folding mechanism
Patent Information
- Application Number
- CN202522236180.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-23
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-10-23
AI Technical Summary
[0002]现有的薄膜、无纺布等袋体的折叠通常采用带槽辊组配合带齿插板，插板的齿牙插入辊组的槽口内，将物料折叠送入辊组，然而齿牙齿口接触物料的时候，易导致薄膜/无纺布等软性材料变形或破损，且物料边缘存在没有齿牙支撑的情况，导致进入辊组时，折叠物料边缘会发生内折，影响折叠质量
[0009]本实用新型的有益效果是改进后的折叠机构，取消齿牙结构，改用平滑插板，配合各辊组与传送带组合，双传送带渐缩设计形成柔性支撑、导向通道，物料在渐缩通道中被渐进聚拢，边缘受传送带全程约束，实现物料的无损折叠。
Smart Images
Figure CN224917184U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an improvement invention in the field of folding, and in particular to an improvement invention of a folding mechanism for bags made of film, non-woven fabric, etc. Background Technology
[0002] Existing methods for folding bags made of film, non-woven fabric, etc., typically employ grooved roller sets with toothed inserts. The teeth of the inserts are inserted into the grooves of the roller set, folding the material and feeding it into the roller set. However, when the teeth contact the material, it can easily cause deformation or damage to soft materials such as film / non-woven fabric. Furthermore, the edges of the material often lack tooth support, causing the edges of the folded material to fold inwards upon entering the roller set, affecting the folding quality. In addition, the fixing structure of grooved roller sets with toothed inserts is difficult to adapt to materials of different thicknesses, limiting its application. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a folding mechanism that folds without damage and folds neatly.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The folding mechanism includes a frame, characterized in that: a first roller group, a second roller group, and a third roller group are provided on the frame; the first roller group includes a roller and a roller arranged at intervals; the second roller group includes a roller and a roller that cooperate; and the third roller group includes a roller and a roller that cooperate. A first conveyor belt is wound between the a roller and the e roller, and a second conveyor belt is wound between the b roller and the f roller. The first and second conveyor belts are arranged synchronously. The c roller and the d roller are located within the first and second conveyor belts, respectively. The distance between the first and second conveyor belts gradually narrows from the first roller group to the second roller group. An insert plate is provided on the conveying side of the first roller group, and the insert plate can move through the space between the a roller and the b roller.
[0005] The folding mechanism has multiple interconnected sets.
[0006] The distance between the c-roller and the d-roller is adjustable, and the corresponding c-roller and d-roller are respectively set on the adjustment seat.
[0007] The space between rollers a and b can accommodate inserts and folded materials.
[0008] The widths of the insert plate, the first conveyor belt, and the second conveyor belt are all greater than the width of the material.
[0009] The beneficial effect of this utility model is that the improved folding mechanism eliminates the tooth structure and replaces it with a smooth insert plate. Combined with each roller group and the conveyor belt, the double conveyor belt tapering design forms a flexible support and guide channel. The material is gradually gathered in the tapering channel, and the edges are constrained by the conveyor belt throughout the entire process, realizing the non-destructive folding of the material. Attached Figure Description
[0010] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 This is a diagram showing the combination of the two folding mechanisms of this utility model. Detailed Implementation
[0013] The accompanying drawings illustrate the structure of this utility model, and further details will be described below in conjunction with the drawings. In this embodiment, see the attached drawings. Figure 1 The folding mechanism includes a frame on which a first roller group, a second roller group, and a third roller group are mounted. The first roller group includes a roller 1 and a roller 2 arranged at intervals. The second roller group includes a roller 3 and a roller 4 that cooperate with each other. The third roller group includes an e roller 5 and a f roller 6 that cooperate with each other. A first conveyor belt 7 is wound between the a roller 1 and the e roller 5. A second conveyor belt 8 is wound between the b roller 2 and the f roller 6. The first conveyor belt 7 and the second conveyor belt 8 are set synchronously. The c roller 3 and the d roller 4 are located within the first conveyor belt 7 and the second conveyor belt 8, respectively. The distance between the first conveyor belt 7 and the second conveyor belt 8 gradually narrows from the first roller group to the second roller group. An insert plate 9 is provided on the conveying side of the first roller group. The insert plate 9 can move through the space between the a roller 1 and the b roller 2. The insert plate 9 can be driven by a translation structure. Specifically, the insert plate can be raised and lowered in the gantry frame and is equipped with a lifting guide rod. The insert plate is connected to a cylinder or a cam linkage mechanism for transmission.
[0014] The working principle of this utility model is that the material passes through the conveying direction perpendicular to the first roller group. Specifically, the material is die-cut and conveyed to the material platform. The material platform is provided with a feeding groove. The insert plate 9 corresponds to the feeding groove and inserts the material between roller a1 and roller b2 and between the first conveyor belt 7 and the second conveyor belt 8 to form a V-shaped pre-folding base. As the interval between the first conveyor belt 7 and the second conveyor belt 8 gradually decreases, the material is guided and gathered, and folded under the rolling action of roller c3 and roller d4 of the second roller group. The folded material continues to be conveyed to the third roller group for discharge.
[0015] For a further improved implementation method, see Appendix Figure 2 The folding mechanism comprises multiple interconnected sets. Taking two sets as an example, the discharge end of the first folding mechanism connects to the feed end of the second folding mechanism, enabling continuous multi-layer folding. The folding direction can be varied; that is, the first folding mechanism completes one lateral fold, and the device continues into the second folding mechanism to complete a second lateral or longitudinal fold. The folding mechanisms are connected by a conveyor belt, specifically, the conveyor belt connects the discharge end of the first folding mechanism to the feed end of the second folding mechanism.
[0016] As a further improved specific implementation, the distance between the c roller 3 and the d roller 4 is adjustable, and the corresponding c roller 3 and d roller 4 are respectively set on the adjustment seat, so that different width and thickness materials can be quickly switched by adjusting the roller distance.
[0017] As a further improved specific implementation, the space between roller a1 and roller b2 can accommodate insert plate 9 and folded material, adapting to the entry of materials of different thicknesses.
[0018] As a further improved implementation, the widths of the insert plate 9, the first conveyor belt 7, and the second conveyor belt 8 are all greater than the width of the material to avoid missing edges.
[0019] In summary, the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A folding mechanism, including a frame, characterized in that: The frame is equipped with a first roller group, a second roller group, and a third roller group. The first roller group includes rollers a and b arranged at intervals. The second roller group includes rollers c and d that cooperate with each other. The third roller group includes rollers e and f that cooperate with each other. A first conveyor belt is wound between rollers a and e, and a second conveyor belt is wound between rollers b and f. The first and second conveyor belts are set synchronously. Rollers c and d are located within the first and second conveyor belts, respectively. The distance between the first and second conveyor belts gradually narrows from the first roller group to the second roller group. An insert plate is provided on the conveying side of the first roller group. The insert plate can move and pass between rollers a and b.
2. The folding mechanism as described in claim 1, characterized in that: The folding mechanism has multiple interconnected sets.
3. The folding mechanism as described in claim 1, characterized in that: The distance between the c-roller and the d-roller is adjustable, and the corresponding c-roller and d-roller are respectively set on the adjustment seat.
4. The folding mechanism as described in claim 1, characterized in that: The space between rollers a and b can accommodate inserts and folded materials.
5. The folding mechanism as described in claim 1, characterized in that: The widths of the insert plate, the first conveyor belt, and the second conveyor belt are all greater than the width of the material.