Sealing and shearing device for garbage bag production

By designing a sealing shearing device for garbage bag production with a cutter located behind the heat sealing knife and falling simplifiedly, the problem of garbage bag sticking to the heating strip at high temperatures is solved, and the normal cutting and heat sealing of garbage bags are achieved.

CN222819673UActive Publication Date: 2025-05-02DONGGUAN BAOWEI PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202421595759.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-08
Publication Date
2025-05-02
Estimated Expiration
2034-07-08

AI Technical Summary

Technical Problem

In the existing garbage bag processing device, the virtual cutting knife and the upper heating strip operate simultaneously, causing the garbage bag to stick to the upper heating strip at high temperature, affecting the normal progress of processing work.

Method used

A sealing shear device for the production of garbage bags is designed. The cutting knife is located behind the heat sealing knife, and the cutting knife and the heat sealing knife are simplified. When the cutting knife is lowered and cuts the plastic bag, the garbage bag adhered to the heat sealing knife can be peeled off.

Benefits of technology

It solves the problem of adhesion of garbage bags during heat sealing, ensures that the garbage bags can move and be cut normally, and avoids interruption of processing work.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sealing and shearing device for garbage bag production, which relates to the technical field of garbage bag production and comprises a cutter, and the bottom of the cutter is zigzag. A heat sealing cutter is arranged on one side of the cutter, and the width of the heat sealing cutter is the same as that of the cutter; the top of the cutter is fixedly connected with the bottom of the C-shaped frame, the top of the heat sealing cutter is fixedly connected with the bottom of the connecting rod, and the upper end of the connecting rod is fixedly connected with the connecting frame. A first air cylinder drives a C-shaped frame to ascend through a connecting rod, the C-shaped frame drives a connecting frame to descend through a gear, and therefore the connecting frame drives a heat sealing cutter to descend, and the heat sealing cutter conducts heat sealing on a plastic bag. After heat sealing is completed, the first air cylinder drives the C-shaped frame to descend through the connecting rod, the C-shaped frame synchronously drives the cutter to descend to cut the garbage bag, the heat sealing cutter ascends while the cutter descends, the cutter can strip the plastic bag adhering to the bottom of the heat sealing cutter, and therefore the plastic bag can move normally and cannot be affected by the heat sealing cutter.
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Description

Technical Field

[0001] The utility model relates to the technical field of garbage bag production, in particular to a sealing shearing device for garbage bag production. Background Art

[0002] Garbage bags, as the name suggests, are bags for garbage. This small bag brings great convenience to thousands of households, provides important protection for environmental protection, and is even conducive to garbage recycling and classification. In addition to the continuous development of new technologies, consumers can use the different colors of garbage bags to implement garbage classification and storage. Black bags can be placed in the kitchen to store non-recyclable garbage; pink bags can be placed in the living room and study to store recyclable garbage. This way of garbage classification is both economical and environmentally friendly, and resources can be properly recycled and reused.

[0003] Chinese patent publication number CN 215704559 U discloses a processing device for producing garbage bags, including an operating table connected to a base, a material discharge structure and a winding structure are connected to the base on both sides of the operating table, a support frame is connected to the base, a telescopic structure is connected to the support frame above the operating table, a support plate is connected to the telescopic structure, a virtual cutter and an upper heating strip are connected to the support plate, a groove is provided on the operating table directly below the upper heating strip, an electric telescopic rod is connected in the groove, a lower heating strip is connected to the electric telescopic rod, and electric heating coils are connected to the upper heating strip and the lower heating strip;

[0004] The above-mentioned garbage bag processing device cuts the garbage bag with a virtual cutting knife, and heat-seals the garbage bag with the cooperation of the upper heating strip and the lower heating strip; however, the virtual cutting knife and the upper heating strip of the above-mentioned garbage bag processing device are located on the same horizontal line and act simultaneously, and heat-seals while cutting. However, the garbage bag, as a plastic product, will produce stickiness when encountering high temperature, and thus adhere to the upper heating strip. When the upper heating strip rises, it will drive the garbage bag adhered to it to rise, resulting in the garbage bag processing work cannot be carried out normally. Utility Model Content

[0005] The utility model aims to provide a sealing shearing device for producing garbage bags, wherein a cutter for cutting garbage bags is located behind a heat sealing knife, and the cutter and the heat sealing knife are simplified and descending, and when the cutter descends to cut the plastic bag, the garbage bag adhered to the heat sealing knife can be separated from the heat sealing knife, so as to solve the technical problems raised by the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A sealing shearing device for producing garbage bags, comprising a cutter, the bottom of which is serrated; a heat sealing knife is arranged on one side of the cutter, and the width of the heat sealing knife is the same as that of the cutter; the top of the cutter is fixedly connected to the bottom of a C-shaped frame, the top of the heat sealing knife is fixedly connected to the bottom of a connecting rod, and the upper end of the connecting rod is fixedly connected to the connecting frame; a tooth groove is arranged on one side adjacent to the C-shaped frame and the connecting frame, and a gear is arranged between the C-shaped frame and the connecting frame, and the two sides of the gear are respectively meshed with the tooth grooves of the C-shaped frame and the connecting frame;

[0008] The top of the C-shaped frame is fixedly connected to a connecting rod, and one end of the connecting rod away from the C-shaped frame is fixedly connected to a telescopic rod of a cylinder; both sides of the C-shaped frame are slidably connected to a plurality of guide rods, and both sides of the connecting frame are slidably connected to a plurality of slide rails.

[0009] As a further technical solution of the utility model, a spring is sleeved on the outer side of the lower end of the connecting rod, and the spring is located between the connecting frame and the heat sealing knife, and one end of the spring is fixedly connected to the connecting frame and the other end is fixedly connected to the heat sealing knife.

[0010] As a further technical solution of the utility model, a support frame 1 is provided on the outer side of the cutting knife and the heat sealing knife, and a plurality of slide rails are fixedly connected to the inner wall of the support frame 1 on the side away from the connecting frame; both ends of a plurality of guide rods are fixedly connected to the support frame 1; a cylinder 1 is fixedly connected to the top of the support frame 1, and a circular hole is provided on the top of the support frame 1 for the telescopic rod of the cylinder 1 to pass through, and the gear is rotatably connected to the support frame 1.

[0011] As a further technical solution of the utility model, a rear pressing assembly is provided on one side of the support frame one, and a front pressing assembly is provided on the side of the rear pressing assembly away from the support frame one; two transition rollers are provided between the front pressing assembly and the rear pressing assembly; the bottom of the support frame one is fixedly connected to the profile frame, and both ends of the two transition rollers are rotatably connected to the profile frame through bearing seats.

[0012] As a further technical solution of the utility model, a unwinding wheel is provided on the side of the front pressing assembly away from the transition roller, and the middle of the unwinding wheel is rotatably connected to a support roller; both ends of the support roller are movably connected to the profile frame; two cylinders are provided on both sides of the unwinding wheel, and the two cylinders are fixedly connected to the profile frame; a controller is provided on one side of the profile frame.

[0013] As a further technical solution of the present invention, the rear pressing assembly and the front pressing assembly have the same structure; the rear pressing assembly includes a lower pressing roller, and an upper pressing roller is provided above the lower pressing roller; both ends of the lower pressing roller are rotationally connected to the second support frame, and both ends of the upper pressing roller are rotationally connected to two connecting parts, and the two connecting parts are slidingly connected to the two ends of the second support frame respectively.

[0014] As a further technical solution of the utility model, one end of the upper pressure roller is fixedly connected to an upper gear, the upper gear is located on the inner side of the connecting piece, and the bottom of the upper gear is meshed with the lower gear, and the lower gear is fixedly connected to one end of the lower pressure roller.

[0015] As a further technical solution of the utility model, a screw rod is rotatably connected to the middle of the top of the two connecting parts, and the two screw rods are respectively threadedly connected to the two ends of the support frame two; the top of the two screw rods are fixedly connected to a torsion wheel, and the two torsion wheels are located above the support frame two.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. In the utility model, driven by the winding device, the garbage bag on the unwinding wheel moves to the bottom of the two transition rollers through the front pressing assembly, then moves to the rear pressing assembly through the bottom of the two transition rollers, and then moves to the bottom of the heat sealing knife through the rear pressing assembly; the cylinder 1 drives the C-shaped frame to rise through the connecting rod, and the C-shaped frame drives the connecting frame to descend through the gear, so that the connecting frame drives the heat sealing knife to descend, and the heat sealing knife heat-seals the plastic bag; after the heat sealing is completed, the cylinder 1 drives the C-shaped frame to descend through the connecting rod, and the C-shaped frame synchronously drives the cutter to descend to cut the garbage bag, and the heat sealing knife rises while the cutter descends, and the cutter can peel off the plastic bag adhered to the bottom of the heat sealing knife, so that the plastic bag can move normally without being affected by the heat sealing knife;

[0018] 2. In the utility model, the slide rail plays a role in stabilizing the connecting frame, preventing the connecting frame from cutting obliquely when moving, thereby ensuring that the heat sealing knife will not tilt, so that the heat sealing work of the garbage bag can be carried out normally; similarly, the guide rod can ensure the stability of the C-shaped frame and the cutter when moving;

[0019] 3. In the utility model, the garbage bag moves between the upper pressure roller and the lower gear. The upper pressure roller cooperates with the lower gear to press the garbage bag so that the garbage bag can always move to the heat sealing knife and the cutting knife in a flat state, thereby ensuring that the heat sealing and cutting work of the garbage bag can be carried out normally; the two transition rollers play a role in increasing the tension of the garbage bag, thereby further increasing the flatness of the garbage bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0021] Figure 2 This utility model Figure 1 Another perspective of the picture.

[0022] Figure 3 This utility model Figure 1 Rear view of.

[0023] Figure 4 This utility model Figure 3 Another perspective of the picture.

[0024] Figure 5 This utility model Figure 1 Side view of.

[0025] Figure 6 This utility model Figure 5 AA section view.

[0026] Figure 7 This utility model Figure 4 A partial enlarged view of .

[0027] Figure 8 This utility model Figure 5 A partial enlarged view of .

[0028] Fig. 9 This utility model Figure 6 A partial enlarged view of .

[0029] Fig.10 It is a three-dimensional structural schematic diagram of the rear-mounted compression assembly in the utility model.

[0030] In the figure: 1-cutter, 2-C-shaped frame, 3-connecting rod, 4-cylinder 1, 5-slide rail, 6-connecting frame, 7-connecting rod, 8-heat sealing knife, 9-spring, 10-support frame 1, 11-guide rod, 12-rear pressing assembly, 13-front pressing assembly, 14-transition roller, 15-unwinding wheel, 16-support roller, 17-cylinder 2, 18-profile frame, 19-controller, 20-gear;

[0031] 121 - lower pressure roller, 122 - upper pressure roller, 123 - lower gear, 124 - connecting piece, 125 - lead screw, 126 - twisting wheel, 127 - supporting frame 2, 128 - upper gear. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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 creative work are within the scope of protection of the utility model.

[0033] See also Figure 1-10In an embodiment of the utility model, a sealing shearing device for producing garbage bags comprises a cutter 1, the bottom of which is serrated; a heat sealing knife 8 is provided on one side of the cutter 1, and the width of the heat sealing knife 8 is the same as that of the cutter 1; the top of the cutter 1 is fixedly connected to the bottom of the C-shaped frame 2, the top of the heat sealing knife 8 is fixedly connected to the bottom of the connecting rod 7, and the upper end of the connecting rod 7 is fixedly connected to the connecting frame 6; a tooth groove is provided on one side adjacent to the C-shaped frame 2 and the connecting frame 6, and a gear 20 is provided between the C-shaped frame 2 and the connecting frame 6, and the two sides of the gear 20 are respectively meshed with the tooth grooves of the C-shaped frame 2 and the connecting frame 6;

[0034] The top of the C-shaped frame 2 is fixedly connected to the connecting rod 3, and the end of the connecting rod 3 away from the C-shaped frame 2 is fixedly connected to the telescopic rod of the cylinder 1 4; both sides of the C-shaped frame 2 are slidably connected to a plurality of guide rods 11, and both sides of the connecting frame 6 are slidably connected to a plurality of slide rails 5;

[0035] A spring 9 is sleeved on the outer side of the lower end of the connecting rod 7, and the spring 9 is located between the connecting frame 6 and the heat sealing knife 8, and one end of the spring 9 is fixedly connected to the connecting frame 6, and the other end is fixedly connected to the heat sealing knife 8;

[0036] A support frame 10 is provided on the outer side of the cutter 1 and the heat sealing knife 8, and a plurality of slide rails 5 are fixedly connected to the inner wall of the support frame 10 on the side away from the connecting frame 6; both ends of a plurality of guide rods 11 are fixedly connected to the support frame 10; a cylinder 4 is fixedly connected to the top of the support frame 10, and a circular hole is provided on the top of the support frame 10 for the telescopic rod of the cylinder 4 to pass through, and a gear 20 is rotatably connected to the support frame 10.

[0037] By adopting the above technical scheme, driven by the winding device, the garbage bag on the unwinding wheel 15 moves to the bottom of the two transition rollers 14 through the front pressing assembly 13, and then moves to the rear pressing assembly 12 through the bottom of the two transition rollers 14, and then moves to the bottom of the heat sealing knife 8 through the rear pressing assembly 12; the cylinder 14 drives the C-shaped frame 2 to rise through the connecting rod 3, and the C-shaped frame 2 drives the connecting frame 6 to descend through the gear 20, so that the connecting frame 6 drives the heat sealing knife 8 to descend, and the heat sealing knife 8 heat-seals the plastic bag; after the heat sealing is completed, the cylinder 14 drives the C-shaped frame 2 to descend through the connecting rod 3, and the C-shaped frame 2 simultaneously drives the cutter 1 to descend to cut the garbage bag, and the heat sealing knife 8 rises while the cutter 1 descends, and the cutter 1 can peel off the plastic bag adhered to the bottom of the heat sealing knife 8, so that the plastic bag can move normally without being affected by the heat sealing knife 8.

[0038] In this embodiment, a rear pressing assembly 12 is provided on one side of the support frame 10, and a front pressing assembly 13 is provided on the side of the rear pressing assembly 12 away from the support frame 10; two transition rollers 14 are provided between the front pressing assembly 13 and the rear pressing assembly 12; the bottom of the support frame 10 is fixedly connected to the profile frame 18, and both ends of the two transition rollers 14 are rotatably connected to the profile frame 18 through a bearing seat;

[0039] The front pressing assembly 13 is provided with an unwinding wheel 15 on the side away from the transition roller 14, and the middle of the unwinding wheel 15 is rotatably connected to a support roller 16; both ends of the support roller 16 are movably connected to the profile frame 18; both sides of the unwinding wheel 15 are provided with cylinders 17, and the two cylinders 17 are fixedly connected to the profile frame 18; a controller 19 is provided on one side of the profile frame 18.

[0040] By adopting the above technical solution, the slide rail 5 plays a role in stabilizing the connecting frame 6, preventing the connecting frame 6 from cutting obliquely when moving, thereby ensuring that the heat sealing knife 8 will not tilt, allowing the heat sealing work of the garbage bag to proceed normally; similarly, the guide rod 11 can ensure the stability of the C-shaped frame 2 and the cutter 1 when moving.

[0041] In this embodiment, the post-pressing assembly 12 and the pre-pressing assembly 13 have the same structure; the post-pressing assembly 12 includes a lower pressing roller 121, and an upper pressing roller 122 is provided above the lower pressing roller 121; both ends of the lower pressing roller 121 are rotatably connected to the second support frame 127, and both ends of the upper pressing roller 122 are rotatably connected to two connecting members 124, and the two connecting members 124 are slidably connected to both ends of the second support frame 127;

[0042] One end of the upper pressure roller 122 is fixedly connected to an upper gear 128, the upper gear 128 is located inside the connecting member 124, and the bottom of the upper gear 128 is meshed with the lower gear 123, and the lower gear 123 is fixedly connected to one end of the lower pressure roller 121;

[0043] A screw rod 125 is rotatably connected to the middle of the top of the two connecting members 124, and the two screw rods 125 are respectively threadedly connected to the two ends of the support frame 127; the top of the two screw rods 125 is fixedly connected to a torsion wheel 126, and the two torsion wheels 126 are both located above the support frame 127.

[0044] By adopting the above technical solution, the garbage bag moves between the upper pressure roller 122 and the lower gear 123. The upper pressure roller 122 cooperates with the lower gear 123 to press the garbage bag so that the garbage bag can always move to the heat sealing knife 8 and the cutting knife 1 in a flat state, thereby ensuring that the heat sealing and cutting of the garbage bag can be carried out normally; the two transition rollers 14 play a role in increasing the tension of the garbage bag, thereby further increasing the flatness of the garbage bag.

[0045] The working principle of the utility model is as follows: driven by the winding device, the garbage bag on the unwinding wheel 15 moves to the bottom of the two transition rollers 14 through the front pressing assembly 13, and then moves to the rear pressing assembly 12 through the bottom of the two transition rollers 14, and then moves to the bottom of the heat sealing knife 8 through the rear pressing assembly 12; the cylinder 14 drives the C-shaped frame 2 to rise through the connecting rod 3, and the C-shaped frame 2 drives the connecting frame 6 to descend through the gear 20, so that the connecting frame 6 drives the heat sealing knife 8 to descend, and the heat sealing knife 8 heat-seals the plastic bag; after the heat sealing is completed, the cylinder 14 drives the C-shaped frame 2 to descend through the connecting rod 3, and the C-shaped frame 2 synchronously drives the cutter 1 to descend to cut the garbage bag, and the heat sealing knife 8 rises while the cutter 1 descends, and the cutter 1 can peel off the plastic bag adhered to the bottom of the heat sealing knife 8, so that the plastic bag can move normally and will not be affected by the heat sealing knife 8;

[0046] The slide rail 5 stabilizes the connecting frame 6 to prevent the connecting frame 6 from cutting obliquely when moving, thereby ensuring that the heat sealing knife 8 does not tilt, so that the heat sealing work of the garbage bag can proceed normally; similarly, the guide rod 11 can ensure the stability of the C-shaped frame 2 and the cutter 1 when moving;

[0047] The garbage bag moves between the upper pressing roller 122 and the lower gear 123. The upper pressing roller 122 cooperates with the lower gear 123 to press the garbage bag so that the garbage bag can always move to the heat sealing knife 8 and the cutting knife 1 in a flat state, thereby ensuring that the heat sealing and cutting of the garbage bag can be carried out normally; the two transition rollers 14 play a role in increasing the tension of the garbage bag, thereby further increasing the flatness of the garbage bag.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sealing shearing device for garbage bag production, characterized in that: The invention comprises a cutter (1), the bottom of which is sawtooth-shaped; a heat sealing knife (8) is provided on one side of the cutter (1), and the width of the heat sealing knife (8) is the same as the width of the cutter (1); the top of the cutter (1) is fixedly connected to the bottom of a C-shaped frame (2), the top of the heat sealing knife (8) is fixedly connected to the bottom of a connecting rod (7), and the upper end of the connecting rod (7) is fixedly connected to a connecting frame (6); a tooth groove is provided on one side adjacent to the C-shaped frame (2) and the connecting frame (6), and a gear (20) is provided between the C-shaped frame (2) and the connecting frame (6), and the two sides of the gear (20) are respectively meshed with the tooth grooves of the C-shaped frame (2) and the connecting frame (6); The top of the C-shaped frame (2) is fixedly connected to the connecting rod (3), and the end of the connecting rod (3) away from the C-shaped frame (2) is fixedly connected to the telescopic rod of the cylinder (4); both sides of the C-shaped frame (2) are slidably connected to a plurality of guide rods (11), and both sides of the connecting frame (6) are slidably connected to a plurality of slide rails (5).

2. The sealing and shearing device for producing garbage bags according to claim 1, characterized in that: A spring (9) is sleeved on the outer side of the lower end of the connecting rod (7), and the spring (9) is located between the connecting frame (6) and the heat sealing knife (8), and one end of the spring (9) is fixedly connected to the connecting frame (6) and the other end is fixedly connected to the heat sealing knife (8).

3. The sealing and shearing device for garbage bag production according to claim 2, characterized in that: A support frame (10) is provided on the outer side of the cutting knife (1) and the heat sealing knife (8); a plurality of slide rails (5) are fixedly connected to the inner wall of the support frame (10) on the side away from the connecting frame (6); both ends of a plurality of guide rods (11) are fixedly connected to the support frame (10); a cylinder (4) is fixedly connected to the top of the support frame (10), and a circular hole is provided on the top of the support frame (10) for the telescopic rod of the cylinder (4) to pass through; and a gear (20) is rotatably connected to the support frame (10).

4. The sealing and shearing device for producing garbage bags according to claim 3, characterized in that: A rear pressing assembly (12) is provided on one side of the support frame (10), and a front pressing assembly (13) is provided on the side of the rear pressing assembly (12) away from the support frame (10); two transition rollers (14) are provided between the front pressing assembly (13) and the rear pressing assembly (12); the bottom of the support frame (10) is fixedly connected to the profile frame (18), and both ends of the two transition rollers (14) are rotatably connected to the profile frame (18) through a bearing seat.

5. The sealing and shearing device for producing garbage bags according to claim 4, characterized in that: The front pressing assembly (13) is provided with an unwinding wheel (15) on the side away from the transition roller (14), and the middle of the unwinding wheel (15) is rotatably connected to a support roller (16); both ends of the support roller (16) are movably connected to the profile frame (18); cylinders (17) are provided on both sides of the unwinding wheel (15), and the two cylinders (17) are fixedly connected to the profile frame (18); a controller (19) is provided on one side of the profile frame (18).

6. The sealing and shearing device for producing garbage bags according to claim 5, characterized in that: The rear pressing assembly (12) and the front pressing assembly (13) have the same structure; the rear pressing assembly (12) comprises a lower pressing roller (121), and an upper pressing roller (122) is arranged above the lower pressing roller (121); both ends of the lower pressing roller (121) are rotationally connected to the second support frame (127), and both ends of the upper pressing roller (122) are rotationally connected to two connecting members (124), and the two connecting members (124) are slidingly connected to the two ends of the second support frame (127).

7. The sealing and shearing device for producing garbage bags according to claim 6, characterized in that: One end of the upper pressure roller (122) is fixedly connected to an upper gear (128), the upper gear (128) is located inside the connecting piece (124), and the bottom of the upper gear (128) is meshed with the lower gear (123), and the lower gear (123) is fixedly connected to one end of the lower pressure roller (121).

8. The sealing and shearing device for producing garbage bags according to claim 7, characterized in that: A screw rod (125) is rotatably connected in the middle of the top of the two connecting members (124), and the two screw rods (125) are respectively threadedly connected to the two ends of the second support frame (127); the top of the two screw rods (125) is fixedly connected to a torsion wheel (126), and the two torsion wheels (126) are located above the second support frame (127).