Edge sealing and ironing equipment for plastic bag production
By introducing support and limiting mechanisms into the plastic bag production equipment, the pressure problem of ironing plastic bags of different thicknesses is solved, ensuring the ironing effect and positional stability, and achieving effective fixing and ironing of the plastic bag sealing edges.
Patent Information
- Application Number
- CN202422437000.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-10-09
AI Technical Summary
Existing plastic bag sealing and ironing equipment may not be able to maintain effective relative pressure when dealing with plastic bags of different thicknesses, resulting in poor ironing effect. Furthermore, the plastic bags are prone to moving during the ironing process, affecting the normal operation.
An edge-sealing ironing device was designed, which includes components such as support columns, receiving plates, limiting columns, connecting frames, connecting rods, and lower pressure plates. By adjusting the cooperation of the piston and shaftless cylinder, pressure is ensured between the ironing structure and the plastic bag, and the position of the plastic bag is fixed by the limiting mechanism to prevent it from moving.
It achieves stable relative pressure during ironing, preventing the plastic bag from shifting and ensuring the stability and consistency of the ironing effect.
Smart Images
Figure CN223533112U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic bag production technology, specifically to a sealing and ironing device for plastic bag production. Background Technology
[0002] Plastic woven bags are classified by their main material composition as polypropylene bags and polyethylene bags; and by their sewing method as sewn-bottom bags and sewn-side-bottom bags. They are currently widely used as packaging materials for fertilizers, chemical products, and other items. The main production process involves extruding plastic raw materials into film, cutting, and unidirectionally stretching them into flat filaments, which are then woven together to produce the product, commonly known as a woven bag.
[0003] The existing Chinese utility model patent with publication number CN218342960U discloses a high-efficiency surface ironing device for processing plastic woven bags. It includes a worktable with a placement groove on its top. A first rotating column is disposed inside the placement groove. A support frame is mounted on the top of the worktable, and a second rotating column is disposed on the support frame. Heating plates are fitted onto the outer surfaces of both the first and second rotating columns. Support plates are disposed at both the front and rear ends of the top of the worktable. A transmission mechanism is disposed inside the support plates. The transmission mechanism includes a motor, a rotating shaft, and a rotating drum fixedly mounted on the rotating shaft. A steel wire rope is disposed between the two rotating drums. A movable plate is fixedly mounted on the steel wire rope. A fixing groove is formed on one side of the movable plate, and a fixing plate is disposed inside the fixing groove. This utility model achieves good ironing effect by fixing plastic woven bags and can be adjusted according to different thicknesses of plastic woven bags, thus expanding its applicability.
[0004] Because of the varying thickness of plastic bag seals, existing plastic bag sealing ironing equipment may not be able to maintain sufficient relative pressure between the ironing structure and the plastic bag seal during ironing, affecting the ironing effect. Additionally, the plastic bag may shift during ironing, causing the seal to change its relative position with the ironing structure and disrupting the ironing process. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a sealing ironing device for plastic bag production, which has the advantages of enabling a certain relative pressure between the bottom surface of the ironing structure and the plastic bag, and limiting the relative position between the plastic bag and the ironing structure, thus solving the aforementioned technical problems.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a sealing and ironing device for plastic bag production, comprising: a base plate, a support column fixedly installed above the base plate, a receiving plate fixedly installed above the support column, a limiting column fixedly installed above the base plate, a connecting frame inserted above the limiting column, a connecting rod fixedly installed above the connecting frame, a limiting plate fixedly installed at the upper end of the connecting rod, a support spring inserted through the outer side of the connecting rod, a lower pressure plate inserted through the outer side of the connecting rod, and an adjusting piston fixedly installed above the base plate. A connecting block is fixedly installed at one end, and an adapter block is fixedly installed below the connecting block. A shaftless cylinder is fixedly installed on the rear side of the connecting block. A connecting plate is fixedly installed at the upper end of the shaftless cylinder slider. A connecting column is fixedly installed below the connecting plate. A compression spring is inserted through the outside of the connecting column. A limit frame is inserted through the outside of the connecting column. A guide wheel is movably installed inside the limit frame. A protective shell is fixedly installed at the lower end of the connecting column. An electric heating plate is fixedly installed inside the protective shell. A heat-conducting plate is fixedly installed below the electric heating plate. The limit plate can restrict the position of the upper end of the supporting spring.
[0009] As a preferred embodiment of this utility model, the support columns are symmetrically installed at the four corners of the bottom surface of the support plate with the center of the support plate as the reference, and the support plate is fixedly connected to the bottom plate through the support columns; the support columns can restrict the position of the support plate.
[0010] As a preferred embodiment of this utility model, the limiting posts are symmetrically installed on the front and back sides of the connecting frame with the center of the connecting frame as the reference. The upper end of the limiting posts is in contact with the bottom surface of the receiving plate. The connecting frame and the limiting posts form a sliding connection. The connecting rods are symmetrically installed at the four corners of the top surface of the connecting frame with the center of the connecting frame as the reference. The limiting posts can restrict the movement direction of the connecting frame.
[0011] As a preferred embodiment of this utility model, the upper end of the lower pressure plate is fixedly connected to the lower end of the support spring, and the lower pressure plate and the connecting rod form a sliding connection; the support spring facilitates the lower pressure plate to apply a downward force to the plastic bag, and the lower pressure plate can limit the position of the plastic bag.
[0012] As a preferred embodiment of this utility model, the adjusting piston is symmetrically installed on the right side of the top surface of the base plate with the center of the base plate as the reference, and the connecting block is mirror-symmetrically installed on the upper end of the adjusting piston on both the front and rear sides of the base plate with the center of the base plate as the reference; the adjusting piston can adjust the position of the connecting block.
[0013] As a preferred embodiment of this utility model, the connecting column is symmetrically installed on the left side of the bottom surface of the connecting plate with the center of the connecting plate as the reference. The upper end of the compression spring is fixedly connected to the bottom surface of the connecting plate, and the lower end of the compression spring is fixedly connected to the top surface of the limiting frame. The connecting column can restrict the movement direction of the limiting frame.
[0014] As a preferred embodiment of this utility model, the limiting frame and the connecting column form a sliding connection, and the guide wheels are symmetrically installed on the front and rear sides of the limiting frame with the center of the limiting frame as the reference. The guide wheels and the limiting frame form a rotational connection. The limiting frame can restrict the position of the guide wheels.
[0015] Compared with the prior art, this utility model provides a sealing ironing device for plastic bag production, which has the following beneficial effects:
[0016] 1. This utility model adjusts the piston by symmetrically installing it on the right side of the top surface of the base plate with the center of the base plate as the reference. The connecting block is mirror-symmetrically installed on the upper end of the adjusting piston on both sides of the base plate with the center of the base plate as the reference. The shaftless cylinder is installed between the connecting blocks. By adjusting the piston, the position of the connecting block is changed, which changes the height of the shaftless cylinder, so that the heat-conducting plate under the connecting plate comes into contact with the plastic bag. This method can create a certain pressure between the heat-conducting plate and the sealing edge of the plastic bag to ensure the ironing effect.
[0017] 2. This utility model features a connecting frame that is fixedly connected to the connecting block via an adapter block. Limiting posts are symmetrically installed on the front and back sides of the connecting frame, with the center as the reference. The upper end of the limiting posts contacts the bottom surface of the receiving plate, and a sliding connection is formed between the connecting frame and the limiting posts. Connecting rods are symmetrically installed at the four corners of the top surface of the connecting frame, with the center as the reference. The upper end of the lower pressure plate is fixedly connected to the lower end of the support spring, and a sliding connection is formed between the lower pressure plate and the connecting rods. The lower pressure plate is located above the receiving plate. As the adjusting piston moves the connecting block downwards, the lower pressure plate moves downwards under the influence of the connecting frame. When the bottom surface of the lower pressure plate contacts the plastic bag, the lower pressure plate and the limiting plate press against the support spring. The reaction force exerted by the support spring on the lower pressure plate during contraction causes the lower pressure plate to press the plastic bag onto the receiving plate, thus fixing the plastic bag. This method prevents the plastic bag from shifting during ironing. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the connection structure between the base plate and the support column of this utility model;
[0020] Figure 3This is a schematic diagram of the connection structure between the base plate and the adjusting piston of this utility model;
[0021] Figure 4 This is a schematic diagram of the connection structure between the connecting plate and the limiting frame of this utility model;
[0022] The components are as follows: 1. Base plate; 11. Support column; 12. Receiving plate; 13. Limiting column; 14. Connecting frame; 15. Connecting rod; 16. Limiting plate; 17. Support spring; 18. Lower pressure plate; 2. Adjusting piston; 21. Connecting block; 22. Transfer block; 23. Shaftless cylinder; 24. Connecting plate; 25. Connecting column; 26. Lower pressure spring; 27. Limiting frame; 28. Guide wheel; 29. Protective shell; 210. Heating plate; 211. Heat conducting plate. Detailed Implementation
[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] Please see Figure 1 - Figure 4In this embodiment, a sealing and ironing device for producing plastic bags includes: a base plate 1, a support column 11 fixedly installed above the base plate 1, a receiving plate 12 fixedly installed above the support column 11, a limiting column 13 fixedly installed above the base plate 1, a connecting frame 14 inserted above the limiting column 13, a connecting rod 15 fixedly installed above the connecting frame 14, a limiting plate 16 fixedly installed at the upper end of the connecting rod 15, a support spring 17 inserted on the outer side of the connecting rod 15, and a lower pressure plate 18 inserted on the outer side of the connecting rod 15.
[0027] The support columns 11 are symmetrically installed at the four corners of the bottom surface of the support plate 12 with the center of the support plate 12 as the reference, and the support plate 12 is fixedly connected to the base plate 1 through the support columns 11.
[0028] The limiting post 13 is symmetrically installed on the front and back sides of the connecting frame 14 with the center of the connecting frame 14 as the reference. The upper end of the limiting post 13 contacts the bottom surface of the receiving plate 12. The connecting frame 14 and the limiting post 13 form a sliding connection. The connecting rod 15 is symmetrically installed at the four corners of the top surface of the connecting frame 14 with the center of the connecting frame 14 as the reference.
[0029] The upper end of the lower pressure plate 18 is fixedly connected to the lower end of the support spring 17, and the lower pressure plate 18 and the connecting rod 15 form a sliding connection.
[0030] Specifically, the base plate 1 can support the support column 11, the support column 11 can limit the position of the receiving plate 12, the receiving plate 12 can receive the plastic bag, the limiting column 13 can limit the movement direction of the connecting frame 14, the right side of the connecting frame 14 is fixedly connected to the adapter block 22, the connecting frame 14 can drive the connecting rod 15 to move, the connecting rod 15 can limit the movement direction of the lower pressure plate 18, the limiting plate 16 can limit the position of the upper end of the support spring 17, the support spring 17 can facilitate the lower pressure plate 18 to apply a downward force to the plastic bag, and the lower pressure plate 18 can limit the position of the plastic bag.
[0031] An adjusting piston 2 is fixedly installed on the top of the base plate 1. A connecting block 21 is fixedly installed on the upper end of the adjusting piston 2. A transition block 22 is fixedly installed on the lower part of the connecting block 21. A shaftless cylinder 23 is fixedly installed on the rear side of the connecting block 21. A connecting plate 24 is fixedly installed on the upper end of the slider of the shaftless cylinder 23. A connecting column 25 is fixedly installed on the lower part of the connecting plate 24. A pressure spring 26 is inserted through the outside of the connecting column 25. A limit frame 27 is inserted through the outside of the connecting column 25. A guide wheel 28 is movably installed inside the limit frame 27. A protective shell 29 is fixedly installed on the lower end of the connecting column 25. An electric heating plate 210 is fixedly installed inside the protective shell 29. A heat-conducting plate 211 is fixedly installed below the electric heating plate 210.
[0032] The adjusting piston 2 is symmetrically installed on the right side of the top surface of the base plate 1 with the center of the base plate 1 as the reference. The connecting block 21 is mirror-symmetrically installed on the upper end of the adjusting piston 2 on both the front and rear sides of the base plate 1 with the center of the base plate 1 as the reference.
[0033] The connecting column 25 is symmetrically installed on the left side of the bottom surface of the connecting plate 24 with the center of the connecting plate 24 as the reference. The upper end of the compression spring 26 is fixedly connected to the bottom surface of the connecting plate 24, and the lower end of the compression spring 26 is fixedly connected to the top surface of the limit frame 27.
[0034] The limiting frame 27 and the connecting column 25 are slidably connected. The guide wheel 28 is symmetrically installed on the front and rear sides of the limiting frame 27 with the center of the limiting frame 27 as the reference. The guide wheel 28 and the limiting frame 27 are rotatably connected.
[0035] Specifically, the adjusting piston 2 can adjust the position of the connecting block 21, the connecting block 21 can limit the position of the shaftless cylinder 23, the adapter block 22 can facilitate the adjusting piston 2 to drive the connecting frame 14 to move, the shaftless cylinder 23 can drive the connecting plate 24 to move back and forth, the connecting plate 24 can facilitate the electric heating plate 210 to move back and forth, the connecting column 25 can limit the movement direction of the limiting frame 27, the downward spring 26 can facilitate the application of a downward force to the limiting frame 27, the limiting frame 27 can limit the position of the guide wheel 28, the guide wheel 28 can seal the edge of the heat-conducting plate 211 after it passes through the flattened plastic strip, the protective shell 29 can protect the electric heating plate 210, the electric heating plate 210 can generate heat, and the heat-conducting plate 211 can iron the sealing edge.
[0036] In use, the connecting frame 14 is fixedly connected to the connecting block 21 via the adapter block 22. The limiting posts 13 are symmetrically installed on the front and rear sides of the connecting frame 14, with the center of the connecting frame 14 as the reference. The upper end of the limiting posts 13 contacts the bottom surface of the receiving plate 12, and a sliding connection is formed between the connecting frame 14 and the limiting posts 13. The connecting rods 15 are symmetrically installed at the four corners of the top surface of the connecting frame 14, with the center of the connecting frame 14 as the reference. The upper end of the lower pressure plate 18 is fixedly connected to the lower end of the support spring 17, and a sliding connection is formed between the lower pressure plate 18 and the connecting rods 15. The lower pressure plate 18 is located above the receiving plate 12. As the adjusting piston 2 moves the connecting block 21 downwards, the lower pressure plate 18 moves downwards under the influence of the connecting frame 14. When the bottom surface of the lower pressure plate 18 contacts the plastic bag, the lower pressure plate 18 and the limiting plate 16 press against the support spring 17, thereby supporting the spring. When the spring 17 contracts, it applies a reaction force to the lower pressure plate 18, causing the lower pressure plate 18 to press the plastic bag onto the receiving plate 12, thus fixing the plastic bag. This method can prevent the plastic bag from shifting during ironing. The adjusting piston 2 is symmetrically installed on the right side of the top surface of the base plate 1 with the center of the base plate 1 as the reference. The connecting block 21 is mirror-symmetrically installed on the upper end of the adjusting piston 2 on both sides of the base plate 1 with the center of the base plate 1 as the reference. The shaftless cylinder 23 is installed between the connecting blocks 21. By adjusting the piston 2, the position of the connecting block 21 is changed, which changes the height of the shaftless cylinder 23, so that the heat-conducting plate 211 under the connecting plate 24 comes into contact with the plastic bag. This method can create a certain pressure between the heat-conducting plate 211 and the edge of the plastic bag to ensure the ironing effect. The edge of the plastic bag is ironed by moving the connecting plate 24 back and forth with the shaftless cylinder 23.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sealing and ironing device for plastic bag production, characterized in that, include: A base plate (1) is provided, on which a support column (11) is fixedly installed. A receiving plate (12) is fixedly installed above the support column (11). A limiting column (13) is fixedly installed above the base plate (1). A connecting frame (14) is inserted above the limiting column (13). A connecting rod (15) is fixedly installed above the connecting frame (14). A limiting plate (16) is fixedly installed at the upper end of the connecting rod (15). A support spring (17) is inserted through the outside of the connecting rod (15). A pressure plate (18) is inserted through the outside of the connecting rod (15). An adjusting piston (2) is fixedly installed above the base plate (1). A connecting block (21) is fixedly installed at the upper end of the adjusting piston (2). A transition block (22) is fixedly installed below the connecting block (21). A shaftless cylinder (23) is fixedly installed on the rear side of the connecting block (21). A connecting plate (24) is fixedly installed on the upper end of the slider of the shaftless cylinder (23). A connecting column (25) is fixedly installed below the connecting plate (24). A pressure spring (26) is inserted through the outside of the connecting column (25). A limit frame (27) is inserted through the outside of the connecting column (25). A guide wheel (28) is movably installed inside the limit frame (27). A protective shell (29) is fixedly installed at the lower end of the connecting column (25). An electric heating plate (210) is fixedly installed inside the protective shell (29). A heat-conducting plate (211) is fixedly installed below the electric heating plate (210).
2. The sealing and ironing equipment for plastic bag production according to claim 1, characterized in that: The support column (11) is symmetrically installed at the four corners of the bottom surface of the support plate (12) with the center of the support plate (12) as the reference. The support plate (12) is fixedly connected to the base plate (1) through the support column (11).
3. The sealing and ironing equipment for plastic bag production according to claim 1, characterized in that: The limiting post (13) is symmetrically installed on the front and back sides of the connecting frame (14) with the center of the connecting frame (14) as the reference. The upper end of the limiting post (13) is in contact with the bottom surface of the receiving plate (12). The connecting frame (14) and the limiting post (13) form a sliding connection. The connecting rod (15) is symmetrically installed at the four corners of the top surface of the connecting frame (14) with the center of the connecting frame (14) as the reference.
4. The sealing and ironing equipment for plastic bag production according to claim 1, characterized in that: The upper end of the lower pressure plate (18) is fixedly connected to the lower end of the support spring (17), and the lower pressure plate (18) and the connecting rod (15) form a sliding connection.
5. The sealing and ironing equipment for plastic bag production according to claim 1, characterized in that: The adjusting piston (2) is symmetrically installed on the right side of the top surface of the base plate (1) with the center of the base plate (1) as the reference. The connecting block (21) is mirror-symmetrically installed on the upper end of the adjusting piston (2) on both sides of the base plate (1) with the center of the base plate (1) as the reference.
6. The sealing and ironing equipment for plastic bag production according to claim 1, characterized in that: The connecting column (25) is symmetrically installed on the left side of the bottom surface of the connecting plate (24) with the center of the connecting plate (24) as the reference. The upper end of the compression spring (26) is fixedly connected to the bottom surface of the connecting plate (24), and the lower end of the compression spring (26) is fixedly connected to the top surface of the limiting frame (27).
7. The sealing and ironing equipment for plastic bag production according to claim 1, characterized in that: The limiting frame (27) and the connecting column (25) form a sliding connection. The guide wheel (28) is symmetrically installed on the front and rear sides of the limiting frame (27) with the center of the limiting frame (27) as the reference. The guide wheel (28) and the limiting frame (27) form a rotating connection.
Citation Information
Patent Citations
Efficient surface ironing equipment for plastic woven bag processing
CN218342960U