Inserting plate mechanism for folding plastic bag
Through the dual plug-in mechanism and socket design, the deformation and displacement of the plastic bag during the folding process is solved, and the smooth conveying of the plastic bag without additional pressing is achieved, which improves the efficiency of the equipment and the folding quality of the plastic bag.
Patent Information
- Application Number
- CN202422516203.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-17
AI Technical Summary
Existing plastic bags are prone to deformation and displacement during folding, especially when folding both sides to the middle, the lack of effective auxiliary pressing structure causes the plastic bag to be uneven when the insertion plate is fed into the bundling station.
The double insertion plate mechanism is adopted, and the insertion plate is cooperated with the folding plate with a socket to ensure that the upper folding plate is maintained in position. The insertion plate is inserted into the plastic bag conveying channel downward to avoid deformation caused by the retraction of the folding plate. At the same time, the pre-pressure and jack design of multiple insertion plates are used to stabilize the shape of the plastic bag.
It realizes that the plastic bags are kept flat without additional pressing structures, improves the folding quality and the efficiency of feeding into the bundling station, and simplifies the equipment structure.
Smart Images
Figure CN223223987U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic bag production, in particular to a plug-in mechanism for folding plastic bags. Background Art
[0002] When producing plastic bags, they need to be folded at the folding station using a folding plate, and then sent down to the strapping station through an insert plate. After the folding is completed and before the insert plate is inserted, since the folded plastic bags are prone to deformation and displacement, an additional auxiliary light-pressure structure is required to slightly press the folded plastic bags to ensure that they can be sent into the strapping mechanism through the insert plate even when the shape is inconvenient. The structure is relatively complicated.
[0003] Furthermore, the folding method of the plastic bag is related to the fact that a plastic bag folded in half has only one crease. Even without the use of auxiliary mechanisms, the bag will not deform or move much after the folding is complete. However, if the folding station is located in the middle and both sides of the bag are folded toward the middle, both sides will partially fold toward the middle, forming two creases. In this case, without the use of auxiliary mechanisms to gently press, the bag will be more likely to deform and move. Utility Model Content
[0004] The technical problem to be solved by the present invention is to address the above-mentioned technical deficiencies and provide a plug-in plate mechanism for folding plastic bags. The mechanism adopts a double plug-in plate mechanism in combination with a folding plate on one side. When the plug-in plates on both sides are folded toward the middle, the lower folding plate without the insertion hole is pulled out from the plastic bag laterally, while the upper folding plate with the insertion hole maintains the overall compression of the plastic bag, and then cooperates with the plug-in plate to send the folded plastic bag to the lower strapping station. By simplifying and removing the auxiliary compression structure of the plastic bag, the original folding plate and the plug-in plate are used to cooperate, thereby ensuring that the plastic bag is flat before being sent to the strapping station.
[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: it includes a frame; a folding station is provided on the frame, and folding plates are provided on both sides of the folding station on the frame; a plastic bag conveying channel is provided in the middle of the folding station, and a plug-in plate mechanism is provided on the frame at a position corresponding to the upper side of the folding station; the plug-in plate mechanism includes a plug-in plate arranged toward the plastic bag conveying channel; a driving mechanism for driving the plug-in plate to move downward; and a socket corresponding to the plug-in plate and the plastic bag conveying channel is provided on the folding plate on one side.
[0006] To further optimize the technical solution, there are at least two plug-in mechanisms, and the plurality of plug-in mechanisms are arranged along the length direction of the plastic bag conveying channel.
[0007] To further optimize the technical solution, no additional plastic bag pressing mechanism is provided on the upper side of the folding station.
[0008] To further optimize this technical solution, the driving mechanism is a cylinder.
[0009] To further optimize this technical solution, gaps are provided at intervals along the lower edge of the inserting plate.
[0010] To further optimize this technical solution, the folding plate provided with the insertion hole is a folding plate located on the upper side after the folding plates on both sides are folded toward the middle.
[0011] Compared with the prior art, the utility model has the following advantages: the pressure plate is combined with the folding plate with the insertion hole, so that the plastic bag can be transported to the bundling station along the plastic bag conveying channel in the middle of the folding station by inserting the pressure plate along the insertion hole without the need for the folding plate to be completely retracted. The folding plate is kept on the upper side of the plastic bag, which is also conducive to ensuring the stable pressing of the shape of the plastic bag. Furthermore, when multiple plug-in plate mechanisms are set, the folding quality of the plastic bag can be guaranteed by the pre-pressing of some of the plug-in plate mechanisms and the pressing during the withdrawal of the folding plate on the other side. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 The figure is a schematic diagram of the overall structure of a plug-in mechanism for folding plastic bags.
[0013] Figure 2 This is a side structural diagram of a plug-in mechanism for folding plastic bags.
[0014] Figure 3 The figure is a schematic cross-sectional view of a plug-in mechanism for folding plastic bags.
[0015] In the figure: 1. Frame; 2. Folding station; 3. Folding plate; 4. Plastic bag conveying channel; 5. Insertion plate mechanism; 6. Insertion plate; 7. Driving mechanism; 8. Insertion hole; 9. Notch. DETAILED DESCRIPTION
[0016] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.
[0017] Specific implementation method: Figure 1-3 As shown, a plate insertion mechanism for folding plastic bags includes a frame 1; a folding station 2 is provided on the frame 1, and folding plates 3 are provided on both sides of the folding station 2 on the frame 1; the folding plates 3 on both sides are driven by a driving assembly to realize sequential folding toward the folding station 2.
[0018] A plastic bag conveying channel 4 is provided in the middle of the folding station 2, and a plug-in mechanism 5 is provided on the frame 1 at a position corresponding to the upper side of the folding station 2; the plug-in mechanism 5 includes a plug-in plate 6 arranged toward the plastic bag conveying channel 4; a driving mechanism 7 for driving the plug-in plate 6 to move downward; a socket 8 corresponding to the plug-in plate 6 and the plastic bag conveying channel 4 is provided on the folding plate 3 on one side; there are at least two plug-in plate mechanisms 5, and multiple plug-in plate mechanisms 5 are arranged along the length direction of the plastic bag conveying channel 4; no additional plastic bag pressing mechanism is provided on the upper side of the folding station 2; the driving mechanism 7 is a cylinder; notches 9 are provided at intervals on the lower edge of the plug-in plate 6; the folding plate 3 with the socket 8 is the folding plate 3 located on the upper side after the folding plates 3 on both sides are folded toward the middle.
[0019] When used, combine Figure 1-3 As shown, the plastic bag is on the folding station 2 and moves toward the movable folding station 2 in sequence through the folding plates 3 on both sides. Then the folding plate 3 on the lower side moves back horizontally, and the folding plate 3 on the upper side remains on the upper side of the plastic bag.
[0020] In the original technical solution, after the folding plates 3 on both sides are retracted, the plastic bag is inserted downward along the plastic bag conveying channel 4 into the bundling station through the upper side insert plate 6.
[0021] However, in the improved solution of the present application, only the lower folding plate 3 is retracted, while the upper folding plate 3 maintains its position, ensuring that the folding state of the plastic bag does not change, avoiding the problem of the folded plastic bag being easily spread out or displaced and deformed when the upper folding plate 3 is retracted. At the same time, through the cooperation of the plug plate 6 and the plug hole 8, when the upper folding plate 3 is not retracted, the plastic bag is directly pressed downward into the plastic bag conveying channel 4 to reach the bundling station, avoiding the problem of the plastic bag spreading out.
[0022] When two sets of plug-in mechanisms 5 are used, the two sets of plug-in mechanisms 5 are inserted in sequence, avoiding the problem of uneven insertion and folding caused by the plastic bag being too hard after folding when a single plug-in mechanism 5 is inserted. The insertion of the first plug-in plate 6 of the two plug-in plates 6 is similar to pre-pressure or light pressure, and the plastic bag is completely inserted into the plastic bag conveying channel 4 when the second plug-in plate 6 is inserted. At the same time, the notch 9 set on the plug-in plate 6 also provides redundant activity space for the insertion process of the plastic bag, avoiding the problem that the folding quality of the plastic bag is affected by lack of activity space.
[0023] At the same time, during the folding process of the plastic bag, it is necessary to use the middle fixing plate (not shown in the figure) to press the middle of the plastic bag on the plastic bag folding station 2 in the middle, and then use the pressure plates on both sides to complete the folding of the plastic bag. Only after the middle fixing plate is withdrawn laterally can it be inserted downward into the plastic bag conveying channel 4 through the upper side plug-in plate 6. The traditional single plug-in plate 6 needs to be completely withdrawn from the middle fixing plate before it can be pressed down, which reduces work efficiency. At the same time, the withdrawal process of the middle fixing plate may also cause the plastic bag to shift. When the plug-in plate 6 is divided into two pieces, before the middle fixing plate is withdrawn laterally, an plug-in plate 6 in the opposite direction of the withdrawal can be inserted to pre-fix the plastic bag. Then, after the middle fixing plate is completely withdrawn laterally, the other plug-in plate 6 is inserted down. At this time, the two plug-in plates 6 are inserted down at the same time to further insert the plastic into the plastic bag conveying channel 4.
[0024] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field, which is common knowledge in the field. Moreover, the present invention is mainly used to protect mechanical settings, so the control method and circuit connection are no longer explained in detail in the present invention.
[0025] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.
Claims
1. A plate inserting mechanism for folding plastic bags, comprising a frame (1); a folding station (2) is provided on the frame (1); folding plates (3) are provided on both sides of the folding station (2) on the frame (1); a plastic bag conveying channel (4) is provided in the middle of the folding station (2), and is characterized in that: A plate inserting mechanism (5) is provided on the frame (1) at a position corresponding to the upper side of the folding station (2); the plate inserting mechanism (5) comprises a plate inserting mechanism (6) arranged toward the plastic bag conveying passage (4); a driving mechanism (7) for driving the plate inserting mechanism (6) to move downward; and a socket (8) corresponding to the plate inserting mechanism (6) and the plastic bag conveying passage (4) is provided on one side of the folding plate (3).
2. A plastic bag folding plate mechanism according to claim 1, characterized in that: There are at least two of the plate inserting mechanisms (5), and the plurality of plate inserting mechanisms (5) are arranged along the length direction of the plastic bag conveying channel (4).
3. The plastic bag folding plate mechanism according to claim 2, characterized in that: No additional plastic bag pressing mechanism is provided on the upper side of the folding station (2).
4. The plastic bag folding plate mechanism according to claim 2, characterized in that: The driving mechanism (7) is a cylinder.
5. The plastic bag folding plate mechanism according to claim 2, characterized in that: Notches (9) are provided at intervals along the lower edge of the inserting plate (6).
6. The plastic bag folding plate mechanism according to claim 2, characterized in that: The folding plate (3) provided with the insertion hole (8) is the folding plate (3) located on the upper side after the folding plates (3) on both sides are folded toward the middle.