Plastic bag fillet forming and sealing tool

Abstract

The utility model discloses a plastic bag round corner forming and sealing tool which comprises a workbench and supports, a baffle is installed in the middle of the rear end of the upper portion of the workbench, the supports are installed on the left side and the right side of the rear end of the upper portion of the workbench, sliding rod sets are installed in the supports, sliding blocks are installed on the peripheries of the sliding rod sets, and the sliding blocks are installed on the left side and the right side of the rear end of the upper portion of the workbench. And the upper portion of the sliding block is in threaded connection with a fastening rotary knob, a telescopic rod is mounted below the sliding block, and a mounting shell is mounted below the telescopic rod. Compared with an existing forming and sealing tool, the plastic bag fillet forming and sealing tool has the advantages that a pressing plate is rotated through a connecting shaft to press a plastic bag, an embedded block is rotated and pulled up to be embedded into the right side of the pressing plate, the position of a sliding block on a sliding rod set is adjusted according to the fillet machining position, a telescopic rod extends to press a mounting shell downwards, and the pressing block is firstly pressed on the plastic bag; the spring rod contracts to apply proper pressure to the pressing block, then the fillet sealer is pressed on the plastic bag to conduct fillet machining, and the damping rod applies proper pressure to the fillet sealer.

Description

Technical Field

[0001] This utility model relates to the field of plastic bag processing technology, specifically a plastic bag rounded corner forming and sealing tool. Background Technology

[0002] Plastic bags are bags made primarily of plastic (common plastics include polypropylene, polyester, and nylon). They are essential items in people's daily lives and are often used to store other items. They are widely used due to their low price, light weight, large capacity, and ease of storage. However, some countries have banned their production and use because of their extremely long degradation cycle and difficulty in disposal. Typical plastic bags have a flat bottom structure, which makes it easy for various residues or other liquid stains to accumulate in the bottom corners during use, causing inconvenience to users. In addition, the general sealing mechanism is a flat bottom seal, requiring a plastic bag rounded corner forming and sealing tool.

[0003] The existing patent, CN211994439U, entitled "A Rounded Corner Forming and Sealing Mechanism for Plastic Bags," relates to the field of plastic bag technology and discloses a rounded corner forming and sealing mechanism for plastic bags. It includes a base plate with a cutting groove on its top and hydraulic push rods fixedly connected to both sides. This mechanism uses hydraulic push rods to move a lifting plate downwards along a guide column, causing a sealing heating head to press the plastic bag. A cutting blade is inserted into the cutting groove, and a drive motor rotates a corresponding winding wheel. The winding wheel, in turn, pulls a traction rope to move a universal wheel, causing a sliding rod to move to the right along a guide hole. The sliding rod then moves in an arc along the guide hole, causing the sealing heating head to move in an arc, rounding the corners of the plastic bag. The cutting blade then simultaneously cuts the plastic bag, integrating sealing and cutting for high efficiency. Based on this principle, reciprocating operations can quantitatively seal plastic bags. This sealing mechanism features rounded corner sealing, a simple structure, and excellent sealing efficiency.

[0004] The aforementioned device uses a hydraulic push rod to move the lifting plate downwards along the guide column, causing the sealing heating head to press the plastic bag tightly. However, the plastic bag is lightweight and easily affected by external factors. Before the rounding process, it is simply placed on the platform and will move when affected by external factors such as airflow. It lacks fixation and cannot well meet people's usage needs. In view of the above situation, technical innovation is carried out on the basis of the existing forming and sealing tooling. Utility Model Content

[0005] The purpose of this utility model is to provide a plastic bag rounded corner forming and sealing tool to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic bag rounded corner forming and sealing fixture, comprising a workbench and a support, characterized in that a baffle is installed at the middle of the upper rear end of the workbench, the support is installed on the left and right sides of the upper rear end of the workbench, and a sliding rod assembly is installed inside the support, a slider is installed around the sliding rod assembly, and a fastening knob is threadedly connected to the upper part of the slider, a telescopic rod is installed below the slider, and a mounting shell is installed below the telescopic rod.

[0007] Furthermore, a fixing component is installed inside the mounting shell, and the fixing component is welded to the mounting shell.

[0008] Furthermore, the fixing component includes a spring rod and a pressure block, with the pressure block installed below the spring rod. The pressure block first presses onto the plastic bag, and the spring rod retracts to apply appropriate pressure to the pressure block.

[0009] Furthermore, a rounded corner sealer is provided on the inner side of the pressure block, and a damping rod is installed above the rounded corner sealer. The rounded corner sealer presses onto the plastic bag to perform rounded corner processing, and the damping rod applies appropriate pressure to the rounded corner sealer.

[0010] Furthermore, a pressure plate is installed above the workbench, and a connecting shaft is rotatably connected to the left side of the pressure plate. The pressure plate is rotated by the connecting shaft to press down the plastic bag.

[0011] Furthermore, an insert is installed on the right side of the pressure plate, and the insert is embedded in the pressure plate.

[0012] Furthermore, a rotating block is installed on the lower periphery of the insert, and the rotating block is threadedly connected to the insert. The insert rotates through the rotating block, making it easy to insert the insert onto the pressure plate.

[0013] Furthermore, a lightweight spring is installed below the rotating block, and the lightweight spring is embedded in the rotating block. The lightweight spring pushes the embedded block downward, applying a certain appropriate pressure to the pressure plate to ensure the fixing effect while ensuring that the plastic bag is not crushed.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the plastic bag is pressed down by rotating the pressure plate through the connecting shaft, the insert is rotated and pulled up and embedded into the right side of the pressure plate, the light spring pushes the insert down, and applies a certain appropriate pressure to the pressure plate to ensure the fixing effect while ensuring that the plastic bag is not crushed. The position of the slider on the slide rod group is adjusted according to the rounded corner processing position. The fastening knob is rotated to abut against the slide rod group to fix the slider position. The telescopic rod extends to press down the mounting shell. The pressure block presses down on the plastic bag first. The spring rod retracts to apply appropriate pressure to the pressure block. Then the rounded corner sealer presses down on the plastic bag to perform rounded corner processing. The damping rod applies appropriate pressure to the rounded corner sealer.

[0015] 1. This utility model adjusts the position of the slider on the slide bar assembly according to the rounded corner processing position. Rotating the fastening knob to abut against the slide bar assembly fixes the slider position. The telescopic rod extends and presses down the mounting shell. The pressure block first presses onto the plastic bag. The spring rod retracts to apply appropriate pressure to the pressure block. Subsequently, the rounded corner sealer presses onto the plastic bag for rounded corner processing. The damping rod applies appropriate pressure to the rounded corner sealer, ensuring the local fixation effect of the plastic bag and ensuring that the plastic bag is not crushed, resulting in better processing effect.

[0016] 2. In this utility model, the plastic bag is placed flat on the workbench with the side that needs to be rounded against the baffle. The pressure plate is rotated by the connecting shaft to press the plastic bag down. The insert is rotated and pulled up to embed into the right side of the pressure plate. A light spring pushes the insert down to apply a certain appropriate pressure to the pressure plate to ensure the fixing effect while ensuring that the plastic bag is not crushed. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a plastic bag rounded corner forming and sealing tool according to the present invention;

[0018] Figure 2 This is a partial three-dimensional cross-sectional view of the mounting shell of a plastic bag rounded corner forming and sealing tool according to the present invention.

[0019] Figure 3 This is a partial three-dimensional structural diagram of the insert of a plastic bag rounded corner forming and sealing tool according to the present invention.

[0020] In the diagram: 1. Workbench; 2. Baffle; 3. Pressure plate; 4. Connecting shaft; 5. Bracket; 6. Slide rod assembly; 7. Slider; 8. Fastening knob; 9. Telescopic rod; 10. Mounting housing; 11. Fixing assembly; 1101. Spring rod; 1102. Pressure block; 12. Damping rod; 13. Rounded corner sealer; 14. Insert; 15. Rotating block; 16. Light spring. Detailed Implementation

[0021] like Figure 1 and Figure 2As shown, a plastic bag rounded corner forming and sealing fixture includes a workbench 1 and a support 5. A baffle 2 is installed at the middle of the upper rear end of the workbench 1. The support 5 is installed on the left and right sides of the upper rear end of the workbench 1, and a sliding rod assembly 6 is installed inside the support 5. A slider 7 is installed around the sliding rod assembly 6, and a fastening knob 8 is threadedly connected to the upper part of the slider 7. A telescopic rod 9 is installed below the slider 7, and a mounting shell 10 is installed below the telescopic rod 9. A fixing component 11 is installed inside the mounting shell 10, and the fixing component 11 is welded to the mounting shell 10. The fixing component 11 includes a spring rod 1101 and a pressure block 1102, and the lower part of the spring rod 1101... A pressure block 1102 is installed on the plastic bag. A rounded corner sealer 13 is provided on the inner side of the pressure block 1102, and a damping rod 12 is installed above the rounded corner sealer 13. The position of the slider 7 on the slide rod assembly 6 is adjusted according to the rounded corner processing position. The fastening knob 8 is rotated to press against the slide rod assembly 6 to fix the position of the slider 7. The telescopic rod 9 extends to press down the mounting shell 10. The pressure block 1102 presses down on the plastic bag first. The spring rod 1101 retracts to apply appropriate pressure to the pressure block 1102. Then the rounded corner sealer 13 presses down on the plastic bag to perform rounded corner processing. The damping rod 12 applies appropriate pressure to the rounded corner sealer 13 to ensure the local fixation effect of the plastic bag and to ensure that the plastic bag is not crushed, resulting in a better processing effect.

[0022] like Figure 1 and Figure 3 As shown, a pressure plate 3 is installed above the workbench 1, and a connecting shaft 4 is rotatably connected to the left side of the pressure plate 3. An insert 14 is installed on the right side of the pressure plate 3, and the insert 14 is embedded in the pressure plate 3. A rotating block 15 is installed on the lower periphery of the insert 14, and the rotating block 15 is threaded in the insert 14. A light spring 16 is installed below the rotating block 15, and the light spring 16 is embedded in the rotating block 15. The plastic bag is placed flat on the workbench 1, with the side that needs to be rounded pressed against the baffle 2. The pressure plate 3 is rotated by the connecting shaft 4 to press the plastic bag down. The insert 14 is rotated and pulled up to embed into the right side of the pressure plate 3. The light spring 16 pushes the insert 14 down to apply a certain appropriate pressure to the pressure plate 3 to ensure the fixing effect while ensuring that the plastic bag is not crushed.

[0023] Working principle: When using this plastic bag rounding corner forming and sealing fixture, firstly, place the plastic bag flat on the workbench 1 with the side to be rounded against the baffle 2. Rotate the pressure plate 3 via the connecting shaft 4 to press the plastic bag down. Rotate and pull up the insert 14 to embed it into the right side of the pressure plate 3. The light spring 16 pushes the insert 14 down, applying appropriate pressure to the pressure plate 3 to ensure a fixing effect while preventing the plastic bag from being crushed. Adjust the position of the slider 7 on the slide rod group 6 according to the rounding corner processing position. Rotate the fastening knob 8 to press against the slide rod group 6 to fix the position of the slider 7. The telescopic rod 9 extends to press down the mounting shell 10. The pressure block 1102 presses down on the plastic bag first. The spring rod 1101 retracts to apply appropriate pressure to the pressure block 1102. Then, the rounding corner sealer 13 presses down on the plastic bag for rounding corner processing. The damping rod 12 applies appropriate pressure to the rounding corner sealer 13 to ensure the local fixing effect of the plastic bag and prevent the plastic bag from being crushed, resulting in better processing effect.

Claims

1. A plastic bag rounded corner forming and sealing fixture, comprising a workbench (1) and a support (5), characterized in that, A baffle (2) is installed at the middle of the upper rear end of the workbench (1). The bracket (5) is installed on the left and right sides of the upper rear end of the workbench (1). A slide rod assembly (6) is installed inside the bracket (5). A slider (7) is installed on the periphery of the slide rod assembly (6). A fastening knob (8) is threadedly connected to the upper part of the slider (7). A telescopic rod (9) is installed below the slider (7). A mounting shell (10) is installed below the telescopic rod (9).

2. The plastic bag rounded corner forming and sealing fixture according to claim 1, characterized in that, The mounting shell (10) is equipped with a fixing component (11), and the fixing component (11) is welded to the mounting shell (10).

3. The plastic bag rounded corner forming and sealing fixture according to claim 2, characterized in that, The fixing component (11) includes a spring rod (1101) and a pressure block (1102), and the pressure block (1102) is installed below the spring rod (1101).

4. The plastic bag rounded corner forming and sealing fixture according to claim 3, characterized in that, The inner side of the pressure block (1102) is provided with a rounded corner sealer (13), and a damping rod (12) is installed above the rounded corner sealer (13).

5. The plastic bag rounded corner forming and sealing fixture according to claim 1, characterized in that, A pressure plate (3) is installed above the workbench (1), and a connecting shaft (4) is rotatably connected to the left side of the pressure plate (3).

6. The plastic bag rounded corner forming and sealing fixture according to claim 5, characterized in that, An insert (14) is installed on the right side of the pressure plate (3), and the insert (14) and the pressure plate (3) are connected by an insert.

7. The plastic bag rounded corner forming and sealing fixture according to claim 6, characterized in that, A rotating block (15) is installed on the lower periphery of the insert (14), and the rotating block (15) and the insert (14) are threaded together.

8. The plastic bag rounded corner forming and sealing fixture according to claim 7, characterized in that, A lightweight spring (16) is installed below the rotating block (15), and the lightweight spring (16) and the rotating block (15) are connected by an embedded connection.

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