Sealing bag turnover mechanism
By designing a sealed bag flipping mechanism and utilizing components such as positioning rollers, reversing tensioning rollers, and guide knives, the flipping problem caused by displacement in plastic bag processing was solved, achieving smooth flipping without creases and efficient production.
Patent Information
- Application Number
- CN202422934440.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-29
AI Technical Summary
During the plastic bag processing, the double-layer plastic film is displaced due to long-term roller conveying and cannot be directly cross-flipped, affecting the sealing and production efficiency.
A sealed bag flipping mechanism is designed, which includes a frame, a folding group and a guiding group. Through the combination of positioning rollers, reversing tensioning rollers, seam-stopping knives and guiding knives, the plastic film is tensioned, fixed and guided to prevent displacement and folding during the flipping process.
It effectively prevents the cross displacement and reversal of the plastic film, ensures that the turning process of the sealed bag is smooth and without creases, and improves production efficiency and sealing.
Smart Images
Figure CN223384054U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic bag processing equipment, and more particularly to a sealing bag turnover mechanism. Background Art
[0002] Food sealing bags are daily necessities. They can be made into garbage bags, ice bags, grocery bags, heavy packaging bags, and wrapping bags.
[0003] LLDPE can be made into garbage bags, ice bags, grocery bags, heavy packaging bags, and wrapping bags. It can also be used as the inner sealing layer of composite flexible packaging materials. Compared with LDPE, it makes the sealing of bags more reliable and the heat sealing strength at the sealing point is higher, but the cost is higher than LDPE.
[0004] In the actual processing process, plastic film is usually used as the raw material for processing. In the actual continuous production process, reversal is required in the middle. Usually, direct cross-over on a certain roller surface is sufficient. However, when processing sealed bags, double-layer plastic film will be displaced between the two layers due to long-term roller transportation, so direct cross-over and flipping cannot be performed. Utility Model Content
[0005] The utility model aims to provide a sealing bag turnover mechanism, which can prevent cross displacement after turnover.
[0006] The above technical objectives of the present utility model are achieved through the following technical solutions: a sealed bag turning mechanism, comprising a frame, a folding group, and a guiding group;
[0007] The folding group is arranged on the frame, and the folding group includes two mounting plates arranged opposite to each other on the frame, two positioning rollers are arranged side by side and in parallel between the two mounting plates, and the roller surfaces abut against each other to form a pressure on the sealed bag, and a reversing tensioning roller is further arranged between the two mounting plates, and the axis of the reversing tensioning roller is located between the two positioning rollers, and the reversing tensioning roller is located on the side of the positioning roller close to the frame, and a seam knife abutting the sealing bag is also suspended between the two positioning rollers, and one end of the seam knife is close to the contact seam of the two positioning rollers, and the axis of the seam knife is inclined to the flipping direction of the sealed bag to form an angle with the plane of the two positioning rollers;
[0008] The guide group is arranged on the frame and located in the discharge direction of the folding group. The guide group includes a folding knife and a support rod. The support rod is fixedly arranged on the frame. One end of the folding knife is located between the two positioning rollers. The end of the folding knife away from the positioning roller is arranged at the end of the support rod away from the frame.
[0009] Two parallel positioning rollers clamp and rotate the plastic film, which can prevent the plastic film from crossing and affecting the incoming direction without affecting the transmission of the plastic film. The setting of the tensioning reversing roller can tighten and fix the plastic film, thereby preventing the plastic film at the input end from reversing and forming creases or folding during transportation.
[0010] The present invention is further configured as follows: the sealing bag moves from the input direction to the output direction of the frame, the sealing bag passes over the two positioning rollers, enters between the two positioning rollers, and covers the reversing tensioning roller, and then is connected to the guide group from above the two positioning rollers, wherein the seam-stopping knife abuts against the side of the sealing bag close to the frame, and the folding knife is inserted between the two layers of the sealing bags to form a guide limit.
[0011] The setting of the seam-stopping knife can assist the turning over of the sealed bag, and can also assist the sealed bag to avoid excessive turning over to affect the direction of the incoming material, and can also achieve the reduction of creases.
[0012] The utility model is further configured as follows: a mounting portion is further provided on one side of the mounting plates away from the frame body, a mounting rod is provided on the mounting portion, and the mounting rod is provided with the seam-retaining knife installed at an angle to the axial direction of the mounting rod.
[0013] By installing the seam knife at an angle through the mounting rod, the folding angle can be adjusted to a more practical platform height to avoid scratching or puncturing the sealed bag.
[0014] The present invention is further configured as follows: the guide group further comprises a plurality of guide rollers arranged side by side, and the guide rollers are all arranged on a side of the support rod away from the folding knife.
[0015] The setting of the guide roller can better evenly distribute the folded sealed bags.
[0016] The utility model is further configured as follows: the plurality of guide rollers are evenly spaced from each other.
[0017] The evenly spaced setting can turn the sealed bag over more smoothly through running inertia.
[0018] The present invention is further configured as follows: the guide group further comprises a guide knife, and the guide knife is horizontally arranged on the frame and located at the output end of the plurality of guide rollers.
[0019] The provision of the guide knife can prevent the folding from failing.
[0020] In summary, the utility model has the following beneficial effects: two parallel abutting positioning rollers clamp and rotate the plastic film, which can prevent the plastic film from crossing and affecting the incoming direction of the plastic film without affecting the transmission of the plastic film. The setting of the tensioning reversing roller can tension and fix the plastic film, thereby preventing the plastic film at the input end from reversing and forming creases or folding during transportation. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a three-dimensional diagram of the first viewing angle of the device in the embodiment of the utility model;
[0022] Figure 2 It is a stereoscopic diagram of the second viewing angle of the device in the embodiment of the utility model.
[0023] In the picture:
[0024] 1. Frame;
[0025] 2. Folding group; 20. Mounting plate; 21. Positioning roller; 22. Mounting part; 23. Folding knife; 24. Support rod; 25. Seam knife;
[0026] 3. Guide group; 30. Guide knife; 31. Guide roller; DETAILED DESCRIPTION
[0027] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.
[0028] It should be noted that if the terms "first", "second", etc. are involved in the specification and claims of the present invention and the above-mentioned drawings, they are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate for the embodiments of the present invention described herein. In addition, if the terms "including" and "having" and any variations thereof are involved, it is intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0029] Furthermore, in this utility model, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.
[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0031] The following is combined with Figure 1-2 The utility model is described in further detail.
[0032] Example
[0033] like Figure 1 、 Figure 2 As shown, a sealed bag turning mechanism includes a frame 1, a folding group 2, and a guiding group 3.
[0034] The folding group 2 is arranged on the frame 1, and the folding group 2 includes two mounting plates 20 arranged opposite to each other on the frame 1. Two positioning rollers 21 with roller surfaces abutting against each other to form a pressure on the sealed bag are arranged side by side and parallel between the two mounting plates 20. A reversing tensioning roller is also arranged between the two mounting plates 20. The axis of the reversing tensioning roller is located between the two positioning rollers 21, and the reversing tensioning roller is located on the side of the positioning roller 21 close to the frame 1. A seam knife 25 abutting against the sealed bag is also suspended between the two positioning rollers 21, and one end of the seam knife 25 is close to the contact seam of the two positioning rollers 21. The axis of the seam knife 25 is inclined in the flipping direction of the sealed bag to form an angle with the plane of the two positioning rollers 21.
[0035] The guide group 3 is arranged on the frame 1 and is located in the discharge direction of the folding group 2. The guide group 3 includes a folding knife 23 and a support rod 24. The support rod 24 is fixedly arranged on the frame 1. One end of the folding knife 23 is located between the two positioning rollers 21, and the end of the folding knife 23 away from the positioning roller 21 is arranged at the end of the support rod 24 away from the frame 1.
[0036] Two parallel positioning rollers 21 clamp and rotate the plastic film, which can prevent the plastic film from crossing and affecting the incoming direction without affecting the transmission of the plastic film. The setting of the tensioning reversing roller can tighten and fix the plastic film, thereby preventing the plastic film at the input end from reversing and forming creases or folding during transportation.
[0037] The sealed bag moves from the input direction to the output direction of the frame 1. The sealed bag passes over the two positioning rollers 21, enters between the two positioning rollers 21, and covers the reversing tensioning roller before being connected to the guide group 3 from above the two positioning rollers 21. The seam-stopping knife 25 abuts against the side of the sealed bag close to the frame 1, and the folding knife 23 is inserted between the two layers of sealed bags to form a guide limit. The setting of the seam-stopping knife 25 can assist in the flipping of the sealed bag, and can also assist in preventing the sealed bag from over-flipping and affecting the direction of the incoming material, and can also reduce creases.
[0038] A mounting portion 22 is further provided on one side of one of the mounting plates 20 away from the frame 1, and a mounting rod is provided on the mounting portion 22, and a seam-stopping knife 25 is provided on the mounting rod and is installed at an angle to the axial direction of the mounting rod; by installing the seam-stopping knife 25 at an angle through the mounting rod, the folding angle can be adjusted to a more actual platform height to avoid scratching or puncturing the sealed bag.
[0039] The guide group 3 further includes a plurality of guide rollers 31 arranged side by side. The guide rollers 31 are all arranged on the side of the support rod 24 away from the folding knife 23. The arrangement of the guide rollers 31 can better evenly fold the sealed bags.
[0040] The plurality of guide rollers 31 are evenly spaced apart from each other; the evenly spaced arrangement enables the sealed bag to be turned over more smoothly by operating inertia.
[0041] The guide group 3 further includes a guide knife 30 , which is horizontally arranged on the frame 1 and located at the output end of the plurality of guide rollers 31 ; the setting of the guide knife 30 can prevent the folding from occurring due to unsuccessful folding.
[0042] It should be noted that all features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can be combined in any manner.
[0043] In addition, the above-mentioned specific embodiments are merely illustrative. Those skilled in the art may devise various solutions based on the disclosure of this utility model, and such solutions fall within the scope of disclosure and the scope of protection of this utility model. Those skilled in the art should understand that the specification and drawings of this utility model are illustrative and do not constitute limitations of the claims. The scope of protection of this utility model is defined by the claims and their equivalents.
Claims
1. A sealed bag turnover mechanism, characterized in that: include: Frame (1); A folding group (2) is arranged on the frame (1), and the folding group (2) includes two mounting plates (20) arranged opposite to each other on the frame (1). Two positioning rollers (21) are arranged side by side and in parallel between the two mounting plates (20), and the roller surfaces abut against each other to form a pressure on the sealed bag. A reversing tensioning roller is also arranged between the two mounting plates (20), and the axis of the reversing tensioning roller is located between the two positioning rollers (21), and the reversing tensioning roller is located on the side of the positioning roller (21) close to the frame (1). A seam knife (25) is suspended between the two positioning rollers (21) and abuts against the sealed bag, and one end of the seam knife (25) is close to the contact seam of the two positioning rollers (21). The axis of the seam knife (25) is inclined in the flipping direction of the sealed bag and forms an angle with the plane of the two positioning rollers (21); A guide group (3) is arranged on the frame (1) and located in the discharging direction of the folding group (2), the guide group (3) comprises a folding knife (23) and a support rod (24), the support rod (24) is fixedly arranged on the frame (1), one end of the folding knife (23) is located between the two positioning rollers (21), and the end of the folding knife (23) away from the positioning rollers (21) is arranged at the end of the support rod (24) away from the frame (1).
2. A sealed bag turnover mechanism according to claim 1, characterized in that: The sealing bag moves from the input direction to the output direction of the frame (1), and the sealing bag passes between the two positioning rollers (21) and wraps the reversing tensioning roller, and is connected to the guide group (3) from above the two positioning rollers (21), wherein the seam knife (25) abuts against the side of the sealing bag close to the frame (1), and the folding knife (23) is inserted between the two layers of the sealing bag to form a guide limit.
3. The sealed bag turnover mechanism according to claim 1, characterized in that: A mounting portion (22) is further provided on one side of the mounting plates (20) away from the frame (1), a mounting rod is provided on the mounting portion (22), and the mounting rod is provided with the seam-stopping knife (25) installed at an angle to the axial direction of the mounting rod.
4. The sealed bag turning mechanism according to claim 1, characterized in that: The guide group (3) further comprises a plurality of guide rollers (31) arranged side by side, and the guide rollers (31) are all arranged on a side of the support rod (24) away from the folding knife (23).
5. The sealed bag turning mechanism according to claim 4, characterized in that: The plurality of guide rollers (31) are arranged at even intervals from each other.
6. The sealed bag turnover mechanism according to claim 1, characterized in that: The guide group (3) further comprises a guide knife (30), wherein the guide knife (30) is horizontally arranged on the frame (1) and is located at the output end of a plurality of guide rollers (31).