Heat sealing and cutting device for plastic flexible packaging bag making machine

Abstract

The heat sealing and cutting device for the plastic flexible packaging bag making machine comprises a supporting piece and a cutting piece, the supporting piece comprises a sliding rod frame, an opening and closing hydraulic rod is vertically fixed to the top face of the sliding rod frame, and a cutter groove seat is horizontally fixed to the top face of the bottom of the sliding rod frame; a first translation hydraulic rod is horizontally fixed to one side of the top face of the bottom of the sliding rod frame, and a brush base is vertically fixed to the output end of the first translation hydraulic rod. The sealing and cutting knife overcomes the defects that after an existing sealing and cutting knife is frequently in contact with a plastic skin, plastic colloid residues generated during hot cutting of a plastic bag are left on the surface of a notch, continuous hot sealing and cutting work can cause more and more colloid residues to be accumulated at a knife edge, spreading of heat of the knife edge during sealing and cutting is affected, the sealing and cutting effect is not thorough, and the sealing and cutting efficiency is low. The problems that residues are adhered to the plastic bag during sealing and cutting, so that particle stains exist on the cut plastic bag, and the particle stains exist on a sealing and cutting knife, so that the sealing effect of the packaging bag is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bag making machines, in particular to a heat sealing and cutting device for a plastic soft packaging bag making machine. Background Art

[0002] With the use of plastic bags in life, the demand for plastic bags is increasing. When producing and processing plastic bags, a bag making machine is needed to cut the plastic bags. The bag making machine uses a heat sealing and cutting device to cut the plastic bags.

[0003] The existing announcement number is CN219256626U, and the name is a heat sealing and cutting device for a plastic bag making machine, which includes a workbench, pillars are fixed at both ends of the top of the workbench, a top plate is arranged above the pillars, the top of the pillars are respectively fixed to the bottom two ends of the top plate, a push rod motor is fixed to the top of the top plate, the output end of the push rod motor is connected to the top plate, a sleeve beam is arranged between the pillars, the top of the sleeve beam is fixedly connected to the output end of the push rod motor, a heat sealing knife is fixed to the bottom of the sleeve beam, and a V-shaped frame is fixed to both ends of the top of the workbench between the pillars, and the V-shaped frame is connected to the top of the top plate. Both ends of the side close to each other are chiseled with inclined grooves, and sliders are slidably connected inside the inclined grooves. When the sleeve crossbeam drives the heat sealing knife to descend, it will touch the top of the T-bar and press it down. When the triangular plate descends, it will touch the shaft end of the slider and press down through the inclined surface of its side wall. As the triangular plate is pressed down, the two rubber pressure shafts will separate and descend through the slider in the inclined groove. When the rubber pressure shafts press the plastic bag, the rubber pressure shafts that are separated and pressed down from each other will flatten the front and rear ends of the hot air part of the plastic bag, so that there will be no wrinkles when the heat sealing knife heat-seals the plastic bag.

[0004] However, the sealing and cutting knife has a certain high temperature. After being heated, the sealing and cutting knife descends, and the conveying device feeds the material step by step. The sealing and cutting knife performs heat sealing and cutting processing by reciprocating lifting and lowering. Since the main body being processed is made of plastic material, the hot sealing and cutting knife often touches the plastic skin, and some plastic glue residues produced when hot cutting plastic bags will remain on its incision surface. Continuous heat sealing and cutting work will cause more and more glue residues to accumulate at the blade edge, which not only affects the heat transmission of the blade during sealing and cutting, resulting in incomplete sealing and cutting effect, but also the residues will stick to the plastic bag during sealing and cutting, resulting in particle stains on the cut plastic bag. The presence of particle stains on the sealing and cutting knife affects the sealing effect of the packaging bag. Utility Model Content

[0005] The utility model aims to provide a heat sealing and cutting device for a plastic flexible packaging bag making machine, aiming to improve the above-mentioned problems.

[0006] The utility model is achieved in this way:

[0007] A heat sealing and cutting device for a plastic flexible packaging bag making machine comprises a supporting member and a cutting member, the supporting member comprises a sliding rod frame, an opening and closing hydraulic rod is vertically fixed on the top surface of the sliding rod frame, and a cutting knife slot seat is horizontally fixed on the bottom top surface of the sliding rod frame, a first translation hydraulic rod is horizontally fixed on one side of the bottom top surface of the sliding rod frame, and a brush seat is vertically fixed on the output end of the first translation hydraulic rod, and the brush seat moves horizontally in the groove of the cutting knife slot seat, a cutting member is horizontally arranged inside the sliding rod frame, the cutting member comprises a perforated plate, the perforated plate is vertically slidably mounted on the sliding rod frame, and a cutting knife is vertically fixed on the bottom surface of the perforated plate, a second translation hydraulic rod is horizontally fixed on one side of the top surface of the sliding rod frame, a brush plate is horizontally slidably mounted on the cutting knife, and the cutting knife moves against the output end of the second translation hydraulic rod.

[0008] Furthermore, slide bars are horizontally fixed on both sides of the bottom surface of the cutting knife, and a second spring is horizontally fixed on one end of the slide bar.

[0009] Furthermore, a sliding groove is horizontally provided on the brush plate, and the sliding groove of the brush plate is slidably connected to the sliding bar.

[0010] Furthermore, the other end of the second spring is fixed on the brush plate.

[0011] Furthermore, fixing plates are fixed on both sides of the slide rod frame, and through holes are vertically penetrated through the fixing plates, and fixing nails are vertically penetrated through the fixing plates.

[0012] Furthermore, lifting members are horizontally arranged on the fixed plates on both sides of the slide rod frame, and the lifting members include a support plate, which is horizontally arranged on the upper side of the fixed plate, and a guide rod is vertically fixed on the bottom surface of the support plate, and the guide rod vertically slides through the through hole on the fixed plate.

[0013] Furthermore, a first spring is vertically sleeved on the guide rod, and two ends of the first spring are respectively fixed to the bottom end of the guide rod and the bottom surface of the fixed plate, a slide rail is horizontally fixed on the top surface of the support plate, and a slide plate is horizontally slidably installed on the slide rail.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model overcomes the problem that after the existing sealing and cutting knife often touches the plastic skin, some plastic glue residues generated when hot cutting the plastic bag will remain on the incision surface. Continuous hot sealing and cutting work will cause the glue residues on the knife edge to accumulate more and more, which not only affects the heat transmission of the knife edge during sealing and cutting, resulting in incomplete sealing and cutting effect, but also the residues will stick to the plastic bag during sealing and cutting, resulting in particle stains on the cut plastic bag. The existence of particle stains on the sealing and cutting knife affects the sealing effect of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the cutting piece in the embodiment of the utility model in the disassembled state;

[0020] Figure 4 It is a schematic structural diagram of the support member in the embodiment of the utility model in a disassembled state;

[0021] Figure 5 It is a schematic structural diagram of the lifting member in the embodiment of the utility model in a disassembled state.

[0022] In the figure: 1, support member; 11, slide rod frame; 12, cutter groove seat; 13, first translation hydraulic rod; 14, brush seat; 15, second translation hydraulic rod; 16, opening and closing hydraulic rod; 17, fixed plate; 171, through hole; 18, fixing nail; 19, lifting member; 191, support plate; 192, guide rod; 193, first spring; 194, slide rail; 195, slide plate; 2, cutting member; 21, orifice plate; 22, cutting knife; 23, slide bar; 24, second spring; 25, brush plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a heat sealing and cutting device for a plastic flexible packaging bag making machine includes a support member 1 and a cutting member 2. The support member 1 includes a slide bar frame 11, an opening and closing hydraulic rod 16 is vertically fixed on the top surface of the slide bar frame 11, and a cutting knife groove seat 12 is horizontally fixed on the bottom top surface of the slide bar frame 11. A first translation hydraulic rod 13 is horizontally fixed to one side of the bottom top surface of the slide bar frame 11, and a brush seat 14 is vertically fixed to the output end of the first translation hydraulic rod 13, and the brush seat 14 moves horizontally in the groove of the cutting knife groove seat 12. A cutting piece 2 is horizontally arranged inside, and the cutting piece 2 includes a perforated plate 21, which is vertically slidably mounted on the slide bar frame 11, and a cutting knife 22 is vertically fixed on the bottom surface of the perforated plate 21, and a second translation hydraulic rod 15 is horizontally fixed on one side of the top surface of the slide bar frame 11, and a brush plate 25 is horizontally slidably mounted on the second translation hydraulic rod 15 and the cutting knife 22, and the cutting knife 22 is pressed against the output end of the second translation hydraulic rod 15 for movement, and the opening and closing hydraulic rod 16 is started to extend to push the cutting piece 2 on the slide bar frame 11 to move downward during use , the heated cutting knife 22 is driven vertically to cut the cutting knife slot seat 12 of the slide bar frame 11, and then the plastic soft packaging bag is hot cut and divided. After the cutting, there are plastic particles adhered to the cutting knife 22 and the cutting knife slot seat 12. The first translation hydraulic rod 13 is started to extend and push the brush seat 14 to move, and the plastic particles adhered to the cutting knife slot seat 12 are brushed off. After the cutting, the cutting knife 22 moves up to a fixed height, and the second translation hydraulic rod 15 is started to push the brush plate 25 on the cutting knife 22 to slide horizontally, The plastic particles adhered to the cutting knife 22 are brushed off, which effectively ensures the cleanliness of the cutting knife 22 and the cutting knife slot seat 12, and avoids the accumulation of glue residues at the cutting knife 22 and the cutting knife slot seat 12, which not only affects the heat transfer of the blade during sealing and cutting, resulting in incomplete sealing and cutting effects, but also the residues will stick to the plastic bag during sealing and cutting, resulting in particle stains on the cut plastic bag. The presence of particle stains on the sealing and cutting knife affects the sealing effect of the packaging bag, thereby improving the tightness of the hot cutting of the cutting knife 22 and the cutting knife slot seat 12.

[0025] See also Figure 3 , slide bars 23 are horizontally fixed on both sides of the bottom surface of the cutting knife 22, and a second spring 24 is horizontally fixed at one end of the slide bar 23, a slide groove is horizontally opened on the brush plate 25, and the slide groove of the brush plate 25 is slidably connected with the slide bar 23, and the other end of the second spring 24 is fixed on the brush plate 25. During use, the second translation hydraulic rod 15 presses the brush plate 25 on the cutting knife 22 to move horizontally on the slide bar 23, pulling the first spring 193 to deform, brushing the cutting knife 22, and then after the second translation hydraulic rod 15 retracts, the cutting knife 22 recovers under the deformation action of the first spring 193.

[0026] See also Figure 4 and Figure 5 A fixing plate 17 is fixed on both sides of the slide rod frame 17, and a through hole 171 is vertically penetrated on the fixing plate 17, and a fixing nail 18 is vertically penetrated on the fixing plate 17. A lifting member 19 is horizontally arranged on the fixing plates 17 on both sides of the slide rod frame 17. The lifting member 19 includes a supporting plate 191, and the supporting plate 191 is horizontally arranged on the upper side of the fixing plate 17. A guide rod 192 is vertically fixed on the bottom surface of the supporting plate 191, and the guide rod 192 vertically slides through the through hole 171 on the fixing plate 17, and a first spring is vertically sleeved on the guide rod 192. 193, and the two ends of the first spring 193 are respectively fixed on the bottom end of the guide rod 192 and the bottom surface of the fixed plate 17, a slide rail 194 is horizontally fixed on the top surface of the support plate 191, and a slide plate 195 is horizontally slidably installed on the slide rail 194. During use, the slide plate 195 is horizontally slid on the slide rail 194, and the guide rod 192 on the slide plate 195 moves vertically in the through hole 171 of the fixed plate 17. Under the deformation pressure of the first spring 193, the plastic flexible packaging bag is pushed upward to be tensioned, so as to maintain the tension of the tension cutting of the plastic flexible packaging bag.

[0027] Working principle: During use, the opening and closing hydraulic rod 16 is started to extend and push the cutting piece 2 on the slide frame 11 to move downward, and the heated cutting knife 22 is driven vertically to cut the cutting knife slot seat 12 of the slide frame 11, and then the plastic flexible packaging bag is hot-cut and divided. Plastic particles are adhered to the cutting knife 22 and the cutting knife slot seat 12 after cutting. The first translation hydraulic rod 13 is started to extend and push the brush seat 14 to move, and the plastic particles adhered to the cutting knife slot seat 12 are brushed off. After the cutting, the cutting knife 22 moves up to a fixed height, and the second translation hydraulic rod 15 is started to push the brush plate 25 on the cutting knife 22 to slide horizontally, and the plastic particles adhered to the cutting knife 22 are brushed off, which effectively ensures the cleanliness of the cutting knife 22 and the cutting knife slot seat 12.

[0028] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heat sealing and cutting device for a plastic flexible packaging bag making machine, characterized in that: The invention comprises a support member (1) and a cutting member (2), wherein the support member (1) comprises a slide bar frame (11), an opening and closing hydraulic rod (16) is vertically fixed on the top surface of the slide bar frame (11), and a cutting knife groove seat (12) is horizontally fixed on the bottom top surface of the slide bar frame (11), a first translation hydraulic rod (13) is horizontally fixed on one side of the bottom top surface of the slide bar frame (11), and a brush seat (14) is vertically fixed on the output end of the first translation hydraulic rod (13), and the brush seat (14) moves horizontally in the groove of the cutting knife groove seat (12). The cutting member (2) is horizontally arranged inside the slide bar frame (11), and the cutting member (2) comprises a perforated plate (21). The perforated plate (21) is vertically slidably mounted on the slide bar frame (11), and a cutting knife (22) is vertically fixed on the bottom surface of the perforated plate (21). A second translation hydraulic rod (15) is horizontally fixed on one side of the top surface of the slide bar frame (11), and a brush plate (25) is horizontally slidably mounted on the cutting knife (22), and the cutting knife (22) moves by pressing against the output end of the second translation hydraulic rod (15).

2. A heat sealing and cutting device for a plastic flexible packaging bag making machine according to claim 1, characterized in that: Slide bars (23) are horizontally fixed on both sides of the bottom surface of the cutting knife (22), and a second spring (24) is horizontally fixed on one end of the slide bar (23).

3. The heat sealing and cutting device for a plastic flexible packaging bag making machine according to claim 2, characterized in that: The brush plate (25) is provided with a sliding groove horizontally, and the sliding groove of the brush plate (25) is slidably connected to the sliding bar (23).

4. A heat sealing and cutting device for a plastic flexible packaging bag making machine according to claim 3, characterized in that: The other end of the second spring (24) is fixed on the brush plate (25).

5. The heat sealing and cutting device for a plastic flexible packaging bag making machine according to claim 1, characterized in that: A fixing plate (17) is fixed to both sides of the slide bar frame (11), and a through hole (171) is vertically penetrated through the fixing plate (17), and a fixing nail (18) is vertically penetrated through the fixing plate (17).

6. A heat sealing and cutting device for a plastic flexible packaging bag making machine according to claim 5, characterized in that: Lifting members (19) are horizontally arranged on the fixed plates (17) on both sides of the slide rod frame (11), and the lifting members (19) include a supporting plate (191), and the supporting plate (191) is horizontally arranged on the upper side of the fixed plate (17), and a guide rod (192) is vertically fixed on the bottom surface of the supporting plate (191), and the guide rod (192) vertically slides through the through hole (171) on the fixed plate (17).

7. A heat sealing and cutting device for a plastic flexible packaging bag making machine according to claim 6, characterized in that: A first spring (193) is vertically sleeved on the guide rod (192), and two ends of the first spring (193) are respectively fixed to the bottom end of the guide rod (192) and the bottom surface of the fixed plate (17). A slide rail (194) is horizontally fixed on the top surface of the support plate (191), and a slide plate (195) is horizontally slidably mounted on the slide rail (194).

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