Heat-sealing and heat-cutting bag making device

Abstract

The utility model discloses a heat-sealing and heat-cutting bag-making device, belongs to the technical field of bag-making processing, and aims to solve the problem that an output end of an air cylinder is easily eccentrically damaged due to the fact that an existing device is lack of guiding the stroke of the air cylinder, the heat-sealing and heat-cutting bag-making device comprises a frame body, and mounting seats are fixedly connected to the lower surface of the top and the upper surface of the bottom of the frame body; a sliding rod is fixedly connected between every two corresponding mounting seats, an air cylinder is fixedly connected to the top of the frame body, a connecting block is fixedly connected to the output end of the air cylinder, a first sliding plate is fixedly connected to the bottom of the connecting block, two guide rods are slidably connected to the inner wall of the first sliding plate, and springs are connected to the outer walls of the two guide rods in a sleeving mode; by arranging the double sliding rods, the driving track of the air cylinder is limited and guided, meanwhile, the guide rod is matched with the spring, the connection error of the air cylinder and the connecting block can be absorbed, the operation of the air cylinder is further protected, the stroke of the air cylinder is prevented from being blocked and damaged, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of bag making, and in particular relates to a heat sealing and hot cutting bag making device. Background Art

[0002] With the continuous improvement of people's living standards, the demand for plastic bags is getting higher and higher. Bag making machine is a machine for making various plastic packaging bags or other material packaging bags. Its processing range is various sizes, thicknesses and specifications of plastic or other material packaging bags. Generally speaking, plastic packaging bags are the main products. The heat sealing and hot cutting mechanism of the bag making machine adopts the hot pressure sealing method for heat sealing. Bag making machine is a kind of equipment that performs predetermined ironing on the prefabricated double-layer plastic film and is accompanied by a die-cutting process to make plastic bags.

[0003] The prior art discloses a heat-sealing and hot-cutting bag-making device for a bag-making machine with a patent announcement number of CN213733738U. The patent includes an equipment box, a plastic rotating drum and a feeding hopper. A driving motor is nested and connected to the outer side of the equipment box, and a sealed box door is hingedly fixed to the outer side of the equipment box. The plastic rotating drum is arranged directly above the equipment casing, and a first guide slide bar is nested and connected to one side of the equipment casing. A side orientation plate is welded and fixed to the outer side of the first guide slide bar. The feeding hopper is welded and fixed to the bottom plate of the equipment box, and an equipment arm is arranged inside the equipment box. The device adopts a plane gear and an equipment arm, and the plane gear drives the spur gear and the equipment arm to slide vertically, and the distance between the two sets of equipment arms is adjusted according to the processing requirements. However, the following deficiencies still exist in actual use: from a practical point of view, the device uses a cylinder as a driving part, but the device lacks a guiding structure for the motion trajectory of the cylinder, and the output end of the cylinder is easily blocked and damaged during long-term lifting and lowering operation.

[0004] Therefore, a heat-sealing and heat-cutting bag-making device is needed to solve the problem in the prior art that the lack of cylinder stroke guidance easily leads to eccentric damage to the cylinder output end. Utility Model Content

[0005] The utility model aims to provide a heat-sealing and heat-cutting bag-making device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a heat-sealing and heat-cutting bag-making device comprises a frame, a top lower surface and a bottom upper surface of the frame are fixedly connected to mounting seats, a sliding rod is fixedly connected between every two corresponding mounting seats, the top of the frame is fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to a connecting block, the bottom of the connecting block is fixedly connected to a first slide plate, the inner wall of the first slide plate is slidably connected to two guide rods, the outer walls of the two guide rods are sleeved with springs, the bottoms of the two guide rods are fixedly connected to a second slide plate, the bottom of the second slide plate is fixedly connected to an upper heat-sealing knife, the bottom of the upper heat-sealing knife is fixedly connected to a hot cutting knife, the outer walls of the two slide rods are slidably connected to a third slide plate near the bottom position, the top of the third slide plate is fixedly connected to a lower heat-sealing knife, the top of the lower heat-sealing knife is provided with a hot cutting groove corresponding to the hot cutting knife, and linkage mechanisms are arranged on both sides of the first slide plate and both sides of the third slide plate.

[0007] It should be noted in the solution that observation ports are provided on both sides of the frame.

[0008] It is further worth noting that the first slide plate and the second slide plate are both slidably connected to the outer wall of the slide rod.

[0009] It should be further explained that the spring is fixedly connected between the bottom of the first slide plate and the top of the second slide plate.

[0010] As a preferred embodiment, the outer wall of the hot cutting knife is tightly fitted with the inner wall of the hot cutting groove.

[0011] As a preferred embodiment, the linkage mechanism includes a rotating plate rotatably connected to the inner side of the frame, the top of the rotating plate is rotatably connected to a first connecting rod, the top of the first connecting rod is rotatably connected to a first linkage plate, the bottom of the rotating plate is rotatably connected to a second connecting rod, and the bottom of the second connecting rod is rotatably connected to a second linkage plate.

[0012] As a preferred implementation, the first linkage plate is fixedly connected to the outer side of the first slide plate, and the second linkage plate is fixedly connected to the outer side of the third slide plate.

[0013] Compared with the prior art, the heat-sealing and heat-cutting bag-making device provided by the utility model has at least the following beneficial effects:

[0014] (1) By setting up a double sliding rod, the driving trajectory of the cylinder is limited and guided. At the same time, the guide rod and the spring cooperate to absorb the connection error between the cylinder and the connecting block, further protecting the operation of the cylinder, avoiding the cylinder stroke from being damaged, and extending the service life of the device.

[0015] (2) By setting up a guide rod and a spring in coordination, a buffering effect is played on the heat sealing and hot cutting process, thereby avoiding pulling the plastic bag during hot cutting and causing product deformation. At the same time, a linkage mechanism is set up to improve the processing efficiency of heat sealing and hot cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0018] Figure 3 It is a partial exploded view of the upper heat sealing knife and the lower heat sealing knife of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the linkage mechanism of the utility model.

[0020] In the figure: 1, frame; 2, mounting seat; 3, slide rod; 4, cylinder; 5, connecting block; 6, first slide plate; 7, guide rod; 8, spring; 9, second slide plate; 10, upper heat sealing knife; 11, hot cutting knife; 12, third slide plate; 13, lower heat sealing knife; 14, hot cutting groove; 15, linkage mechanism; 1501, rotating plate; 1502, first connecting rod; 1503, first linkage plate; 1504, second connecting rod; 1505, second linkage plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the embodiments.

[0022] See also Figure 1-4 The utility model provides a heat-sealing and heat-cutting bag-making device, comprising a frame 1, a mounting seat 2 is fixedly connected to the lower surface of the top and the upper surface of the bottom of the frame 1, a sliding rod 3 is fixedly connected between every two corresponding mounting seats 2, a cylinder 4 is fixedly connected to the top of the frame 1, a connecting block 5 is fixedly connected to the output end of the cylinder 4, a first slide plate 6 is fixedly connected to the bottom of the connecting block 5, two guide rods 7 are slidably connected to the inner wall of the first slide plate 6, springs 8 are sleeved on the outer walls of the two guide rods 7, a second slide plate 9 is fixedly connected to the bottom of the two guide rods 7, an upper heat-sealing knife 10 is fixedly connected to the bottom of the second slide plate 9, a heat-cutting knife 11 is fixedly connected to the bottom of the upper heat-sealing knife 10, a third slide plate 12 is slidably connected to the outer walls of the two slide bars 3 near the bottom position, a lower heat-sealing knife 13 is fixedly connected to the top of the third slide plate 12, a heat-cutting groove 14 corresponding to the heat-cutting knife 11 is opened on the top of the lower heat-sealing knife 13, and a linkage mechanism 15 is arranged on both sides of the first slide plate 6 and both sides of the third slide plate 12.

[0023] Further Figure 1 and Figure 2As shown, it is worth mentioning that both sides of the frame 1 are provided with observation ports, which are convenient for the staff to observe the heat sealing and cutting process, and also convenient for the inspection and maintenance of the inside of the device.

[0024] Further as Figure 1 and Figure 2 As shown, it is worth explaining in detail that the first slide 6 and the second slide 9 are both slidably connected to the outer wall of the slide rod 3, and the slide rod 3 limits and guides the movement of the first slide 6 and the second slide 9, and cooperates with the cylinder 4 to prevent the cylinder 4 from being blocked during the stroke.

[0025] According to the above working process, it can be known that by setting the double sliding rod 3, the driving trajectory of the cylinder 4 is limited and guided. At the same time, the guide rod 7 and the spring 8 cooperate to absorb the connection error between the cylinder 4 and the connecting block 5, further protecting the operation of the cylinder 4, avoiding the cylinder 4 from being damaged due to the stroke, and extending the service life of the device.

[0026] Further as Figure 1 and Figure 2 As shown, it is worth explaining in detail that the spring 8 is fixedly connected between the bottom of the first slide plate 6 and the top of the second slide plate 9, and the guide rod 7 and the spring 8 cooperate with each other to buffer the heat sealing and hot cutting process, thereby avoiding pulling the plastic bag during hot cutting and causing product deformation.

[0027] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that the outer wall of the hot cutting knife 11 is tightly fitted with the inner wall of the hot cutting groove 14, and the hot cutting knife 11 cooperates with the hot cutting groove 14 to complete the hot cutting work while heat sealing, thereby improving the bag making speed.

[0028] Further as Figure 4 As shown, it is worth specifically explaining that the linkage mechanism 15 includes a rotating plate 1501 rotatably connected to the inner side of the frame 1, the top of the rotating plate 1501 is rotatably connected to the first connecting rod 1502, the top of the first connecting rod 1502 is rotatably connected to the first linkage plate 1503, the bottom of the rotating plate 1501 is rotatably connected to the second connecting rod 1504, and the bottom of the second connecting rod 1504 is rotatably connected to the second linkage plate 1505. By setting the linkage mechanism 15, the upper heat sealing knife 10 and the lower heat sealing knife 13 move at the same time, thereby improving the processing efficiency of heat sealing and hot cutting.

[0029] Further as Figure 4 As shown, it is worth explaining in detail that the first linkage plate 1503 is fixedly connected to the outer side of the first slide plate 6, and the second linkage plate 1505 is fixedly connected to the outer side of the third slide plate 12, ensuring that the first slide plate 6 and the third slide plate 12 are displaced toward each other at the same time to complete the heat sealing and hot cutting work.

[0030] This solution has the following working process: in actual use, the plastic bag to be sealed is passed between the upper heat-sealing knife 10 and the lower heat-sealing knife 13, the cylinder 4 is turned on to drive the connecting block 5 to descend, so that the first slide plate 6 and the second slide plate 9 follow and descend, and under the action of the rotating plate 1501, the first linkage plate 1503 descends and drives the second linkage plate 1505 to rise, so that the upper heat-sealing knife 10 descends and the lower heat-sealing knife 13 rises, completing the heat-sealing work on the plastic bag. While heat-sealing, the heat cutting knife 11 and the heat cutting groove 14 are tightly fitted to heat-cut the heat-sealed part to complete the bag making work.

[0031] In summary: by setting the double sliding rod 3, the driving trajectory of the cylinder 4 is limited and guided. At the same time, the guide rod 7 and the spring 8 cooperate to absorb the connection error between the cylinder 4 and the connecting block 5, further protecting the operation of the cylinder 4, avoiding the cylinder 4 stroke being blocked and damaged, and extending the service life of the device; by setting the guide rod 7 and the spring 8 in coordination, a buffering effect is played on the heat sealing and hot cutting process, avoiding the deformation of the product caused by pulling the plastic bag during hot cutting, and at the same time a linkage mechanism 15 is provided to improve the processing efficiency of heat sealing and hot cutting.

Claims

1. A heat-sealing and heat-cutting bag-making device, comprising a frame (1), characterized in that: The frame (1) is fixedly connected to a mounting seat (2) on the lower surface of the top and the upper surface of the bottom, and a sliding rod (3) is fixedly connected between every two corresponding mounting seats (2). The frame (1) is fixedly connected to a cylinder (4) on the top, and a connecting block (5) is fixedly connected to the output end of the cylinder (4). The connecting block (5) is fixedly connected to a first slide plate (6) on the bottom, and the inner wall of the first slide plate (6) is slidably connected to two guide rods (7). The outer walls of the two guide rods (7) are sleeved with springs (8), and the bottoms of the two guide rods (7) are fixedly connected to the cylinder (4). A second slide plate (9) is connected, the bottom of the second slide plate (9) is fixedly connected to an upper heat sealing knife (10), the bottom of the upper heat sealing knife (10) is fixedly connected to a hot cutting knife (11), the outer walls of the two slide bars (3) are slidably connected to a third slide plate (12) near the bottom, the top of the third slide plate (12) is fixedly connected to a lower heat sealing knife (13), the top of the lower heat sealing knife (13) is provided with a hot cutting groove (14) corresponding to the hot cutting knife (11), and linkage mechanisms (15) are provided on both sides of the first slide plate (6) and both sides of the third slide plate (12).

2. The heat-sealing and heat-cutting bag-making device according to claim 1, characterized in that: Observation ports are provided on both sides of the frame (1).

3. The heat-sealing and heat-cutting bag-making device according to claim 1, characterized in that: The first slide plate (6) and the second slide plate (9) are both slidably connected to the outer wall of the slide rod (3).

4. The heat-sealing and heat-cutting bag-making device according to claim 1, characterized in that: The spring (8) is fixedly connected between the bottom of the first slide plate (6) and the top of the second slide plate (9).

5. The heat-sealing and heat-cutting bag-making device according to claim 1, characterized in that: The outer wall of the hot cutting knife (11) is tightly fitted with the inner wall of the hot cutting groove (14).

6. The heat-sealing and heat-cutting bag-making device according to claim 1, characterized in that: The linkage mechanism (15) comprises a rotating plate (1501) rotatably connected to the inner side of the frame (1); the top of the rotating plate (1501) is rotatably connected to a first connecting rod (1502); the top of the first connecting rod (1502) is rotatably connected to a first linkage plate (1503); the bottom of the rotating plate (1501) is rotatably connected to a second connecting rod (1504); the bottom of the second connecting rod (1504) is rotatably connected to a second linkage plate (1505).

7. The heat-sealing and heat-cutting bag-making device according to claim 6, characterized in that: The first linkage plate (1503) is fixedly connected to the outer side of the first slide plate (6), and the second linkage plate (1505) is fixedly connected to the outer side of the third slide plate (12).

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