Packaging bag folding mechanism

Abstract

The utility model relates to the technical field of bag folding mechanisms, and particularly discloses a packaging bag folding mechanism which comprises a base, symmetrical electric push rods are fixedly installed on the two sides of the base, symmetrical movable openings are formed in the base, movable blocks are arranged on the movable openings in a sliding mode, and the movable blocks are connected with the electric push rods in a sliding mode. The ends of output shafts of the electric push rods are fixedly installed on the side edges of movable blocks correspondingly, frames are arranged on the movable blocks correspondingly, movable plates are hinged to the frames correspondingly, a transverse plate is arranged over the base, symmetrical inclined plates are fixedly installed on the two sides of the transverse plate, and the top edges of the movable plates are hinged to the side edges of the tops of the inclined plates correspondingly. According to the packaging bag folding mechanism, the packaging bag folding effect can be improved, the phenomenon that folding marks are not clear is reduced, and the packaging bag folding mechanism is simple in overall structure and high in practicability.

Description

Technical Field

[0001] This utility model belongs to the technical field of bag folding mechanisms, and in particular relates to a bag folding mechanism for packaging bags. Background Technology

[0002] A bag folding mechanism is a device used to fold the sides or top of a bag. It is usually used in conjunction with heat sealing or gluing processes to achieve a seal and is commonly found in packaging production lines in the food and daily chemical industries.

[0003] Existing packaging bag folding mechanisms often fail to provide sufficient and stable folding force when folding packaging bags. Insufficient force prevents the packaging bag from being fully compressed during the folding process, resulting in shallow and blurry creases that are difficult to achieve a clear and neat folding effect, thus affecting the folding quality. Therefore, an improvement is needed. To address this, a new packaging bag folding mechanism is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a packaging bag folding mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a packaging bag folding mechanism, comprising a base, on both sides of which are fixedly installed symmetrical electric push rods, and on the base are symmetrical movable openings, on which movable blocks are slidably disposed. The output shaft ends of the electric push rods are respectively fixedly installed to the sides of the movable blocks, and each movable block is provided with a frame, on which a movable plate is hingedly installed. A horizontal plate is provided directly above the base, and on both sides of the horizontal plate are fixedly installed symmetrical inclined plates. The top edges of the movable plates are respectively hinged to the top sides of the inclined plates. The inclined plates are made of elastic metal material, and clamping rods are fixedly installed on the top edges of the inclined plates.

[0006] As a further description of the above solution: by setting up a base, electric push rod, movable opening, movable block, frame, movable plate, horizontal plate, inclined plate, and the cooperation between clamping rods, the folding effect of packaging bags can be improved, and the phenomenon of unclear creases can be reduced. The overall structure of the device is simple and highly practical.

[0007] Preferably, the clamping rod is circular;

[0008] As a further description of the above solution: the clamping bar is set to be circular, which can ensure the stability of the packaging bag during folding.

[0009] Preferably, a pad is fitted onto the surface of the clamping rod, and the pad is made of rubber.

[0010] As a further description of the above solution: the clamping bar is fitted with a rubber pad, which can protect the packaging bag when it is folded.

[0011] Preferably, the movable block has an opening, the size of which is adapted to the size of the frame, and the movable block and the frame are provided with fixing components.

[0012] As a further description of the above solution: the installation of the socket, frame, and fasteners allows for easy replacement of inclined plates of different sizes, improving the applicability of the device.

[0013] Preferably, the fastener includes a mounting port on the side of the movable block located at the insertion port, a spring disposed in the mounting port, a fixing block slidably disposed on the mounting port, and a fixing port on the side of the frame.

[0014] As a further description of the above scheme: the components within the fastener are described.

[0015] Preferably, the two ends of the spring are fixedly installed to the movable block and the fixed block respectively, and the spring is pressed between the movable block and the fixed block. The fixed block and the fixing opening are set as matching arc surfaces.

[0016] As a further description of the above scheme: the connection relationship and shape of the components within the fastener are described.

[0017] In summary, compared with the prior art, the beneficial effects of this utility model are: by setting up a base, electric push rod, movable opening, movable block, frame, movable plate, horizontal plate, inclined plate, and the cooperation between clamping rods, the folding effect of packaging bags can be improved, the phenomenon of unclear creases can be reduced, the overall structure of the device is simple and highly practical. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a structural diagram of the frame, movable plate, horizontal plate, and inclined plate of this utility model;

[0020] Figure 3 This is a structural diagram of the base and movable block of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 This is a structural diagram of the fastener of this utility model.

[0023] Legend:

[0024] 1. Base; 2. Electric push rod; 3. Movable opening; 4. Movable block; 5. Frame; 6. Movable plate; 7. Horizontal plate; 8. Inclined plate; 9. Clamping rod; 10. Insertion port; 11. Fixing component; 111. Mounting port; 112. Spring; 113. Fixing block; 114. Fixing port. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 This utility model provides a technical solution:

[0027] A packaging bag folding mechanism includes a base 1, on which symmetrical electric push rods 2 are fixedly installed on both sides. The base 1 has symmetrical movable openings 3, and movable blocks 4 are slidably arranged on each movable opening 3. The output shaft ends of the electric push rods 2 are fixedly installed to the sides of the movable blocks 4 respectively. Each movable block 4 is provided with a frame 5, and a movable plate 6 is hinged to each frame 5. A horizontal plate 7 is provided directly above the base 1, and symmetrical inclined plates 8 are fixedly installed on both sides of the horizontal plate 7. The top edges of the movable plates 6 are respectively hinged to the top sides of the inclined plates 8. The inclined plates 8 are made of elastic metal material, and clamping rods 9 are fixedly installed on the top edges of the inclined plates 8.

[0028] In use, the base 1 is used to install and support the entire device. When the packaging bag needs to be folded, the electric push rod 2 is activated, and its output shaft pushes the movable block 4 to slide in the movable opening 3. The movement of the movable block 4 causes the frame 5 on it to move. The movement of the frame 5 causes the movable plate 6 hinged to it to deflect. The deflection of the movable plate 6 causes the inclined plate 8 to be subjected to force. Since the inclined plate 8 is made of elastic metal, it will undergo a certain elastic deformation under the force of the movable plate 6, causing the clamping rods 9 on the top edge of the inclined plate 8 to move away from each other. The folded packaging bag passes between the two sets of clamping rods 9. The elastic restoring force of the two sets of clamping rods 9 and the inclined plate 8 clamps the packaging bag and strengthens the folding. This packaging bag folding mechanism can improve the folding effect of the packaging bag and reduce the phenomenon of unclear creases. The overall structure of the device is simple and highly practical.

[0029] Clamp 9 is designed to be circular;

[0030] When folding the packaging bag, the circular clamping rod 9 contacts the packaging bag. Because the circular structure is subjected to force more evenly in all directions, when the clamping rod 9 clamps the packaging bag, it can apply force evenly from all directions, avoiding the packaging bag folding effect from being worse due to uneven local force.

[0031] A pad is fitted onto the surface of the clamping rod 9, and the pad is made of rubber.

[0032] When the clamping rod 9 clamps and folds the packaging bag, the rubber pad on the surface of the clamping rod 9 first comes into contact with the packaging bag. This prevents the clamping rod 9 from making direct hard contact with the surface of the packaging bag when pressure is applied, thus preventing the clamping rod 9 from leaving indentations or scratches on the surface of the packaging bag. This protects the packaging bag and ensures its integrity. At the same time, the elasticity of the rubber pad also helps to better fit the packaging bag during the folding process, improving the folding effect.

[0033] The movable block 4 has an opening 10, the size of which is adapted to the size of the frame 5. The movable block 4 and the frame 5 are provided with fixing members 11. The fixing member 11 includes an installation port 111 on the side of the movable block 4 located at the opening 10, a spring 112 disposed in the installation port 111, a fixing block 113 slidably disposed on the installation port 111, and a fixing port 114 on the side of the frame 5. The two ends of the spring 112 are fixedly installed to the movable block 4 and the fixing block 113 respectively, and the spring 112 is pressed between the movable block 4 and the fixing block 113. The fixing block 113 and the fixing port 114 are set as matching arc surfaces.

[0034] When the frame 5 needs to be installed onto the movable block 4, the frame 5 is aligned with the insertion port 10 on the movable block 4 and inserted. During insertion, the side of the frame 5 presses against the fixing block 113, causing the fixing block 113 to slide into the mounting port 111 against the elastic force of the spring 112. When the frame 5 is fully inserted into the insertion port 10, the mounting port 111 is aligned with the fixing port 114. The elastic restoring force of the spring 112 causes the fixing block 113 to pop out and engage with the fixing port 114 on the side of the frame 5. Since the fixing block 113 and the fixing port 114 are designed with matching arc surfaces, they can fit tightly together, thus firmly fixing the frame 5 onto the movable block 4. When disassembling, simply push the frame 5 with force, and the fixing block 113 will automatically retract and disengage from the fixing port 114, allowing the frame 5 to be removed from the insertion port 10. This facilitates the installation and disassembly of the frame 5, makes it convenient to maintain or replace the frame 5, and improves the applicability of the device.

[0035] Working principle:

[0036] In use, the base 1 is used to install and support the entire device. When the packaging bag needs to be folded, the electric push rod 2 is activated, and its output shaft pushes the movable block 4 to slide in the movable opening 3. The movement of the movable block 4 causes the frame 5 on it to move. The movement of the frame 5 causes the movable plate 6 hinged to it to deflect. The deflection of the movable plate 6 causes the inclined plate 8 to be subjected to force. Since the inclined plate 8 is made of elastic metal, it will undergo a certain elastic deformation under the force of the movable plate 6, causing the clamping rods 9 on the top edge of the inclined plate 8 to move away from each other. The folded packaging bag passes between the two sets of clamping rods 9. The elastic restoring force of the two sets of clamping rods 9 and the inclined plate 8 clamps the packaging bag and strengthens the folding. This packaging bag folding mechanism can improve the folding effect of the packaging bag and reduce the phenomenon of unclear creases. The overall structure of the device is simple and highly practical.

[0037] in,

[0038] When folding the packaging bag, the circular clamping rod 9 contacts the packaging bag. Because the circular structure is subjected to force more evenly in all directions, when the clamping rod 9 clamps the packaging bag, it can apply force evenly from all directions, avoiding the packaging bag folding effect from being worse due to uneven local force.

[0039] When the clamping rod 9 clamps and folds the packaging bag, the rubber pad on the surface of the clamping rod 9 first comes into contact with the packaging bag. This prevents the clamping rod 9 from making direct hard contact with the surface of the packaging bag when pressure is applied, thus preventing the clamping rod 9 from leaving indentations or scratches on the surface of the packaging bag. This protects the packaging bag and ensures its integrity. At the same time, the elasticity of the rubber pad also helps to better fit the packaging bag during the folding process, improving the folding effect.

[0040] When the frame 5 needs to be installed onto the movable block 4, the frame 5 is aligned with the insertion port 10 on the movable block 4 and inserted. During insertion, the side of the frame 5 presses against the fixing block 113, causing the fixing block 113 to slide into the mounting port 111 against the elastic force of the spring 112. When the frame 5 is fully inserted into the insertion port 10, the mounting port 111 is aligned with the fixing port 114. The elastic restoring force of the spring 112 causes the fixing block 113 to pop out and engage with the fixing port 114 on the side of the frame 5. Since the fixing block 113 and the fixing port 114 are designed with matching arc surfaces, they can fit tightly together, thus firmly fixing the frame 5 onto the movable block 4. When disassembling, simply push the frame 5 with force, and the fixing block 113 will automatically retract and disengage from the fixing port 114, allowing the frame 5 to be removed from the insertion port 10. This facilitates the installation and disassembly of the frame 5, makes it convenient to maintain or replace the frame 5, and improves the applicability of the device.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A bag folding mechanism for a packaging bag, comprising a base (1), characterized in that The base (1) has symmetrical electric push rods (2) fixedly installed on both sides. The base (1) has symmetrical movable openings (3). Movable blocks (4) are slidably installed on each of the movable openings (3). The output shaft ends of the electric push rods (2) are fixedly installed to the sides of the movable blocks (4). Each movable block (4) has a frame (5). Each frame (5) has a movable plate (6) hinged to it. A horizontal plate (7) is set directly above the base (1). Symmetrical inclined plates (8) are fixedly installed on both sides of the horizontal plate (7). The top edge of the movable plate (6) is hinged to the top side of the inclined plate (8). The inclined plate (8) is made of elastic metal material. Each inclined plate (8) has a clamping rod (9) fixedly installed on its top edge.

2. A bag folding mechanism according to claim 1, wherein The clamp (9) is circular.

3. A bag folding mechanism according to claim 2, wherein A pad is fitted on the surface of the clamp (9), and the pad is made of rubber.

4. The bag folding mechanism of claim 1 wherein, The movable block (4) is provided with an insertion port (10), the size of which is adapted to the size of the frame (5), and the movable block (4) and the frame (5) are provided with fasteners (11).

5. A bag folding mechanism according to claim 4, wherein The fastener (11) includes a mounting port (111) opened on the side of the movable block (4) located at the socket (10), a spring (112) disposed in the mounting port (111), a fixing block (113) slidably disposed on the mounting port (111), and a fixing port (114) opened on the side of the frame (5).

6. A bag folding mechanism according to claim 5, wherein The two ends of the spring (112) are fixedly installed on the movable block (4) and the fixed block (113) respectively, and the spring (112) is pressed between the movable block (4) and the fixed block (113). The fixed block (113) and the fixed opening (114) are set as matching arc surfaces.

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