Cutter lifting mechanism for heat sealing cutter of sanitary bag making machine

Abstract

The utility model relates to the technical field of plastic bag processing, in particular to a heat-sealing cutter lifting mechanism of a sanitary bag making machine, which comprises a frame, and the frame comprises a fixed top, a pressed table, a chute block, a toothed bar, a gear and a bottom frame; the fixed top is connected to the top end of the frame, one side of the fixed top is connected with the air cylinders, the pressed table is connected to the bottom end of the fixed top through the two air cylinders, the lower sides of the air cylinders are connected with the connecting plate, the rotating handle is rotated by hand, the rotating rod is pushed to rotate, the rotating rod rotates in the connecting seat, the gear is driven to move at the top end of the toothed bar, and the fixed top and the pressed table are driven to move, so that the heat sealing position is adjusted. The pressing table is driven to ascend and descend to be matched with the heat sealing cutter to conduct heat sealing on a packaging bag, so that when the packaging bag passes through, the packaging bag is in short-time contact with the heat sealing cutter and the heat sealing plate, and the situation that the edge sealing effect is affected due to improper hot melting during edge sealing is avoided; the frame can be connected to one side of the manipulator through the sliding groove blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bag processing, in particular to a heat sealing knife lifting mechanism for a sanitary bag making machine. Background Art

[0002] In the paper, sanitary, food, and medical product packaging machine industries, the bag-making mechanism previously avoided continuous contact between the heat-sealing structure and the base plate when the packaging bag passed through. This caused the heat-sealing structure to overheat, resulting in excessive hot melting and affecting the edge sealing effect, seriously affecting subsequent operations, and affecting the stability and packaging speed of the entire machine. In addition, the heating surface of the heat-sealing structure is heated as a whole, and the heated length of the heating surface is too long, longer than twice the length of the sanitary bag or more. The long heating operation wastes energy and increases production costs. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a heat-sealing knife lifting mechanism for a sanitary bag making machine, which has the following advantages.

[0004] The top end of the gear train is connected with the gear abutting the bottom end of the gear train, and the bottom end of the gear train is connected with the gear train respectively.

[0005] Furthermore, the pressure platform includes a pressure plate, the bottom end of the pressure plate is connected to a pressure bottom, both ends of the pressure bottom are connected to two limit rods through two vertical rods, the top end of the pressure plate is connected to an insulation layer, and the insulation layer is sprayed with polyurethane insulation material.

[0006] Furthermore, the base frame includes a hydraulic rod, the telescopic end of the hydraulic rod is connected to a push rod, and the top end of the push rod is connected to a connecting rod.

[0007] Furthermore, the heat sealing knife includes a positioning column, and the positioning columns include but are not limited to two. The heat sealing knife is connected to the fixed top and bottom ends through the positioning column, the annular side surface at the bottom end of the positioning column is connected to a spring, the bottom end of the spring is connected to a knife holder, the side of the knife holder is connected to a side rod, the bottom end of the knife holder is connected to a knife body, the bottom end of the knife body is connected to a knife surface, one side of the knife body is connected to a heating layer, and the back of the knife body is connected to a scraper; the heating layer is divided into including but not limited to four areas, the heating layer of each area can be individually controlled for heating, and the heating layer is filled with electric heating wire.

[0008] Compared with the prior art, the advantages of the present invention are: turning the handle by hand to push the turning rod to rotate, the turning rod rotates in the connecting seat, driving the gear to move on the top of the gear rod, driving the fixed top and the pressure platform to move, thereby adjusting the position of the heat seal, driving the pressure platform to rise and fall, and cooperating with the heat sealing knife to heat seal the sanitary bag, so that when the packaging bag passes through, the packaging bag is in short contact with the heat sealing knife and the heat sealing plate, and the edge sealing will not be improperly hot-melted, affecting the edge sealing effect; the frame can be connected to one side of the operating machine through the slide block. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a three-dimensional structural diagram of a heat-sealing knife lifting mechanism of a sanitary bag making machine according to the present invention;

[0010] Figure 2 This is a front structural diagram of a heat-sealing knife lifting mechanism of a sanitary bag making machine according to the present invention;

[0011] Figure 3 This is a schematic diagram of the fixed top structure of the heat sealing knife lifting mechanism of a sanitary bag making machine of the present invention;

[0012] Figure 4 This is a schematic diagram of the top view of the pressure platform of the heat sealing knife lifting mechanism of the sanitary bag making machine of the utility model;

[0013] Figure 5 This is a partial structural diagram of the chassis of a heat-sealing knife lifting mechanism of a sanitary bag making machine according to the present invention;

[0014] Figure 6 The utility model is a schematic diagram of the internal structure of the chassis of the heat sealing knife lifting mechanism of the sanitary bag making machine.

[0015] The accompanying drawings are as follows: frame 1, fixed top 2, pressure platform 3, slide block 4, gear rod 5, gear 6, base frame 7, cylinder 9, connecting plate 91, limiting column 92, slide rod 10, rotating rod 11, rotating handle 12, heat sealing knife 8, pressure plate 31, pressure bottom 32, limiting rod 33, hydraulic rod 71, push rod 72, connecting rod 73, positioning column 81, spring 82, knife holder 83, knife body 84, knife surface 85, scraper 87. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] For examples, see Figure 1-6 The top of the gear 6 is connected to the annular side of the rotating rod 11, and the gear 6 is meshed with the gear 6 above the gear rod 5, and the bottom frame 7 is connected to the bottom end of the pressure platform 3, and the heat sealing knife 8 is connected to the bottom of the pressure platform 3, and the side of the rotating rod 11 is connected to the handle 12;

[0018] The pressure platform 3 includes a pressure plate 31, the bottom end of the pressure plate 31 is connected to a pressure bottom 32, and both ends of the pressure bottom 32 are connected to two limit rods 33 through two vertical rods. The top end of the pressure plate 31 is connected to an insulation layer, and the insulation layer is sprayed with polyurethane insulation material, which can insulate heat during the operation of the heat sealing knife, reduce energy consumption, and thus reduce production costs.

[0019] The base frame 7 includes a hydraulic rod 71, the telescopic end of the hydraulic rod 71 is connected to a push rod 72, the top of the push rod 72 is connected to a connecting rod 73, and the push rod 72 can push the connecting rod 73 to rotate, thereby driving the pressure platform to rise and fall, and cooperate with the heat sealing knife 8 to heat seal the sanitary bag;

[0020] The heat sealing knife 8 includes a positioning column 81, and the positioning columns 81 are not limited to two. The heat sealing knife 8 is connected to the bottom end of the fixed top 2 through the positioning column 81. The annular side surface of the bottom end of the positioning column 81 is connected to a spring 82, and the bottom end of the spring 82 is connected to a knife holder 83. The side of the knife holder 83 is connected to a side rod. The bottom end of the knife holder 83 is connected to a knife body 84, and the bottom end of the knife body 84 is connected to a knife surface 85. One side of the knife body 84 is connected to a heating layer 80, and the heating layer 80 is located at the top of the knife surface 85. The heating layer 80 heats the knife surface. The back of the knife body 84 is connected to a scraper 87; the heating layer 80 is divided into four areas, including but not limited to four areas. The heating layer 80 of each area can be controlled for heating separately. The heating layer 80 is filled with a heating wire, and the heating wire is filamentous. This design can increase its surface area and improve the heat exchange efficiency with the surrounding environment.

[0021] The heat sealing knife 8 pushes the fixed top 2 up and down through the cylinder 9, thereby driving the heat sealing knife to move up and down. When the knife surface 85 heat-seals the sanitary bag below it, the heating layer 80 in the knife body is divided into multiple independently controlled heating areas. The number of heating areas can be controlled according to the width of the sanitary bag, and it can be flexibly adjusted according to the width of the sanitary bag, thereby reducing energy consumption.

[0022] The push rod 72 can push the connecting rod 73 to rotate, thereby driving the pressure platform to rise and fall, and cooperating with the heat sealing knife 8 to heat seal the sanitary bag, so that when the packaging bag passes through, the packaging bag is in contact with the heat sealing knife and the heat sealing plate for a certain period of time, and the edge will not be improperly hot-melted while sealing, which will affect the edge sealing effect.

[0023] Working principle: Turn the handle 12 by hand to push the rotating rod to rotate, and the rotating rod 11 rotates in the connecting seat, driving the gear to move at the top of the gear rod 5, driving the fixed top 2 and the pressure platform 3 to move, thereby adjusting the position of the heat seal, and the sanitary bag passes between the upper and lower limit rods 33 to the top of the pressure plate 31, and the heat sealing knife 8 pushes the fixed top 2 to rise and fall through the cylinder 9, thereby driving the heat sealing knife to rise and fall, and the knife surface 85 presses the sanitary bag below it to the pressure plate for heat sealing, and the push rod 72 can push the connecting rod 73 to rotate, thereby driving the pressure platform to rise and fall, and cooperate with the heat sealing knife 8 to heat seal the sanitary bag, so that when the packaging bag passes, the packaging bag is in short contact with the heat sealing knife and the heat sealing plate, and the edge sealing will not be improperly hot-melted, affecting the edge sealing effect; the frame 1 can be connected to one side of the operating machine through the slide block 4.

[0024] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments 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, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0025] 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 heat sealing knife lifting mechanism for a sanitary bag making machine, comprising a frame (1), characterized in that: The frame (1) comprises a fixed top (2), a pressure platform (3), a slide block (4), a gear rod (5), a gear (6), and a base frame (7); the fixed top (2) is connected to the top of the frame (1), one side of the fixed top (2) is connected to a cylinder (9), the pressure platform (3) is connected to the bottom end of the fixed top (2) through two cylinders (9), the lower side of the cylinder (9) is connected to a connecting plate (91), the bottom end of the connecting plate (91) is connected to two slide bars (10), the connecting plate (91) is connected to the bottom end of the ... The top of the plate (91) is connected to the limiting column (92), the bottom of the slide rod (10) is connected to the slide block (4), the pressure platform (3) is connected to the rotating rod (11) through the connecting seat, the gear (6) is connected to the annular side of the rotating rod (11), the gear (6) is engaged with the top of the gear rod (5), the base frame (7) is connected to the bottom of the pressure platform (3), the bottom of the pressure platform (3) is connected to the heat sealing knife (8), and the side of the rotating rod (11) is connected to the rotating handle (12).

2. The heat sealing knife lifting mechanism of the sanitary bag making machine according to claim 1, characterized in that: The pressure platform (3) comprises a pressure plate (31), the bottom end of the pressure plate (31) is connected to a pressure bottom (32), both ends of the pressure bottom (32) are connected to two limit rods (33) via two vertical rods, and the top end of the pressure plate (31) is connected to a thermal insulation layer.

3. The heat sealing knife lifting mechanism of the sanitary bag making machine according to claim 1, characterized in that: The base frame (7) comprises a hydraulic rod (71), the telescopic end of the hydraulic rod (71) is connected to a push rod (72), and the top end of the push rod (72) is connected to a connecting rod (73).

4. The heat sealing knife lifting mechanism of the sanitary bag making machine according to claim 1, characterized in that: The heat sealing knife (8) includes a positioning column (81), and the positioning columns (81) include but are not limited to two. The heat sealing knife (8) is connected to the bottom end of the fixed top (2) through the positioning column (81), the annular side surface of the bottom end of the positioning column (81) is connected to a spring (82), the bottom end of the spring (82) is connected to a knife holder (83), the side of the knife holder (83) is connected to a side rod, the bottom end of the knife holder (83) is connected to a knife body (84), the bottom end of the knife body (84) is connected to a knife surface (85), one side of the knife body (84) is connected to a heating layer (80), and the back of the knife body (84) is connected to a scraper (87).

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