724
Authority: WO
Inventors: Yiğit ÇAM
Original assignee: Atha Maki̇na Anoni̇m Şi̇rketi̇
Priority date: 2021-12-30
Filing date: 2022-12-30
Publication date: 2023-07-06
Also published as: WO2023129109A3

Abstract

The invention relates a sealing device that used in packaging machines (100) and it comprises; primary and secondary jaws (10, 20) that positioned oppositely to each other and perpendicular to the direction of arrival of the packaging (A) for seal the passing material therebetween, two linear primary shafts (13) connected to the primary jaw (10) and primary jaw plate (12) connected to other ends of said primary shafts (13); two linear secondary shafts (22) connected to the secondary jaw (20) and secondary jaw plate (21) connected to other ends of said secondary shafts (22); a crank rod (30) with two connecting rods (31), that one is connected to the primary jaw plate (12) and the second one is connected to the secondary jaw plate, and a driving component (40) that simultaneously brings the primary and secondary jaw plates (12, 21) into contact and moves away from each other by providing a rotational drive to said crank rod (30).

Description

A SEALING DEVICE FOR PACKAGING MACHINES

FIELD OF THE INVENTION

The invention relates to a sealing device includes horizontal jaws that arranged to perform the sealing process which used in packaging machines.

TEKNIK PRIOR ART

Sealing devices that used in packaging machines with jaw structures are used that make hot contact with the top and bottom of the packaging materials and sticks the relevant surfaces together.

Said jaws are pushed towards each other by various driving methods and the packaging material is passed through the contact area that occurs as a result of this pushing. In order to provide this drive, motors that provide rotational drive are generally used. In the mentioned structures, crank rods are generally used to convert the rotational movement provided by the motor to the linear movement required for jaw contact.

In known systems, a separate crank rod is generally used for each jaw and is driven by a single actuating element in relation to each other, or driven by multiple actuating elements with a separate driving component for each crank rod. This increases the weight of the sealing assemblies considering the number of crank rods and drive elements.

One of the machines that will set an example for the state of the art is shown in Figure 4. In this embodiment, the primary and secondary jaws are mutually positioned to seal the packaging material passing therebetween, perpendicular to the package arrival direction; an upper plate connected to said primary jaw, two linear primary shafts connected to said upper plate, and a primary jaw plate connected to other ends of said primary shafts; two linear primary shafts connected to the secondary jaw; two crank rods, one of which is connected to the primary jaw plate and the other to the secondary shaft; and a drive element that simultaneously brings the primary and secondary jaw plate into contact and moves away from each other by providing a rotational drive to the crank rod and a guide, preferably a belt system for changing the direction of the rotational movement provided by said drive element.

One of the biggest problems here is that the primary jaw plate at the bottom side and the top plate have to be provided with a close width to each other. In this case, the total covered area of the mechanism is greatly increased. Another important problem is the total weight of the machine due to the complex structure that is, due to the increased number of elements.

As a result, all abovementioned problems have made it necessary to make an improvement in the relevant technical field.

AIM OF THE INVENTION

The present invention aims to eliminate the abovementioned problems and to make a development in the relevant technical field.

Main object of the invention is to reveal a lighter and less space-saving sealing mechanism structure.

BRIEF DESCRIPTION OF THE INVENTION

The invention is related to a sealing device for packaging machines so as to fulfil all aims mentioned above and will be obtained from the following detailed description. Accordingly, the present invention relates a sealing device that used in packaging machines and it comprises; primary and secondary jaws that positioned oppositely to each other and perpendicular to the direction of arrival of the packaging for seal the passing material therebetween, two linear primary shafts connected to the primary jaw and primary jaw plate connected to other ends of said primary shafts; two linear secondary shafts connected to the secondary jaw and secondary jaw plate connected to other ends of said secondary shafts; a crank rod with two connecting rods, that one is connected to the primary jaw plate and the second one is connected to the secondary jaw plate, and a driving component that simultaneously brings the primary and secondary jaw plates into contact and moves away from each other by providing a rotational drive to said crank rod.

Thus, it is ensured that the primary and secondary jaws are driven by a single crank connecting rod with two arms and in this way the positioning of the crank rod, it is possible to apply power to the crank rod without changing the driving direction of the driving component for providing the rotational drive with eliminating the need for belt-like elements necessary for the rotation of the rotational drive.

Another preferred embodiment of the invention, said secondary shafts are positioned between primary shafts.

Another preferred embodiment of the invention, it comprises by a stationary plate that fixed between the crank rod and the secondary jaw and having channels for the primary and secondary shafts to pass.

Another preferred embodiment of the invention, said driving component is connected to the crank rod in such a way that the drive direction does not change.

Another preferred embodiment of the invention, it comprises an upper plate that connected to said primary jaw, and said primary shafts that connected to the said upper plate.

Another preferred embodiment of the invention, primary jaw plate is wider than the secondary jaw plate.

Another preferred embodiment of the invention, dimensions of the primary shaft and the secondary shaft, provided that the secondary jaw plate remains under the primary jaw plate which both in the closed and open positions of the primary and secondary jaws.

Thus, some space is gained by preventing said relatively wide primary jaw plate from being at the bottom.

Another preferred embodiment of the invention, the primary and secondary jaws comprise at least one heating element to heat at least one of them.

Another preferred embodiment of the invention, the primary and secondary jaws include a heating element to heat both.

In order to achieve all the objectives mentioned above and which will emerge from the detailed description below, the present invention is a packaging machine that a packaging material feeding unit in a packaging feeding direction and primary and secondary jaws moving vertically with respect to said packaging feeding direction that includes a sealing device which it is suitable for one of the embodiments that will emerge from any of claims 1 -8 or detailed description.

BRIEF DESCRIPTION OF DRAWINGS

Figure 1 is a schematic front view of the sealing device which is the subject of the invention.

Figure 2 is a schematic side view of the sealing device which is the subject of the invention.

Figure 3 is a schematic side view of the packaging machine which is the subject of the invention.

Figure 4 is a schematic front view of a sealing device that included in the state of the art.

The protection scope of the invention is specified in the claims and cannot be limited to the description made for illustrative purposes in this brief and detailed description. It is clear that a person skilled in the art can present similar embodiments in the light of the above descriptions without departing from the main theme of the invention.

DESCRIPTION OF THE REFERENCES IN FIGURES

1. Sealing device

10. Primary jaw

11. Upper plate

12. Primary jaw plate

13. Primary shaft

20. Secondary jaw

21. Secondary jaw plate

22. Secondary shaft

30. Crank rod

31. Connecting rod

40. Driving component

50. Stationary plate

51. Tubular sheaths 100. Packaging machine

R. Rotation axis

A. Package

AY. Package feeding direction

K. Channel

DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, the invention a sealing device (1 ) for packaging machines (100) is described by means of examples only for clarifying the subject matter such that no limiting effect is created.

The invention relates to a sealing device (1 ) includes horizontal jaws that arranged to perform the sealing process which used in packaging machines (100).

Referring to Figure 1 and 2; said sealing device (1 ) comprises two movable jaws, that are primary and secondary jaws (10, 20). Said primary and secondary jaws (10, 20) are heated by heating elements (not shown in the figures) and provide the sealing process by melting the packaging that material made of polymer or metallic meltable material passing between them, which are in contact with each other. The driving system, which will be explained below, has been used to provide the said movement.

Said primary jaw (10) is connected to an upper plate (11 ). Primary shafts (13) are arranged at both ends of the upper plate (11 ). The primary shafts (13) can be connected directly to the primary jaw (10) by changing the dimensioning of the primary jaw (10). Said primary shafts (13) are arranged cylindrically.

The primary shafts (13) pass through channels (K) provided on a stationary plate (50). Here, the stationary plate (50) can be an external plate or the body of the packaging machine (100). Tubular sheaths (51 ) that are arranged to guide the primary shafts (13) and extends perpendicular to the surface that are located on the surface of said stationary plate (50).

A primary jaw plate (12) is connected to the inner end of the primary shafts (13) on the inside of the stationary plate (50). Here, the primary shafts (13) can move linearly in the direction of the arrow in Figure 1 . Mentioned secondary jaw (20) is directly connected to the secondary shafts (22). In addition, the secondary jaw (20) can be connected to an external plate and the secondary shafts (22) can be connected to the said plate, but in the preferred embodiment, the secondary jaw (20) and secondary shafts (22) are directly connected to each other. Said secondary shafts (22) are arranged cylindrically.

Secondary shafts (22) pass through channels (K) provided on a stationary plate (50). Here, the stationary plate (50) can be an external plate or the body of the packaging machine (100).

A secondary jaw plate (21 ) is connected to the inner end of the secondary shafts (22) on the inside of the stationary plate (50). Here, the secondary shafts (22) can move linearly in the direction of the arrow in Figure 1 .

Said primary and secondary jaw plate (12, 21 ) are arranged parallel to each other. Here, the secondary jaw plate (21 ) is provided narrower than the primary jaw plate (12), the secondary shafts (22) connecting the secondary jaw (20) to the secondary jaw plate (21 ) are provided in such a way that they remain between the said primary shafts (13). Here, the primary and secondary shafts (13, 22) are preferably dimensioned in such a way that the secondary jaw plate (22) is positioned lower than the primary jaw plate (12), that is, further away from the stationary plate (50). Accordingly, compared to the prior art in Figure 4, the use of some space on the sides of the sealing assembly has been eliminated.

A crank rod (30) is positioned between said primary and secondary jaw plates (12, 21 ). The crank rod (30) is used to convert the rotational drive into linear motion. Said crank rod (30) has two connecting rods (31 ) and these connecting rods (31 ) are connected to the crank rod (30), preferably opposite each other and rotatably. The end of one of these connecting rods (31 ) is connected to the primary jaw plate (12) and the other end of the other connecting rod (31 ) is connected to the secondary jaw plate (21 ).

The output of a driving component (40) providing rotational drive is directly connected to the crank rod (30). Here, the rotation axis (R) of the crank rod (30) and the output rotation axis (R) of the driving component (40) are provided in the same way.

Here, despite the rotational movement of the crank rod (30), the primary and secondary jaw plates (12, 13) connected to the connecting rods (31 ) move towards each other simultaneously. Accordingly, the primary jaw (10) and the secondary jaw (20) move towards each other. This movement towards each other is actually provided by the movement of the primary and secondary jaws (10, 20) in opposite directions relative to each other. As a result of this movement, the jaws come into contact with each other and the sealing process takes place.

When the contact is made and the crank rod (30) completes its half turn, the primary and secondary jaws (10, 20) move away from each other by moving in opposite directions and return to their initial position. Here, synchronous movement is provided to the primary and secondary jaws (20) by a single crank rod (30) and a driving component (40) directly connected to this crank rod (30).

Referring to Figure 3; said sealing device (1 ) is used in packaging machines (100). Said packaging machines (100) have feeding systems (not shown in the figures) to feed the packaging (A) with materials, and said feeding systems feed the packaging (A) material in a package feeding direction (AY) linearly, passing between the primary and secondary jaws (10, 20). Here, the movement directions of the primary and secondary jaws (10, 20) shown in Figures 1 and 2 are perpendicular to the package feeding direction (AY) and the sealing device (1 ) is connected to the packaging machine (100) according to this examination.

The protection scope of the invention has been mentioned in the claims that are attached and the invention cannot be limited to the embodiments described in this detailed description. It is clear that a person skilled in the art can provide similar embodiments within the scope of the above-mentioned descriptions without deviating from the main theme of the invention.

Claims

1. The invention relates a sealing device that used in packaging machines (100) and it comprises; primary and secondary jaws (10, 20) that positioned oppositely to each other and perpendicular to the direction of arrival of the packaging (A) for seal the passing material therebetween, two linear primary shafts (13) connected to the primary jaw (10) and primary jaw plate (12) connected to other ends of said primary shafts (13); two linear secondary shafts (22) connected to the secondary jaw (20) and secondary jaw plate (21 ) connected to other ends of said secondary shafts (22); a crank rod (30) with two connecting rods (31 ), that one is connected to the primary jaw plate (12) and the second one is connected to the secondary jaw plate, and a driving component (40) that simultaneously brings the primary and secondary jaw plates (12, 21 ) into contact and moves away from each other by providing a rotational drive to said crank rod (30).

2. A sealing device (1 ) according to claim 1 , characterized by said secondary shafts (22) are positioned between primary shafts (13).

3. A sealing device (1 ) according to claim 1 , comprises by a stationary plate (50) that fixed between the crank rod (30) and the secondary jaw (20) and having channels (K) for the primary and secondary shafts (13, 22) to pass.

4. A sealing device (1 ) according to claim 1 , characterized by said driving component (40) is connected to the crank rod (30) in such a way that the drive direction does not change.

5. A sealing device (1 ) according to claim 1 , characterized by comprising an upper plate (11 ) that connected to said primary jaw (10), and said primary shafts (13) that connected to the said upper plate (11 ).

6. A sealing device (1 ) according to claim 5, characterized by said primary jaw plate (12) is wider than the secondary jaw plate (21 ).

8 A sealing device (1) according to claim 1 , characterized by dimensions of the primary shaft (13) and the secondary shaft (22), provided that the secondary jaw plate (21 ) remains under the primary jaw plate (12) which both in the closed and open positions of the primary and secondary jaws (10, 20). A sealing device (1) according to any one of the above claims, characterized in that; it comprises the primary and secondary jaws (10, 20) comprise at least one heating element to heat at least one of them. A sealing device (1) according to claim 8, characterized by the primary and secondary jaws (10, 20) include a heating element to heat both. The invention relates a packaging machine (100) comprising a sealing device (1 ) according to any one of the above claims that includes a packaging (A) material feeding unit in a packaging feed direction and said package (A) having primary and secondary jaws (10, 20) that move vertically with respect to the feeding direction.

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