Hot-melting edge-sealing shopping bag body production device

Abstract

The utility model relates to a hot melting edge sealing shopping bag body production device, which belongs to the technical field of shopping bag body production and comprises a rack, a conveying belt is arranged in the rack, one end of the top of the conveying belt is fixedly connected with a frame, a sliding block is slidably connected in the frame, and an adjusting roller is rotatably mounted on one side of the sliding block. The shopping bag edge sealing device has the advantages that when the shopping bag is conveyed to the position close to the frame, the sliding blocks, the adjusting rollers and the pressing plates can be controlled to move downwards through the lifting assembly, then edge sealing treatment can be conducted on a shopping bag body through the hot melting edge sealing plates, and when the hot melting edge sealing plates on one pressing plate are damaged, the hot melting edge sealing plates on the other pressing plate are not damaged. The whole adjusting roller can be driven to rotate through rotation of the output shaft of the second servo motor, the damaged hot melting edge sealing plate is rotated to one side, the intact hot melting edge sealing plate is placed in an area to be subjected to edge sealing, shutdown maintenance is not needed in the adjusting process, and the production efficiency of shopping bag bodies is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of shopping bag body production technology, and in particular to a shopping bag body production device with heat-sealed edges. Background Technology

[0002] Shopping bags are bags used for shopping. Common shopping bags on the market include plastic shopping bags, non-woven shopping bags, paper shopping bags, and cotton and linen shopping bags. Plastic shopping bags are made of resin as the main raw material and have a carrying function. They are often used for holding and carrying goods. Non-woven shopping bags are a green product. They are tough, durable, and aesthetically pleasing. They are suitable for reuse and advertising. Shopping bags need to be sealed during the production process.

[0003] A search revealed a Chinese patent for a hot-press sealing device for plastic bag production (authorization announcement number CN215970345U). The device includes a housing and a base, connected together. A processing table is located on the surface of the base. A limiting plate is located inside the housing. A motor is located at the top of the housing and connected to a main gear via an output shaft. A first gear and a second gear mesh on opposite sides of the main gear. A first lead screw is connected to the bottom of the first gear, and a second lead screw is connected to the bottom of the second gear. Movable plates are fitted onto the first and second gears. A drive rod is located on the lower surface of the movable plate, and a pressure plate is connected to the other end of the drive rod. A heating block is located on the other side of the pressure plate. This patented technology allows for simultaneous sealing of multiple sides of the plastic bag through a U-shaped heating block, improving work efficiency. The placement groove is the same size as the pressure plate, ensuring no positional deviation during sealing and eliminating the need for manual assistance, thus ensuring personnel safety.

[0004] However, the above-mentioned device still has some drawbacks in actual use. The most obvious one is that the hot sealing device for bag production only uses a single heating block to seal the bag. However, when the heating block and the pressure plate are damaged, the machine needs to be stopped for maintenance, which reduces the production efficiency of the bag. In addition, the pressure plate is a fixed structure and cannot be replaced with the corresponding heating block according to the size of the bag sealing edge, which makes it unsuitable. Utility Model Content

[0005] In view of the above-mentioned problems existing in the prior art, the main objective of this utility model is to provide a shopping bag body production device for hot-melt sealing.

[0006] The technical solution of this utility model is as follows: a shopping bag body production device for hot-melt sealing includes a frame, a conveyor belt is arranged inside the frame, a frame is fixedly connected to one end of the top of the conveyor belt, a slider is slidably connected inside the frame, an adjusting roller is rotatably installed on one side of the slider, pressure plates are equidistantly arranged on the outer side of the adjusting roller, and hot-melt sealing plates are fixedly installed on the outer side of each pressure plate. A second servo motor is fixedly installed on the side of the slider away from the adjusting roller, and the output shaft of the second servo motor passes through the slider and is fixedly connected to the rotation shaft of the adjusting roller.

[0007] In a preferred embodiment, a replacement assembly is provided on the outer side of the adjusting roller. The replacement assembly includes a fixed box that is equidistantly fixed to the outer side of the adjusting roller. A bidirectional lead screw is rotatably connected inside the fixed box. Both ends of the bidirectional lead screw are threadedly connected to snap-fit ​​components. A mating groove is provided on the side of the pressure plate near the adjusting roller.

[0008] In a preferred embodiment, the replacement component further includes snap-fit ​​grooves formed inside the pressure plate and located on both sides of the mating groove. Each snap-fit ​​component engages with the corresponding snap-fit ​​groove and is slidably connected to the inner wall of the fixed box.

[0009] In a preferred embodiment, two clamping components are equidistantly arranged at the top end of the conveyor belt. Each clamping component includes two brackets fixedly and equidistantly connected to the outside of the conveyor belt. A pressing member is arranged between the two brackets, and a torsion spring is arranged inside the pressing member. The pressing member is rotatably installed between the two brackets through the torsion spring.

[0010] In a preferred embodiment, a lifting assembly is provided at the top of the frame. The lifting assembly includes a cylinder fixedly installed at the top of the frame, and the piston rod of the cylinder extends into the interior of the frame and is fixedly connected to the slider.

[0011] In a preferred embodiment, each of the pressing members has a stop bar fixedly connected to the side away from the torsion spring. A servo motor is fixedly installed on the outer side of the frame. Two transmission rollers are rotatably installed inside the frame. The conveyor belt is connected between the two transmission rollers. The output shaft of the servo motor is fixedly connected to the central shaft of one of the transmission rollers.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, multiple shopping bags are conveyed by a conveyor belt. When the bags are near the frame, the slider, adjusting roller and pressure plate can be moved downward by the lifting component. The shopping bags can then be sealed using a hot-melt sealing plate. If the hot-melt sealing plate on one of the pressure plates is damaged, the output shaft of the second servo motor can be rotated to drive the entire adjusting roller to rotate and move the damaged hot-melt sealing plate to one side. The intact hot-melt sealing plate is then placed in the area to be sealed. No machine stoppage is required during the adjustment process, which greatly improves the production efficiency of the shopping bags.

[0014] 2. In this utility model, the rotation of the bidirectional lead screw can drive the two locking parts to move in opposite directions, thereby enabling the locking parts to disengage from the corresponding locking grooves. This allows the corresponding pressure plate and hot-melt sealing plate to be replaced according to the sealing size of the shopping bag body, thus improving the applicability of the device. Attached Figure Description

[0015] Figure 1 An overall perspective view of a shopping bag body production device for heat-sealing edge sealing provided by this utility model;

[0016] Figure 2 A side view of a shopping bag body production device for heat-sealing edge sealing provided by this utility model;

[0017] Figure 3 This utility model provides a schematic diagram of the replacement component structure of a shopping bag body production device for heat-sealing edge sealing;

[0018] Figure 4 This utility model provides a shopping bag body production device for heat-sealing edge sealing. Figure 1 Enlarged view of point A in the middle.

[0019] Legend: 1. Frame; 2. Conveyor belt; 3. Servo motor one; 4. Frame; 5. Servo motor two; 6. Cylinder; 7. Adjusting roller; 8. Pressure plate; 9. Hot melt sealing plate; 10. Fixing box; 11. Two-way lead screw; 12. Snap-fit ​​component; 13. Snap-fit ​​groove; 14. Bracket; 15. Torsion spring; 16. Pressing component; 17. Abutment rod. Detailed Implementation

[0020] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0021] Reference Figure 1-4A device for producing shopping bags with heat-sealed edges includes a frame 1, a conveyor belt 2 inside the frame 1, a frame 4 fixedly connected to one end of the top of the conveyor belt 2, a slider slidably connected inside the frame 4, an adjusting roller 7 rotatably mounted on one side of the slider, pressure plates 8 evenly spaced on the outer side of the adjusting roller 7, and heat-sealing plates 9 fixedly mounted on the outer side of each pressure plate 8. A servo motor 5 is fixedly mounted on the side of the slider away from the adjusting roller 7, the output shaft of the servo motor 5 passing through the slider and fixedly connected to the rotation shaft of the adjusting roller 7. Multiple shopping bags are produced via the conveyor belt 2. The bag body is conveyed, and when it is near the frame 4, the slider, adjusting roller 7 and pressure plate 8 can be controlled to move downward through the lifting component. Then, the hot melt sealing plate 9 can be used to seal the edge of the shopping bag body. When the hot melt sealing plate 9 on one of the pressure plates 8 is damaged, the output shaft of the servo motor 2 5 can be rotated to drive the entire adjusting roller 7 to rotate and rotate the damaged hot melt sealing plate 9 to one side, while the intact hot melt sealing plate 9 is placed in the area to be sealed. There is no need to stop the machine for maintenance during the adjustment process, which greatly improves the production efficiency of shopping bag bodies.

[0022] Reference Figure 3 A replacement assembly is provided on the outer side of the adjusting roller 7. The replacement assembly includes a fixed box 10 that is equidistantly fixed to the outer side of the adjusting roller 7. A bidirectional lead screw 11 is rotatably connected inside the fixed box 10. Both ends of the bidirectional lead screw 11 are threadedly connected to a snap-fit ​​piece 12. A mating groove is opened on the side of the pressure plate 8 near the adjusting roller 7. By rotating the bidirectional lead screw 11, the two snap-fit ​​pieces 12 can be driven to move in opposite directions, thereby allowing the snap-fit ​​pieces 12 to disengage from the corresponding snap-fit ​​groove 13. This allows the pressure plate 8 and the hot-melt sealing plate 9 to be replaced according to the sealing edge size of the shopping bag body, thereby improving the applicability of the device.

[0023] Reference Figure 3 The replacement components also include snap-fit ​​grooves 13 located inside the pressure plate 8 and on both sides of the mating groove. All snap-fit ​​pieces 12 engage with the corresponding snap-fit ​​grooves 13 and are slidably connected to the inner wall of the fixed box 10. The sliding connection method can prevent the snap-fit ​​pieces 12 from rotating during movement, thus ensuring the normal operation of the snap-fit ​​pieces 12.

[0024] Reference Figure 4Two clamping components are equidistantly arranged at the top of the conveyor belt 2. The clamping components include two brackets 14 fixedly connected to the outside of the conveyor belt 2 at equal intervals. A pressing member 16 is arranged between the two brackets 14. A torsion spring 15 is arranged inside the pressing member 16. The pressing member 16 is rotatably installed between the two brackets 14 through the torsion spring 15. Through the action of the torsion spring 15, the pressing member 16 can be driven to rotate, so that the pressing member 16 is always in contact with the shopping bag body. This can fix the shopping bag body to be sealed and prevent positional displacement during the sealing process, thereby improving the sealing accuracy.

[0025] Reference Figure 2 The top of the frame 4 is equipped with a lifting assembly, which includes a cylinder 6 fixedly installed on the top of the frame 4. The piston rod of the cylinder 6 extends into the interior of the frame 4 and is fixedly connected to the slider. By extending and retracting the piston rod of the cylinder 6, the position of the hot melt sealing plate 9 and the pressure plate 8 can be adjusted, thereby achieving the purpose of sealing the edge of the shopping bag.

[0026] Reference Figure 1 Each pressing member 16 has a contact rod 17 fixedly connected to the side away from the torsion spring 15. A servo motor 3 is fixedly installed on the outside of the frame 1. Two transmission rollers are rotatably installed inside the frame 1. The conveyor belt 2 is connected between the two transmission rollers. The output shaft of the servo motor 3 is fixedly connected to the central shaft of one of the transmission rollers. The rotation of the output shaft of the servo motor 3 can drive the rotation of the transmission roller, thereby driving the conveyor belt 2 to rotate, thus realizing the transmission of power.

[0027] Working principle: First, the torsion spring 15 drives the pressing part 16 to rotate, so that the pressing part 16 is always in contact with the shopping bag body, thereby fixing the shopping bag body to be sealed and preventing positional displacement during the sealing process, thus improving the sealing accuracy. After the shopping bag body is fixed, the servo motor 3 can be started by controlling the external control device, which drives the transmission roller to rotate, thus driving the conveyor belt 2 to rotate. The conveyor belt 2 transports multiple shopping bags. When the bags are transported to the vicinity of the frame 4;

[0028] The controllable cylinder 6 is activated to control the slider, adjusting roller 7 and pressure plate 8 to move downwards, thereby enabling the hot melt sealing plate 9 to seal the edge of the shopping bag. When the hot melt sealing plate 9 on one of the pressure plates 8 is damaged, the output shaft of the servo motor 2 5 can be rotated to drive the entire adjusting roller 7 to rotate, and the damaged hot melt sealing plate 9 can be rotated to one side, while the intact hot melt sealing plate 9 can be placed in the area to be sealed. No machine stoppage is required for maintenance during the adjustment process.

[0029] The rotation of the bidirectional lead screw 11 can drive the two snap-fit ​​pieces 12 to move in opposite directions, thereby allowing the snap-fit ​​pieces 12 to disengage from the corresponding snap-fit ​​grooves 13. This allows the corresponding pressure plate 8 and hot-melt sealing plate 9 to be replaced according to the sealing size of the shopping bag body.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A shopping bag body production apparatus for heat-sealing edge sealing, comprising a frame (1), characterized in that: The frame (1) is equipped with a conveyor belt (2) inside. A frame (4) is fixedly connected to one end of the top of the conveyor belt (2). A slider is slidably connected inside the frame (4). An adjusting roller (7) is rotatably installed on one side of the slider. Pressure plates (8) are equidistantly arranged on the outer side of the adjusting roller (7). Hot melt sealing plates (9) are fixedly installed on the outer side of the pressure plates (8). A servo motor (5) is fixedly installed on the side of the slider away from the adjusting roller (7). The output shaft of the servo motor (5) passes through the slider and is fixedly connected to the rotation shaft of the adjusting roller (7).

2. The shopping bag body production device for heat-sealing edge sealing according to claim 1, characterized in that: A replacement assembly is provided on the outside of the adjusting roller (7). The replacement assembly includes a fixed box (10) that is fixedly connected to the outside of the adjusting roller (7) at equal intervals. A bidirectional lead screw (11) is rotatably connected inside the fixed box (10). Both ends of the bidirectional lead screw (11) are threadedly connected to a snap-fit ​​piece (12). A mating groove is provided on the side of the pressure plate (8) near the adjusting roller (7).

3. The shopping bag body production device for heat-sealing edge sealing according to claim 2, characterized in that: The replacement component also includes snap-fit ​​grooves (13) opened inside the pressure plate (8) and located on both sides of the mating groove. Each snap-fit ​​piece (12) engages with the corresponding snap-fit ​​groove (13) and is slidably connected to the inner wall of the fixed box (10).

4. The shopping bag body production device for heat-sealing edge sealing according to claim 1, characterized in that: Two clamping components are equidistantly arranged at the top end of the conveyor belt (2). The clamping components include two brackets (14) fixedly and equidistantly connected to the outside of the conveyor belt (2). A pressing member (16) is arranged between the two brackets (14). A torsion spring (15) is arranged inside the pressing member (16). The pressing member (16) is rotatably installed between the two brackets (14) through the torsion spring (15).

5. The shopping bag body production device for heat-sealing edge sealing according to claim 1, characterized in that: The top of the frame (4) is provided with a lifting assembly, which includes a cylinder (6) fixedly installed on the top of the frame (4). The piston rod of the cylinder (6) extends into the interior of the frame (4) and is fixedly connected to the slider.

6. The shopping bag body production device for heat-sealing edge sealing according to claim 4, characterized in that: The pressing member (16) is fixedly connected to the side away from the torsion spring (15) with a contact rod (17). A servo motor (3) is fixedly installed on the outside of the frame (1). Two transmission rollers are rotatably installed inside the frame (1). The conveyor belt (2) is connected between the two transmission rollers. The output shaft of the servo motor (3) is fixedly connected to the central shaft of one of the transmission rollers.

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