Push-through bagger

Abstract

The utility model discloses a kind of push press type bagging machines, including rack and the conveying mechanism, bagging mechanism, bag folding plate and sealing mechanism being set on rack, bag folding plate is located behind bagging mechanism along conveying direction, still include pushing mechanism, pushing mechanism includes pushing drive part and pushing plate, pushing plate and bag folding plate are respectively arranged in the lateral two sides of conveying mechanism and oppositely set, pushing plate is connected with pushing drive part, the passage for packaging bag is formed between pushing plate and bag folding plate, when working, pushing drive part drives the pushing plate to bag folding plate activity, so that bag mouth side material is bent in close to tongue portion before sealing.The utility model is matched with the lateral of pushing plate and bag folding plate, packaging bag is pushed to bag folding plate side before sealing, eliminate the gap between material and tongue portion, improve the tightness of packaging after sealing.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, specifically to a push-type bagging machine. Background Technology

[0002] A bagging machine is an automated device used to fill materials into packaging bags and fold and seal the bag opening. It is widely used in the food, daily chemical, and pharmaceutical industries. Existing bagging machines typically include a conveying mechanism, a bagging mechanism, a folding plate, and a sealing mechanism. After being filled, the packaging bag is conveyed forward by the conveying mechanism, the folding plate folds the flap of the packaging bag, and then the sealing mechanism completes the sealing.

[0003] In the prior art, Chinese utility model patent with publication number CN224131492U discloses an automatic bagging device, including a bag conveyor belt with adsorption holes and a negative pressure seat corresponding to the conveyor belt. The negative pressure seat contains a negative pressure chamber connected to a negative pressure machine. The negative pressure seat has a negative pressure groove communicating with the negative pressure chamber. The adsorption holes can be aligned with the negative pressure groove, and the packaging bag is adsorbed onto the bag conveyor belt through negative pressure adsorption, ensuring the stability of the packaging bag's position during transport. The device also has an adhesive applicator and a folding plate on both sides of the bag opening component. The folding plate can squeeze and fold the already adhesive tongue upwards. A pusher is provided on one side of the folding plate, which can push the folded tongue downwards to adhere to the outer wall of the packaging bag, thus sealing the bag. At the corresponding pusher, a second pressure plate is set above the bag conveyor belt. The second pressure plate descends and squeezes the packaging bag to expel excess air from inside the bag. Then, the pusher is controlled to complete the sealing.

[0004] While the aforementioned existing technologies achieve automatic bagging and sealing of packaging bags, the folding plate and pushing component act on the already glued tongue of the packaging bag. The purpose of the pushing component is to fold the folded tongue downwards for adhesion. In actual use, after the packaging bag is bagged, there is usually a certain gap between the material inside the bag and the folding plate. This causes part of the tongue to be unable to be bent by the folding plate. When the sealing mechanism bends and seals the tongue, the tongue folds and adheres along the bending position. As a result, after sealing, this gap remains between the material inside the packaging bag and the tongue. This leads to a loose appearance of the packaging bag, easy movement of the internal material, and affects the tightness of the packaging and the overall packaging quality. Utility Model Content

[0005] The purpose of this utility model is to provide a push-type bagging machine. By setting a pushing mechanism that is laterally opposite to the folding plate, the packaging bag is pushed laterally to one side of the folding plate before sealing, so that both ends of the material abut against the folding plate and the pushing plate respectively, eliminating the gap between the material and the bag opening, thereby improving the tightness of the sealed packaging.

[0006] The technical solution adopted by this utility model to solve its technical problem is: A push-type bagging machine includes a frame and a conveying mechanism, a bagging mechanism, a bag folding plate, and a sealing mechanism mounted on the frame. The bag folding plate is located behind the bagging mechanism along the conveying direction. The machine also includes a pushing mechanism, which comprises a pushing drive and a pushing plate. The pushing plate and the bag folding plate are respectively located on opposite sides of the conveying mechanism and are connected to the pushing drive. A channel for the packaging bag to pass through is formed between the pushing plate and the bag folding plate. During operation, the pushing drive drives the pushing plate to move towards the bag folding plate, causing the material at the bag opening to approach the bent tongue before sealing. By pushing the packaging bag laterally towards the bag folding plate, the end of the material abuts against the bag folding plate, eliminating the lateral gap between the material inside the bag and the tongue, resulting in a tighter seal after sealing.

[0007] Preferably, the pushing mechanism further includes a pushing frame, which is disposed on one side of the conveying mechanism, and the pushing drive is disposed on the pushing frame. The pushing frame provides a stable mounting base for the pushing drive, and the lateral pushing action of the pushing plate is smooth and reliable.

[0008] Preferably, the end of the folding plate facing the bag-covering mechanism has a guide surface, which is a smoothly transitioned arc-shaped surface or a slope; the top of the folding plate has a clearance opening. The guide surface allows the tongue to be smoothly and gradually lifted and bent, and the clearance opening provides working space for the sealing push plate.

[0009] Preferably, the sealing mechanism is located downstream of the folding plate and includes a sealing push plate and a sealing drive component. The sealing drive component drives the sealing push plate to move horizontally along a direction perpendicular to the conveying direction. The sealing push plate is located at the clearance opening and has a sealing brush at its lower end. The sealing brush cooperates with the clearance opening, allowing the tongue to fold and seal under the combined support of the folding plate and the sealing push plate.

[0010] Preferably, the system also includes a bag-pressing mechanism, which is located above the conveying mechanism and corresponds to the sealing mechanism. The bag-pressing mechanism includes a bag-pressing plate and a first driving component. The bag-pressing plate is vertically and vertically mounted on the frame via the first driving component. When the bag-pressing plate descends, it presses down on the packaging bag, compacting the material inside and preventing material movement during sealing.

[0011] Preferably, the bag-pressing mechanism further includes two bag-pressing strips, a second driving member, and a third driving member. The two bag-pressing strips are respectively disposed on the front and rear sides of the sealing mechanism along the conveying direction. Each bag-pressing strip is translated along the conveying direction by its corresponding second driving member, and each bag-pressing strip is raised and lowered by its corresponding third driving member. Before sealing, the two bag-pressing strips descend to press down on the bag opening. After sealing, they are pulled out from between the bag body and the tongue along the conveying direction and reset. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a structural schematic diagram from another perspective of an embodiment of the present utility model; Figure 3 This is a utility model Figure 2 Enlarged view of point A; Figure 4 This is a schematic diagram of the sealing mechanism of the traditional sealing method of this utility model; Figure 5 This is a sealing schematic diagram of the sealing mechanism according to an embodiment of the present utility model.

[0013] In the diagram: 1. Frame; 2. Conveying mechanism; 21. Conveyor belt; 22. Adsorption hole; 23. Suction chamber; 3. Bag-making mechanism; 4. Bag folding plate; 41. Guide surface; 42. Clearing opening; 5. Pushing mechanism; 51. Pushing frame; 52. Pushing drive component; 53. Pushing plate; 6. Sealing mechanism; 61. Sealing push plate; 62. Sealing drive component; 63. Sealing brush; 7. Bag pressing mechanism; 71. Bag pressing plate; 72. First drive component; 73. Bag pressing strip; 74. Second drive component; 75. Third drive component; 8. Packaging bag; 81. Tongue; 9. Material. Detailed Implementation

[0014] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0015] Example: Figures 1 to 5 A push-type bagging machine is shown, including a frame 1 and a conveying mechanism 2, a bagging mechanism 3, a bag folding plate 4, a material pushing mechanism 5, a sealing mechanism 6, and a bag pressing mechanism 7 disposed on the frame 1.

[0016] The conveying mechanism 2 is used to carry and transport the packaging bag 8. The conveying mechanism 2 can be a conventional belt conveyor or chain conveyor. In this embodiment, the conveying mechanism 2 includes a conveyor belt 21 with multiple adsorption holes 22 on its surface and a suction chamber 23 below it. The suction chamber 23 is connected to a negative pressure generating device (not shown in the figure) via a pipeline. The negative pressure generating device can be a centrifugal fan or a vacuum pump. When the negative pressure generating device is working, it generates negative pressure in the suction chamber 23, which in turn generates negative pressure at the adsorption holes 22 on the surface of the conveyor belt 21, adsorbing the packaging bag 8 onto the surface of the conveyor belt 21 and preventing the packaging bag 8 from shifting or sliding during transport. When the pusher plate 53 pushes the packaging bag 8 laterally, the negative pressure generating device stops working or reduces its output power, causing the adsorption force at the adsorption holes 22 to disappear or decrease, so that the packaging bag 8 can be smoothly pushed laterally.

[0017] The bagging mechanism 3 is located on one side of the starting end of the conveying mechanism 2. The bagging mechanism 3 is a conventional bagging device in the prior art, used to fill the material 9 into the packaging bag 8. The specific structure and working principle of the bagging mechanism 3 are common knowledge in the field and will not be described in detail here.

[0018] The folding plate 4 is a fixed structure, fixedly installed on the frame 1, and located behind the bagging mechanism 3 along the conveying direction. The end of the folding plate 4 facing the bagging mechanism 3 has a guide surface 41, which is a smoothly transitioned arc-shaped surface or a slope. The top of the folding plate 4 has a clearance opening 42. The clearance opening 42 is located at the top of the rear section of the folding plate 4 along the conveying direction.

[0019] The pushing mechanism 5 includes a pushing frame 51, a pushing drive 52, and a pushing plate 53. The pushing frame 51 is located on one side of the conveying mechanism 2, and the pushing drive 52 is mounted on the pushing frame 51. The pushing drive 52 is preferably a cylinder. The pushing plate 53 and the folding plate 4 are respectively located on both sides of the conveying mechanism 2 and are arranged opposite to each other. The pushing plate 53 is connected to the movable end of the pushing drive 52, and a channel for the packaging bag 8 to pass through is formed between the pushing plate 53 and the folding plate 4. The pushing drive 52 drives the pushing plate 53 to horizontally push the packaging bag 8 towards the folding plate 4 along a direction perpendicular to the conveying direction.

[0020] The sealing mechanism 6 is located downstream of the folding bag plate 4 and includes a sealing push plate 61 and a sealing drive component 62. The sealing drive component 62 is preferably a cylinder. The sealing drive component 62 drives the sealing push plate 61 to move horizontally along a direction perpendicular to the conveying direction. The sealing push plate 61 is located at the clearance opening 42 of the folding bag plate 4, and a sealing brush 63 is provided at the lower end of the sealing push plate 61. The sealing brush 63 is made of a flexible material, or a flexible scraper made of other soft materials can be used for application.

[0021] The bag-pressing mechanism 7 is located above the conveying mechanism 2 and corresponds to the sealing mechanism 6. The bag-pressing mechanism 7 includes a bag-pressing plate 71, a first driving member 72, two bag-pressing strips 73, a second driving member 74, and a third driving member 75. The bag-pressing plate 71 is vertically mounted on the frame 1 via the first driving member 72. The first driving member 72 is either a pneumatic cylinder or an electric cylinder. After the bag-pressing plate 71 descends, it presses down on the middle to the bottom area of ​​the packaging bag 8, compacting the material 9 inside the packaging bag 8. The two bag-pressing strips 73 are located on the front and rear sides of the sealing mechanism 6 along the conveying direction. Each bag-pressing strip 73 is translated along the conveying direction via its corresponding second driving member 74, and each bag-pressing strip 73 is vertically mounted via its corresponding third driving member 75. The second driving member 74 is preferably a pneumatic cylinder, and the third driving member 75 can be either a pneumatic cylinder or an electric cylinder.

[0022] The working process of this utility model is as follows: After the packaging bag 8 is filled with material 9 by the bagging mechanism 3, it is conveyed forward along the conveying direction by the conveying mechanism 2. The tongue 81 of the packaging bag 8 first contacts the guide surface 41 of the folding plate 4, is smoothly and gradually lifted, and finally naturally transitions to the top of the folding plate 4, completing the upward bend. After the tongue 81 is bent, it forms an angle of about 90 degrees with the conveying plane of the conveying mechanism 2, and the bent tongue 81 is supported by the folding plate 4.

[0023] After the folding plate 4 completes the bending of the tongue 81, the pusher drive 52 drives the pusher plate 53 to horizontally push the packaging bag 8 towards the folding plate 4 along a direction perpendicular to the conveying direction, until both ends of the material 9 abut against the folding plate 4 and the pusher plate 53 respectively. At this time, the side surface of the folding plate 4 facing the packaging bag 8 contacts the side wall of the packaging bag 8. Due to the lateral movement of the pusher plate 53, the empty space on one side of the opening of the packaging bag 8 is eliminated as the tongue 81 is bent upward by the folding plate 4, and there is no longer a gap between the material 9 and the tongue 81.

[0024] Subsequently, the bag-pressing mechanism 7 operates. The first drive unit 72 drives the bag-pressing plate 71 to descend, pressing down on the middle to bottom area of ​​the packaging bag 8, compacting the material 9 inside the bag. Before sealing, the two bag-pressing strips 73 descend via the third drive unit 75 to press down on the bag opening. During sealing, the tongue 81 of the packaging bag 8 has been pre-coated with adhesive or double-sided tape before being bagged. The sealing drive unit 62 drives the sealing push plate 61 to move horizontally along a direction perpendicular to the conveying direction. The sealing brush 63 at the lower end of the sealing push plate 61 pushes the tongue 81 of the packaging bag 8 to fold towards the body of the packaging bag 8. The tongue 81 bends over the bag-pressing strips 73 and adheres to the surface of the packaging bag 8, completing the sealing action. After sealing, the two bag-pressing strips 73 are pulled out from between the bag body and the tongue 81 along the conveying direction via the second drive unit 74 and reset.

Claims

1. A push-type bagging machine, comprising a frame (1) and a conveying mechanism (2), a bagging mechanism (3), a bag-folding plate (4), and a sealing mechanism (6) disposed on the frame (1), wherein the bag-folding plate (4) is located behind the bagging mechanism (3) along the conveying direction, characterized in that, It also includes a pushing mechanism (5), which includes a pushing drive (52) and a pushing plate (53). The pushing plate (53) and the folding plate (4) are respectively located on the lateral sides of the conveying mechanism (2) and are arranged opposite to each other. The pushing plate (53) is connected to the pushing drive (52). A channel for the packaging bag (8) to pass through is formed between the pushing plate (53) and the folding plate (4). When working, the pushing drive (52) drives the pushing plate (53) to move towards the folding plate (4), so that the material (9) on the bag opening side moves closer to the bent tongue (81) before sealing.

2. The push-type bagging machine according to claim 1, characterized in that, The pushing mechanism (5) further includes a pushing frame (51), which is located on the lateral side of the conveying mechanism (2), and the pushing drive (52) is located on the pushing frame (51).

3. The push-type bagging machine according to claim 1, characterized in that, The folding plate (4) has a guide surface (41) on one end facing the bagging mechanism (3). The guide surface (41) of the folding plate (4) is a smoothly transitioned arc surface or slope. The top of the folding plate (4) has a clearance opening (42).

4. The push-type bagging machine according to claim 3, characterized in that, The sealing mechanism (6) is located downstream of the folding bag plate (4) and includes a sealing push plate (61) and a sealing drive component (62). The sealing drive component (62) drives the sealing push plate (61) to move horizontally in a direction perpendicular to the conveying direction. The sealing push plate (61) is located at the clearance opening (42) and its lower end is provided with a sealing brush (63).

5. The push-type bagging machine according to claim 1, characterized in that, It also includes a bag pressing mechanism (7), which is located on the upper side of the conveying mechanism (2) and is corresponding to the sealing mechanism (6). It includes a bag pressing plate (71) and a first driving member (72). The bag pressing plate (71) is raised and lowered on the frame (1) through the first driving member (72).

6. The push-type bagging machine according to claim 5, characterized in that, The bag pressing mechanism (7) further includes two bag pressing strips (73), a second driving member (74) and a third driving member (75). The two bag pressing strips (73) are respectively arranged on the front and rear sides of the sealing mechanism (6) along the conveying direction. Each bag pressing strip (73) is translated along the conveying direction by the corresponding second driving member (74), and each bag pressing strip (73) is raised and lowered by the corresponding third driving member (75).

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