A blank holder device for a composite film bag making machine

Abstract

The utility model provides a kind of edge pressing device for composite film bag making machine, belong to packaging machinery manufacturing technical field, including edge pressing mechanism, including fixedly installed in the surface of frame support, set in the lower pressing subassembly of support end part, fixedly connected in the surface of lower pressing subassembly unfolding subassembly, and rotationally connected in the side wall of unfolding subassembly stretch component.The utility model is through the symmetrical arrangement of specific angle of rolling wheel in unfolding subassembly, can effectively spread composite film, eliminate the wrinkle generated in transmission process;Stretch component is further stretched to composite film by the tension effect of tension spring, ensure that composite film is in flat state before edge pressing;The design of screw rod and handle in lower pressing subassembly, so that operator can adjust the lower pressing position according to the thickness of composite film and actual production demand, device is easy and efficient to operate, effectively solve the wrinkle that traditional edge pressing device can cause, lead to product unqualified etc.

Description

Technical Field

[0001] This utility model belongs to the field of packaging machinery manufacturing technology, specifically relating to a pressing device for a composite film bag making machine. Background Technology

[0002] As a core piece of equipment in the packaging industry, the development of composite film bag making machines has always revolved around improving efficiency and quality. As a key post-processing step in bag making, the edge pressing device was originally used to simply compact and shape the heat-sealed edges. With the increasing demands for sealing strength and smoothness of flexible packaging bags in the food, daily chemical, and pharmaceutical industries, the application scenarios of edge pressing devices have become increasingly widespread. Its role has also evolved from basic shaping to a core element in ensuring strong and aesthetically pleasing edges and preventing leakage. The evolution of this device directly reflects the development trend of packaging equipment from meeting basic functions to pursuing high performance and high reliability.

[0003] In the edge pressing process of traditional composite film bag making machines, the existing edge pressing device has structural design defects. Its downward pressure is difficult to control precisely and it lacks an effective function to stretch the composite film. This makes the composite film very prone to wrinkles when pressing the edge, which not only affects the appearance of the product, but also leads to a decrease in sealing performance and a reduction in product qualification rate, which seriously restricts production efficiency and enterprise benefits. Therefore, an edge pressing device for composite film bag making machines has emerged. Utility Model Content

[0004] The purpose of this invention is to provide a pressing device for a composite film bag making machine, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An edge-pressing device for a composite film bag making machine includes, The conveying mechanism includes a membrane plate, a frame fixedly installed on the side wall of the membrane plate, and a conveying roller rotatably connected to the inner wall of the frame. The pressing mechanism includes a bracket fixedly installed on the surface of the frame, a pressing component disposed at the end of the bracket, an unfolding component fixedly connected to the surface of the pressing component, and an extending component rotatably connected to the side wall of the unfolding component. The pressing assembly includes a top plate fixedly installed at the end of the bracket, a cylinder disposed on the surface of the top plate, a guide rail fixedly connected to the output end of the cylinder, a lead screw rotatably connected to the inner wall of the guide rail, a handle locked at the end of the lead screw, and a moving block threadedly connected to the surface of the lead screw.

[0006] As a preferred embodiment of this utility model, the inner wall of the bracket is provided with a slide rail, and the guide rail is slidably connected to the inner wall of the bracket.

[0007] As a preferred embodiment of this utility model, the unfolding assembly includes a mounting plate fixedly installed on the surface of the movable block, a connecting rod fixedly connected to the bottom of the mounting plate, and a mounting bracket fitted into the side wall of the connecting rod.

[0008] As a preferred embodiment of the present invention, the unfolding assembly further includes a directional plate fixedly installed at the bottom of the mounting frame, a bolt inserted into the inner wall of the mounting frame, and a nut threadedly connected to the surface of the bolt.

[0009] As a preferred embodiment of the present invention, the unfolding assembly further includes a shaft block fixedly connected to the end of the bolt, a spring inserted into the surface of the bolt, and a rolling wheel rotatably connected to the axis of the shaft block.

[0010] As a preferred embodiment of this utility model, the stretching component includes a pull plate fixedly installed at the bottom of the mounting plate, and a rotating rod rotatably connected to the inner wall of the mounting plate.

[0011] As a preferred embodiment of the present invention, the stretching assembly further includes a roller rotatably connected to the end of the rotating rod, and a tension spring fixedly connected to the surface of the stretching plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the rolling rollers in the unfolding component are arranged symmetrically at a specific angle, which can effectively unfold the composite film and eliminate wrinkles generated during the transmission process; the stretching component further stretches the composite film through the tension of the tension spring, ensuring that the composite film is in a flat state before pressing; the screw and handle design in the pressing component allows the operator to fine-tune the pressing position according to the thickness of the composite film and the actual production needs. The device is simple and efficient to operate, and effectively solves the problems that traditional pressing devices may cause wrinkles, leading to unqualified products. Attached Figure Description

[0013] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the downward pressing component structure of this utility model; Figure 3 This is a schematic diagram of the structure of the stretching component of this utility model; Figure 4 For the present utility model Figure 3Enlarged diagram of point A in the middle.

[0014] In the diagram: 100, conveying mechanism; 101, membrane pressing plate; 102, frame; 103, conveying roller; 200, edge pressing mechanism; 201, bracket; 202, pressing assembly; 203, unfolding assembly; 204, stretching assembly; 202a, top plate; 202b, cylinder; 202c, guide rail; 202d, lead screw; 202e, handle; 202f, moving block; 203a, mounting plate; 203b, connecting rod; 203c, mounting bracket; 203d, orientation plate; 203e, bolt; 203f, nut; 203g, shaft block; 203h, spring; 203i, rolling roller; 204a, pull plate; 204b, rotating rod; 204c, roller; 204d, tension spring. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0018] Example Reference Figures 1-4 This embodiment of the present invention provides a pressing device for a composite film bag making machine, comprising: The conveying mechanism 100 includes a membrane plate 101, a frame 102 fixedly installed on the side wall of the membrane plate 101, and a conveying roller 103 rotatably connected to the inner wall of the frame 102. The pressing mechanism 200 includes a bracket 201 fixedly installed on the surface of the frame 102, a pressing component 202 disposed at the end of the bracket 201, an unfolding component 203 fixedly connected to the surface of the pressing component 202, and an stretching component 204 rotatably connected to the side wall of the unfolding component 203. The pressing assembly 202 includes a top plate 202a fixedly installed at the end of the bracket 201, a cylinder 202b disposed on the surface of the top plate 202a, a guide rail 202c fixedly connected to the output end of the cylinder 202b, a lead screw 202d rotatably connected to the inner wall of the guide rail 202c, a handle 202e locked at the end of the lead screw 202d, and a moving block 202f threadedly connected to the surface of the lead screw 202d.

[0019] Specifically, the inner wall of the bracket 201 is provided with a slide rail, and the guide rail 202c is slidably connected to the inner wall of the bracket 201.

[0020] The movable block 202f and the lead screw 202d are threaded together, and the movable block 202f will move along the axial direction of the lead screw 202d, thereby realizing the fine adjustment of the position of the unfolding component and the stretching component to adapt to different composite membranes.

[0021] Furthermore, the unfolding assembly 203 includes a mounting plate 203a fixedly mounted on the surface of the movable block 202f, a connecting rod 203b fixedly connected to the bottom of the mounting plate 203a, a mounting bracket 203c fitted into the side wall of the connecting rod 203b, a directional plate 203d fixedly mounted on the bottom of the mounting bracket 203c, a bolt 203e inserted into the inner wall of the mounting bracket 203c, a nut 203f threadedly connected to the surface of the bolt 203e, a shaft block 203g fixedly connected to the end of the bolt 203e, a spring 203h inserted into the surface of the bolt 203e, and a rolling wheel 203i rotatably connected to the axis of the shaft block 203g.

[0022] Among them, the shaft block 203g is slidably connected to the inner wall of the orientation plate 203d, the nut 203f is set on the surface of the mounting bracket 203c, the spring 203h is set on the surface of the shaft block 203g, and the rolling rollers 203i are symmetrically arranged at 10°-30° along the direction of composite film movement. This arrangement can effectively unfold the composite film, eliminate the wrinkles generated during the transmission of the composite film, and make the composite film enter the subsequent process more smoothly.

[0023] Preferably, the stretching assembly 204 includes a pull plate 204a fixedly installed at the bottom of the mounting plate 203a, a rotating rod 204b rotatably connected to the inner wall of the mounting plate 203a, a roller 204c rotatably connected to the end of the rotating rod 204b, and a tension spring 204d fixedly connected to the surface of the pull plate 204a.

[0024] It should be noted that one end of the tension spring 204d is fixedly connected to the surface of the tension plate 204a, and the other end is fixedly connected to the side wall of the rotating rod 204b. The rotating rod 204b and the roller 204c maintain a certain angle and pressure, thereby effectively stretching the composite film, further eliminating wrinkles on the composite film, and improving the flatness of the composite film.

[0025] In use, cylinder 202b is activated first, pushing guide rail 202c downwards along the slide rail on the inner wall of bracket 201. Turning handle 202e causes lead screw 202d to rotate, which in turn moves moving block 202f along the axial direction of lead screw 202d, thus adjusting the pressing position. As pressing component 202 presses down, unfolding component 203 also moves downwards until the rolling roller 203i contacts the surface of the composite film. When the composite film is on conveyor roller 1... As the composite membrane continues to move forward under the influence of roller 203, the roller 203i applies an outward force to the composite membrane, gradually unfolding it and eliminating wrinkles that may occur during transport. When the surface of the composite membrane is uneven, the spring 203h undergoes elastic deformation, allowing the roller 203i to better conform to the surface of the composite membrane. The roller 204c contacts the surface of the composite membrane, and as the composite membrane moves, the roller 204c rotates under the influence of the composite membrane, eliminating any tiny wrinkles that may remain on the composite membrane and improving its flatness.

[0026] In summary, the symmetrical arrangement of the rolling rollers 203i in the unfolding component 203 at a specific angle effectively unfolds the composite film, eliminating wrinkles generated during transport. The stretching component 204 further stretches the composite film through the tension of the tension spring 204d, ensuring that the composite film is flat before pressing. The design of the lead screw 202d and handle 202e in the pressing component 202 allows operators to fine-tune the pressing position according to the thickness of the composite film and actual production needs. The device is simple and efficient to operate, effectively solving the problems that traditional pressing devices may cause wrinkles, leading to product defects.

[0027] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0028] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0029] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pressing device for a composite film bag making machine, characterized in that: include, The conveying mechanism (100) includes a membrane plate (101), a frame (102) fixedly installed on the side wall of the membrane plate (101), and a conveying roller (103) rotatably connected to the inner wall of the frame (102). The pressing mechanism (200) includes a bracket (201) fixedly installed on the surface of the frame (102), a pressing component (202) disposed at the end of the bracket (201), an unfolding component (203) fixedly connected to the surface of the pressing component (202), and an extension component (204) rotatably connected to the side wall of the unfolding component (203). The pressing assembly (202) includes a top plate (202a) fixedly installed at the end of the bracket (201), a cylinder (202b) disposed on the surface of the top plate (202a), a guide rail (202c) fixedly connected to the output end of the cylinder (202b), a lead screw (202d) rotatably connected to the inner wall of the guide rail (202c), a handle (202e) locked at the end of the lead screw (202d), and a moving block (202f) threadedly connected to the surface of the lead screw (202d).

2. The edge-pressing device for a composite film bag making machine according to claim 1, characterized in that: The inner wall of the bracket (201) is provided with a slide rail, and the guide rail (202c) is slidably connected to the inner wall of the bracket (201).

3. The edge-pressing device for a composite film bag making machine according to claim 2, characterized in that: The unfolding assembly (203) includes a mounting plate (203a) fixedly mounted on the surface of the movable block (202f), a connecting rod (203b) fixedly connected to the bottom of the mounting plate (203a), and a mounting bracket (203c) fitted into the side wall of the connecting rod (203b).

4. The edge-pressing device for a composite film bag making machine according to claim 3, characterized in that: The unfolding assembly (203) also includes a directional plate (203d) fixedly installed at the bottom of the mounting frame (203c), a bolt (203e) inserted into the inner wall of the mounting frame (203c), and a nut (203f) threadedly connected to the surface of the bolt (203e).

5. The edge-pressing device for a composite film bag making machine according to claim 4, characterized in that: The unfolding assembly (203) also includes a shaft block (203g) fixedly connected to the end of the bolt (203e), a spring (203h) inserted into the surface of the bolt (203e), and a rolling wheel (203i) rotatably connected to the axis of the shaft block (203g).

6. The edge-pressing device for a composite film bag making machine according to claim 5, characterized in that: The stretching component (204) includes a pull plate (204a) fixedly installed at the bottom of the mounting plate (203a) and a rotating rod (204b) rotatably connected to the inner wall of the mounting plate (203a).

7. The edge-pressing device for a composite film bag making machine according to claim 6, characterized in that: The stretching assembly (204) also includes a roller (204c) rotatably connected to the end of the rotating rod (204b) and a tension spring (204d) fixedly connected to the surface of the pull plate (204a).

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