Plastic bag pressing mechanism

By setting a pressing mechanism on the robotic arm, including a frame, a slide, and a pressure plate, the displacement problem of the plastic bag during the robotic arm's reciprocating process is solved, achieving stable clamping and pressing, and ensuring the stability and accuracy of the plastic bag folding.

CN223777958UActive Publication Date: 2026-01-09嘉兴海强机械科技有限公司
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Patent Information

Application Number
CN202520176333.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-27
Publication Date
2026-01-09
Estimated Expiration
2035-01-27

AI Technical Summary

Technical Problem

In existing plastic bag folding mechanisms, the plastic bag is prone to displacement during the reciprocating motion of the robotic arm, resulting in unstable folding. The pressing mechanism needs to be improved to ensure stable clamping and pressing.

Method used

A pressing mechanism is set on the robotic arm, including a frame, a slide, a pressure plate and a drive mechanism. The pressure plate is set in the slide and moves with the lifting platform through pulleys to achieve stable clamping and pressing.

Benefits of technology

It achieves stable gripping and pressing of plastic bags during the robotic arm's reciprocating motion, ensuring the stability and accuracy of the plastic bags during the folding process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastic bag manufacturing, in particular to a plastic bag pressing mechanism which is used for being arranged on a mechanical arm of a plastic bag folding machine to press and connect plastic bags, the mechanical arm reciprocates on a rack of the folding machine, and the pressing mechanism comprises a frame body. A sliding groove is formed in the frame body, and one side of the sliding groove inclines downwards. A pressing plate is arranged in the sliding groove. The frame body is further provided with a driving mechanism for pushing the pressing plate to the inclined end of the sliding groove. A base plate is arranged on the frame body and located on the lower side of the pressing plate.
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Description

TECHNICAL FIELD

[0001] The utility model relates to plastic bag manufacturing technical field especially relates to a plastic bag down -pressing mechanism. BACKGROUND

[0002] Plastic bag folding machine needs to be set up in the reciprocating between different stations under the traction of mechanical hand, sets up the temporary lifting platform on the folding mechanism, is used for the non -folding part of temporary plastic bag, then carries out the folding to the non -placed plastic bag part on the lifting platform, needs to carry out the pressing to the part of plastic bag on the lifting platform in this process to ensure that other parts folding does not make the displacement of plastic bag.

[0003] Generally, the mechanical hand of plastic bag folding machine has a plastic bag folding mechanism, and a plastic bag pressing mechanism is also needed above the plastic bag lifting platform to ensure the pressing effect of plastic bag. UTILITY MODEL CONTENTS

[0004] The utility model provides a plastic bag down -pressing mechanism for the above -mentioned technical deficiency, sets up the down -pressing mechanism on the mechanical hand, not only can form the cooperation with the backing plate on the mechanical hand and realize the reciprocating on the plastic bag folding machine to plastic bag conveying, and the down -pressing mechanism can also cooperate with the lifting platform, when the other parts of plastic bag are folded, the pressing to plastic bag can be realized through the cooperation of the down -pressing mechanism and the lifting platform, and the down -pressing mechanism still keeps the pressing with the backing plate on the mechanical hand even if the lifting platform drops under the condition that the down -pressing mechanism does not change the action, realizes the stable clamping or pressing of plastic bag.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is that: the down -pressing mechanism is used for setting on the mechanical hand of plastic bag folding machine and pressing plastic bag, the mechanical hand reciprocates on the folding machine frame, the down -pressing mechanism includes the frame body, the frame body is provided with a sliding groove which is inclined downward, the sliding groove is provided with a pressing plate, the frame body is further provided with a driving mechanism which pushes the pressing plate to the inclined end of the sliding groove, and the frame body is provided with a backing plate below the pressing plate.

[0006] Further optimize the technical scheme, the first pressing area for pressing plastic bag is formed between the pressing plate and the backing plate, the lifting plate is set on the plastic bag folding machine, and the second pressing area is formed between the pressing plate and the lifting plate.

[0007] Further optimize the technical scheme, the pressing plate is slidably arranged in the sliding groove through two groups of pulleys, and the sliding groove includes two parts of the flat part and the inclined part which are communicated.

[0008] Further optimization of the technical scheme, the pressing plate slides in the flat part, the pressing plate is inclined to the side of the plate surface, when the pressing plate slides to the inclined part, the side of the plate surface of the pressing plate is inclined to the downward.

[0009] Further optimization of the technical scheme, when the pressing plate slides to the inclined part, the pressing plate is partially overlapped with the base plate and partially overlapped with the lifting plate in the vertical direction.

[0010] Further optimization of the technical scheme, the driving mechanism is a rodless cylinder.

[0011] Compared with the prior art, the utility model has the advantages that the lower pressing mechanism is arranged on the mechanical hand, which not only ensures that the lower pressing mechanism cooperates with the base plate on the mechanical hand to realize the feeding of the plastic bag on the plastic bag folding machine, but also cooperates with the lifting platform to realize the pressing of the plastic bag when the other part of the plastic bag is folded, and even if the lifting platform is lowered, the lower pressing mechanism still cooperates with the base plate on the mechanical hand to realize the stable clamping or pressing of the plastic bag. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a whole structure schematic view of a plastic bag lower pressing mechanism.

[0013] Figure 2 It is a mechanical hand structure schematic view of a plastic bag lower pressing mechanism.

[0014] Figure 3 It is a structure schematic view of a pressing plate of a plastic bag lower pressing mechanism in the inclined part.

[0015] Figure 4 It is a structure schematic view of a pressing plate of a plastic bag lower pressing mechanism in the flat part.

[0016] In the drawing: 1, plastic bag folding machine; 2, mechanical hand; 3, rack; 4, frame body; 5, sliding groove; 6, pressing plate; 7, driving mechanism; 8, base plate; 9, lifting plate; 12, flat part; 13, inclined part. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model more clear and explicit, the utility model is further explained in detail below in combination with specific implementation manners and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0018] DETAILED DESCRIPTION: COMBINATION Figures 1-4As shown, the plastic bag pressing mechanism is arranged on the mechanical arm 2 of the plastic bag folding machine 1, and is used for pressing the plastic bag, the mechanical arm 2 reciprocates on the folding machine rack 3, the pressing mechanism comprises a frame body 4, a chute 5 is arranged on the frame body 4 and is arranged obliquely downward, a pressing plate 6 is arranged in the chute 5, a driving mechanism 7 is further arranged on the frame body 4 and is used for driving the pressing plate 6 to slide to the oblique end of the chute 5, a pad plate 8 is arranged on the frame body 4 and is located below the pressing plate 6, a first pressing area for pressing the plastic bag is formed between the pressing plate 6 and the pad plate 8, a lifting plate 9 is arranged on the plastic bag folding machine 1, a second pressing area is formed between the pressing plate 6 and the lifting plate 9, the pressing plate 6 is slidably arranged in the chute 5 through two groups of pulleys, the chute 5 comprises a flat part 12 and an inclined part 13 which are communicated, when the pressing plate 6 slides in the flat part 12, one side of the plate surface of the pressing plate 6 is arranged obliquely upward, when the pressing plate 6 slides to the inclined part 13, one side of the plate surface of the pressing plate 6 is rotated to be arranged obliquely downward, when the pressing plate 6 slides to the inclined part 13, the pressing plate 6 is coincident with the pad plate 8 in the vertical direction and is coincident with the lifting plate 9 in part, and the driving mechanism 7 is a rodless cylinder.

[0019] In combination Figures 1-4 As shown, when the mechanical arm 2 reciprocates, the first pressing area formed between the pressing plate 6 and the pad plate 8 on the lower side clamps the plastic bag, so that the plastic bag can be transported on the folding machine, when the folding of the non-lifting platform area is needed, the mechanical arm 2 transfers the plastic bag to the corresponding position, so that the lower side of the pressing plate 6 is coincident with the projection position of the pad plate 8 in part and is coincident with the projection position of the lifting platform in part, the second pressing area formed between the lower side of the pressing plate 6 and the lifting platform clamps the plastic bag, so that the plastic bag on the non-lifting platform can be stably folded, after the folding is completed, the lifting platform is lowered, the second pressing area releases the clamping of the plastic bag, so that the mechanical arm 2 can reciprocate to transport the plastic bag on the plastic bag folding machine 1.

[0020] The control mode of the utility model is automatic control through the controller, the control circuit of the controller can be realized through simple programming of the person skilled in the art, and it is the common knowledge in the field, and the utility model is mainly used for protecting the mechanical arrangement, so the control mode and the circuit connection of the utility model will not be explained in detail.

[0021] It should be understood that the above specific embodiments of the utility model are only used for example or explanation of the principle of the utility model, and do not constitute the limitation of the utility model. Therefore, any modification, equivalent replacement, improvement, etc. made without deviating from the spirit and scope of the utility model shall be included in the protection scope of the utility model. In addition, the utility model claims are intended to cover all changes and modifications falling within the scope and boundary of the appended claims or the equivalent form of such scope and boundary.

Claims

1. A plastic bag pressing mechanism, wherein the pressing mechanism is used to press plastic bags on a robotic arm (2) of a plastic bag folding machine (1), the robotic arm (2) reciprocating on the frame (3) of the folding machine, characterized in that: The pressing mechanism includes a frame (4); a slide groove (5) with one side inclined downward is provided on the frame (4); a pressure plate (6) is provided in the slide groove (5); a drive mechanism (7) for pushing the pressure plate (6) to the inclined end of the slide groove (5) is also provided on the frame (4); a pad (8) is provided on the frame (4) below the pressure plate (6).

2. The plastic bag pressing mechanism according to claim 1, characterized in that: A first pressing area for pressing plastic bags is formed between the pressing plate (6) and the pad plate (8). A lifting plate (9) is provided on the plastic bag folding machine (1), and a second pressing area is formed between the pressing plate (6) and the lifting plate (9).

3. The plastic bag pressing mechanism according to claim 2, characterized in that: The pressure plate (6) is slidably disposed in the slide groove (5) by two sets of pulleys; the slide groove (5) includes two connected parts: a flat part (12) and an inclined part (13).

4. The plastic bag pressing mechanism according to claim 3, characterized in that: When the pressure plate (6) slides in the flat part (12), one side of the plate surface of the pressure plate (6) is inclined upward. When the pressure plate (6) slides to the inclined part (13), one side of the plate surface of the pressure plate (6) is rotated to be inclined downward.

5. The plastic bag pressing mechanism according to claim 4, characterized in that: When the pressure plate (6) slides to the inclined part (13), the pressure plate (6) partially overlaps with the pad (8) in the vertical direction and partially overlaps with the lifting plate (9).

6. The plastic bag pressing mechanism according to any one of claims 1-5, characterized in that: The drive mechanism (7) is a rodless cylinder.