A plastic bag closure device

Abstract

The utility model relates to a sealing device technical field especially relates to a plastic bag sealing device, include: sealing device, fixed block fixed connection in one side of sealing device, the top end one side of conveying belt is provided with gyro wheel, the both ends of gyro wheel are provided with the clamping plate, the clamping plate is hinged in one side top end of connecting frame, one side fixed connection of connecting frame has the installation box, the inside bottom end one side fixed connection of installation box has the first spring, the top end of first spring is connected with Z type board, one side bottom end of Z type board is connected with vertical shaft, the bottom fixed connection of vertical shaft has the second spring, the second spring bottom end fixed connection is in the inside bottom end other side of installation box, the other side top end of Z type board is provided with L type extrusion block, one side hinged connection of Z type board has the locating shaft, the top fixed connection of locating shaft has the triangular plate, one side fixed connection of triangular plate is in one side of clamping plate.

Description

Technical Field

[0001] This utility model relates to the field of sealing device technology, and in particular to a sealing device for plastic bags. Background Technology

[0002] Plastic bag sealing devices use heat sealing, vibration, or pressure to seal the edges of plastic bags, preventing liquids, powders, and other contents from leaking out. For example, a poorly sealed soy sauce bag can leak. Heat sealing devices heat the PE film to melt and bond it, forming a sealed boundary that isolates external dust, moisture, and microorganisms, keeping the contents clean. For pharmaceutical packaging, ultrasonic sealing is used to achieve aseptic sealing, preventing the medicine from getting damp or contaminated by bacteria.

[0003] In existing plastic bag sealing devices, during the sealing process, plastic bags are prone to wrinkles. These wrinkles prevent the sealing edges of the plastic bag from fitting smoothly against the heat-sealing mold, resulting in incomplete melting in some areas. Therefore, a plastic bag sealing device is provided. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides the following technical solution: a plastic bag sealing device, comprising: a sealing device, a conveyor belt at the top of the base of the sealing device, a motor on one side of the base of the sealing device, a threaded rod connected to the output end of the motor, a fixing block passing through the threaded rod, the fixing block being fixedly connected to one side of the sealing device, a roller on one side of the top of the conveyor belt, locking plates at both ends of the roller, the locking plates being locked to one side of the top of a connecting frame, an installation box fixedly connected to one side of the connecting frame, a first spring fixedly connected to one side of the bottom of the installation box, a Z-shaped plate connected to the top of the first spring, a vertical shaft connected to one side of the bottom of the Z-shaped plate, a second spring fixedly connected to the bottom of the vertical shaft, the bottom of the second spring fixedly connected to the other side of the bottom of the installation box, an L-shaped extrusion block at the top of the other side of the Z-shaped plate, a positioning shaft locked to one side of the Z-shaped plate, a triangular plate fixedly connected to the top of the positioning shaft, and one side of the triangular plate fixedly connected to one side of the locking plate.

[0005] As an improvement to the above technical solution, connecting frames are provided at both ends of the conveyor belt, and one end of the connecting frame is fixedly connected to the top of the base of the sealing device.

[0006] As an improvement to the above technical solution, the bottom end of the motor is connected to a shock-absorbing bracket, and the bottom end of the shock-absorbing bracket is fixedly connected to one side of the base of the sealing device.

[0007] As an improvement to the above technical solution, a positioning block is fixedly connected to one side of the top of the bracket of the sealing device, and a limiting round block is fixedly connected to the bottom of the positioning block. The threaded rod is rotatably connected inside the limiting round block.

[0008] As an improvement to the above technical solution, the sealing device is fixedly connected to all four sides of its bottom end with casters, and dampers are provided at both ends of the first spring and the second spring.

[0009] As an improvement to the above technical solution, a placement plate is fixedly connected to one side of the support of the sealing device.

[0010] The beneficial effects of this utility model are as follows: When the conveyor belt carries the plastic bag past the bottom of the roller, the rotation of the roller can smooth out the wrinkles on the surface of the plastic bag, preventing wrinkles from appearing during the sealing process. This would prevent the edges of the sealed plastic bag from not being able to fit smoothly against the heat-sealing mold. When the roller needs to be disassembled, pressing the L-shaped extrusion block allows the Z-shaped plate to swing under the action of the first spring. The positioning shaft can connect the triangular plate and the Z-shaped plate together. The swing of the Z-shaped plate facilitates the lifting and lowering of the triangular plate. The lifting and lowering of the triangular plate can synchronously drive the roller to lift and lower, thereby completing the disassembly of the roller. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the installation of the roller, locking plate, triangular plate and mounting box structure of this utility model; Figure 4 This is a schematic diagram of the installation of the triangular plate, mounting box, vertical shaft, positioning shaft and L-shaped extrusion block structure of this utility model.

[0013] Reference numerals: 1. Sealing device; 2. Caster wheel; 3. Shock-absorbing bracket; 4. Motor; 5. Threaded rod; 6. Conveyor belt; 7. Fixing block; 8. Limiting round block; 9. Positioning block; 10. Placement plate; 11. Roller; 12. Clamping plate; 13. Triangular plate; 14. Mounting box; 15. Vertical shaft; 16. Positioning shaft; 17. L-shaped extrusion block; 18. Z-shaped plate; 19. First spring; 20. Second spring; 21. Connecting frame. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0015] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0016] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0017] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0018] See appendix Figures 1-4 As shown, to solve the above problems, a plastic bag sealing device is provided, comprising: a sealing device 1, a conveyor belt 6 disposed at the top of the base of the sealing device 1, a motor 4 disposed on one side of the base of the sealing device 1, a threaded rod 5 connected to the output end of the motor 4, a fixing block 7 passing through the threaded rod 5, the fixing block 7 being fixedly connected to one side of the sealing device 1, a roller 11 disposed on one side of the top of the conveyor belt 6, a locking plate 12 disposed at both ends of the roller 11, the locking plate 12 being locked to one side of the top of the connecting frame 21, and an installation box 14 being fixedly connected to one side of the connecting frame 21. A first spring 19 is fixedly connected to one side of the bottom of the mounting box 14. A Z-shaped plate 18 is connected to the top of the first spring 19. A vertical shaft 15 is connected to the bottom of one side of the Z-shaped plate 18. A second spring 20 is fixedly connected to the bottom of the vertical shaft 15. The bottom of the second spring 20 is fixedly connected to the other side of the bottom of the mounting box 14. An L-shaped pressing block 17 is provided at the top of the other side of the Z-shaped plate 18. A positioning shaft 16 is engaged with one side of the Z-shaped plate 18. A triangular plate 13 is fixedly connected to the top of the positioning shaft 16. One side of the triangular plate 13 is fixedly connected to one side of the engaging plate 12.

[0019] The plastic bag can be transported to the designated position by using the conveyor belt 6 (with a power supply device on one side of the conveyor belt 6). The motor 4 can drive the threaded rod 5 to rotate. The sealing device 1 and the threaded rod 5 can be connected together by the fixing block 7, so that the sealing device 1 can be lifted and lowered during the rotation of the threaded rod 5 to seal the plastic bag. When the conveyor belt 6 carries the plastic bag past the bottom of the roller 11, the rotation of the roller 11 can smooth out the wrinkles on the surface of the plastic bag, so as to avoid wrinkles in the plastic bag during the sealing process, which would prevent the edge of the plastic bag from being flat and not sticking to the heat sealing mold after sealing. When the roller 11 needs to be disassembled, the Z-shaped plate 18 can be swung by pressing the L-shaped extrusion block 17 under the action of the first spring 19. The positioning shaft 16 can be used to connect the triangular plate 13 and the Z-shaped plate 18 together. The swing of the Z-shaped plate 18 can drive the triangular plate 13 to be lifted and lowered. The lifting and lowering of the triangular plate 13 can drive the roller 11 to be lifted and lowered simultaneously, thereby completing the disassembly of the roller 11.

[0020] For specific implementation details, please refer to [link / reference]. Figures 1-4 Specifically, the conveyor belt 6 is provided with connecting frames 21 at both ends, and one end of the connecting frame 21 is fixedly connected to the top of the base of the sealing device 1.

[0021] The two ends of the connecting frame 21 are respectively fixed to the driving roller and the driven roller of the conveyor belt 6 to form a suspended conveying plane, so as to avoid the conveyor belt 6 from getting stuck due to gravity.

[0022] For specific implementation details, please refer to [link / reference]. Figures 1-4 Specifically, the bottom end of the motor 4 is connected to a shock-absorbing bracket 3, and the bottom end of the shock-absorbing bracket 3 is fixedly connected to one side of the base of the sealing device 1.

[0023] By setting up the shock-absorbing bracket 3, the vibration effect of the motor 4 during operation can be reduced, and the subsequent sealing operation can be avoided due to the high automatic efficiency of the motor 4 during operation.

[0024] For specific implementation details, please refer to [link / reference]. Figures 1-4 Specifically, a positioning block 9 is fixedly connected to one side of the top of the support of the sealing device 1, and a limiting block 8 is fixedly connected to the bottom of the positioning block 9. The threaded rod 5 is rotatably connected inside the limiting block 8.

[0025] By using the positioning block 9, the position of the limiting block 8 can be provided, so that the limiting block 8 and the threaded rod 5 are symmetrical to each other. Then, under the action of the threaded rod 5, the threaded rod 5 can be prevented from moving during rotation, which would affect the subsequent use effect.

[0026] For specific implementation details, please refer to [link / reference]. Figures 1-4Specifically, universal wheels 2 are fixedly connected to the bottom of the sealing device 1, and dampers are provided at both ends of the first spring 19 and the second spring 20.

[0027] The entire equipment can be moved by using casters 2, and residual vibration can be quickly dissipated by using dampers.

[0028] For specific implementation details, please refer to [link / reference]. Figures 1-4 Specifically, a placement plate 10 is fixedly connected to one side of the support of the sealing device 1.

[0029] By using the placement plate 10, a stable placement position can be provided for the plastic bag, which facilitates the sealing operation of the plastic bag.

[0030] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A plastic bag sealing device, characterized in that, include: A sealing device (1) is provided with a conveyor belt (6) at the top of its base. A motor (4) is provided on one side of the base of the sealing device (1). A threaded rod (5) is connected to the output end of the motor (4). A fixing block (7) is connected through the threaded rod (5). The fixing block (7) is fixedly connected to one side of the sealing device (1). A roller (11) is provided on one side of the top of the conveyor belt (6). A locking plate (12) is provided at both ends of the roller (11). The locking plate (12) is locked to the top of one side of the connecting frame (21). An installation box (14) is fixedly connected to one side of the connecting frame (21). The interior of the installation box (14) is... A first spring (19) is fixedly connected to one side of the bottom end. A Z-shaped plate (18) is connected to the top of the first spring (19). A vertical shaft (15) is connected to the bottom of one side of the Z-shaped plate (18). A second spring (20) is fixedly connected to the bottom of the vertical shaft (15). The bottom of the second spring (20) is fixedly connected to the other side of the bottom of the mounting box (14). An L-shaped pressing block (17) is provided at the top of the other side of the Z-shaped plate (18). A positioning shaft (16) is engaged with one side of the Z-shaped plate (18). A triangular plate (13) is fixedly connected to the top of the positioning shaft (16). One side of the triangular plate (13) is fixedly connected to one side of the engaging plate (12).

2. The plastic bag sealing device according to claim 1, characterized in that: The conveyor belt (6) is provided with connecting frames (21) at both ends, and one end of the connecting frame (21) is fixedly connected to the top of the base of the sealing device (1).

3. The plastic bag sealing device according to claim 1, characterized in that: The bottom end of the motor (4) is connected to a shock-absorbing bracket (3), and the bottom end of the shock-absorbing bracket (3) is fixedly connected to one side of the base of the sealing device (1).

4. The plastic bag sealing device according to claim 3, characterized in that: A positioning block (9) is fixedly connected to one side of the top of the bracket of the sealing device (1), and a limiting block (8) is fixedly connected to the bottom of the positioning block (9). The threaded rod (5) is rotatably connected inside the limiting block (8).

5. The plastic bag sealing device according to claim 4, characterized in that: The sealing device (1) is fixedly connected to casters (2) around its bottom, and dampers are provided at both ends of the first spring (19) and the second spring (20).

6. The plastic bag sealing device according to claim 1, characterized in that: The sealing device (1) has a placement plate (10) fixedly connected to one side of the support.

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