Bagging equipment

Abstract

A transmission roller mechanism of the bagging equipment is located between a film releasing mechanism and a sealing and cutting mechanism, the transmission roller mechanism comprises a frame body, a first roller and a second roller, the first roller and the second roller are installed on the frame body and arranged in parallel in the height direction, and the first roller is located below the second roller. A gap for a film to pass through is formed between the first roller and the second roller; a mounting groove which extends in the height direction and penetrates through the upper surface of the frame body is formed in the frame body; the second roller comprises a roller part and shaft parts installed at the two ends of the roller part, the roller part and the shaft parts are connected through shafts capable of rotating relatively, the shaft parts are inserted into the installation grooves, abutting parts are arranged on the shaft parts, abutting mechanisms are detachably installed on the frame body, and the abutting mechanisms abut against the abutting parts in the height direction.

Description

Technical Field

[0001] The utility model relates to a bagging device. Background Art

[0002] Before the articles to be packaged are packaged by a horizontal winding machine, individual products need to be bagged first. In order to achieve automated production, a bagging device is usually arranged in front of the horizontal winding machine. Please refer to Figure 1 , the existing bagging device includes a film feeding mechanism and a sealing and cutting mechanism 10 arranged at the rear side of the film feeding mechanism. The film feeding mechanism includes an upper film feeding assembly 20 and a lower film feeding assembly 30. A roll of film 40 is respectively arranged on the upper film feeding assembly 20 and the lower film feeding assembly 30. The ends of the two films 40 are melted into one body by the sealing and cutting mechanism 10. When the article to be packaged passes through the film 40, the film 40 is pulled to make the upper film feeding assembly 20 and the lower film feeding assembly 30 feed the film. When the film 40 completely wraps the product, at this time, the rear side of the product passes through the sealing and cutting mechanism 10, and the sealing and cutting mechanism 10 moves down to fuse the film 40.

[0003] In some existing horizontal winding machines, in order to prevent the film from wrinkling during transmission, a transmission roller mechanism is usually arranged between the upper film feeding assembly 20 and the sealing and cutting mechanism 10. However, since the existing transmission roller mechanism cannot be adjusted after being fixed, when the film 40 needs to be replaced, the film 40 needs to be passed through the transmission roller mechanism. And because in order to prevent the film from wrinkling during transmission, the gap for passing the film between the two rollers of the transmission roller mechanism is relatively small (this gap is generally slightly larger than the thickness of the film), thus, it is relatively difficult to thread the film into the gap. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a bagging device which is convenient for replacing the film.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A bagging device includes a roller conveyor line, two film feeding mechanisms, a sealing and cutting mechanism and a transmission roller mechanism. The two film feeding mechanisms are oppositely arranged on the upper and lower sides of the roller conveyor line. The sealing and cutting mechanism is arranged on the upper side of the roller conveyor line. In the moving direction of the material, the sealing and cutting mechanism is located behind the film feeding mechanism. The transmission roller mechanism is located between the film feeding mechanism and the sealing and cutting mechanism. The transmission roller mechanism includes a frame body and a first roller and a second roller which are installed on the frame body and arranged in parallel along the height direction. The first roller is located below the second roller. A gap for passing the film is formed between the first roller and the second roller. An installation groove extending along the height direction and penetrating the upper surface of the frame body is arranged on the frame body.

[0006] The second drum includes a drum part and shaft parts mounted at both ends of the drum part. There is a rotatable shaft connection between the drum part and the shaft parts. The shaft parts are inserted into the mounting grooves, and abutting parts are provided on the shaft parts. A pressing mechanism is detachably mounted on the frame body, and the pressing mechanism presses the abutting parts in the height direction.

[0007] Further, one of the abutting parts and the pressing mechanism is formed with a wedge-shaped protrusion, and the other is formed with a wedge-shaped groove. When the pressing mechanism presses the abutting part, the wedge-shaped protrusion is clamped in the wedge-shaped groove.

[0008] Further, the pressing mechanism includes a fixing plate detachably mounted on the frame body, a first cylinder mounted on the fixing plate, and a pressing plate provided on the plunger of the first cylinder.

[0009] Further, the transmission drum mechanism further includes a driving motor for driving the first drum to rotate.

[0010] Further, the film feeding mechanism includes a mounting shaft for mounting a film roll, a shaft support for mounting the mounting shaft, and at least one locking component for locking the rotation of the mounting shaft. The locking component includes a gear fixed on the mounting shaft, a driving member mounted on the shaft support, and a rack provided on the driving member. The driving member drives the rack to move towards or away from the gear to achieve the engagement or separation of the rack and the gear.

[0011] Further, the driving member is a cylinder, and the rack is mounted on the plunger of the cylinder.

[0012] Further, bearings are mounted on at least one end of the mounting shaft. The shaft support includes a first support plate, and a semi-circular groove for receiving the bearings is recessed on the first support plate.

[0013] Further, a stop piece is further provided on the mounting shaft. A limiting groove is formed between the stop piece and the bearing. A first U-shaped frame body is provided on the shaft support, and the first U-shaped frame body is inserted into the limiting groove to achieve axial limitation.

[0014] Further, a gap is formed between the first U-shaped frame body and the circumferential surface of the mounting shaft.

[0015] Further, the shaft support includes a second support plate. A second U-shaped frame body and two roller groups are provided on one side of the second U-shaped frame body. The two roller groups are arranged horizontally front and back. The axis of the roller groups is parallel to the axis of the mounting shaft. After the mounting shaft is inserted into the U-shaped frame body, it is tangent to both roller groups.

[0016] The beneficial effects of the present utility model are as follows: In this application, an installation groove is provided on the frame body, which extends in the height direction and penetrates the upper surface of the frame body. In this way, the second roller can be removed through the installation groove. Therefore, when the film needs to be replaced, only need to first remove the second roller from the frame body, then place the film on the first roller, and then install the second roller on the frame body to achieve the replacement of the film. Compared with the prior art, it is more convenient to replace the film. Moreover, through the cooperation of the pressing mechanism and the holding part, the second roller is pressed towards the first roller to improve the clamping of the film and prevent the film from wrinkling.

[0017] The above description is only an overview of the technical solution of the present utility model. In order to be able to more clearly understand the technical means of the present utility model and can be implemented according to the content of the specification, the following takes the preferred embodiment of the present utility model and combines the accompanying drawings to describe in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the working principle of the bagging device;

[0019] Figure 2 It is a schematic structural diagram of the bagging device shown in an embodiment of the present utility model;

[0020] Figure 3 For Figure 1 The schematic structural diagram of the bagging device shown in another direction;

[0021] Figure 4 For Figure 1 The schematic structural diagram of the pressing mechanism in

[0022] Figure 5 For Figure 4 The schematic structural diagram of the pressing mechanism shown in another direction.

[0023] Figure 6 For Figure 1 The schematic structural diagram of the locking component and the clamping mechanism in

[0024] Figure 7 For Figure 6 The schematic structural diagram of the locking component and the shaft bracket shown in another direction;

[0025] Figure 8 For Figure 1 The schematic structural diagram of the second clamping mechanism in

[0026] Figure 9 For Figure 8 The schematic structural diagram of the second clamping mechanism shown in another direction. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] Please refer to Figures 2 to 5 , a bagging device shown in a preferred embodiment of the present application includes a bagging frame body 40, a roller conveyor line 10 fixed on the frame body 40, a sealing and cutting mechanism 30, and two film feeding mechanisms 20. The roller conveyor line 10 and the sealing and cutting mechanism 30 both adopt existing technologies and will not be elaborated herein. The two film feeding mechanisms 20 are oppositely arranged on the upper and lower sides of the roller conveyor line 10, and the sealing and cutting mechanism 30 is arranged on the upper side of the roller conveyor line 10. In the moving direction of the material ( Figure 1 the direction indicated by the arrow a in [ ] is the moving direction of the material), the sealing and cutting mechanism 30 is located behind the film feeding mechanism 20.

[0032] The bagging device further includes a driving roller mechanism 50 located above the roller conveyor line 10. By providing this driving roller mechanism 50, wrinkles of the film can be prevented during the transmission process. Specifically, the driving roller mechanism 50 is located between the film feeding mechanism 20 and the sealing and cutting mechanism 30. The driving roller mechanism 50 includes a first roller 51 and a second roller 52 mounted on the frame 40. A gap (not labeled) for the film to pass through is formed between the first roller 51 and the second roller 52. The first roller 51 and the second roller 52 are arranged in parallel in the height direction, and the first roller 51 is located below the second roller 52. An installation groove 41 extending in the height direction and penetrating the upper surface of the frame 40 is provided on the frame 40. The second roller 52 includes shaft portions 521 mounted at both ends of the roller portion 523. The roller portion 523 and the shaft portions 521 are connected by a rotatable shaft connection. The shaft portions 521 are inserted into the installation groove 41, and a holding portion 522 is provided on the shaft portions 521. A pressing mechanism 54 is detachably mounted on the frame 40, and the pressing mechanism 54 presses the holding portion 522 in the height direction.

[0033] By providing the installation groove 41 on the frame 40 that extends in the height direction and penetrates the upper surface of the frame 40, in this way, the second roller 52 can be removed through the installation groove 41. Therefore, when the film 100 needs to be replaced, only need to first remove the second roller 52 from the frame 40, then place the film 100 on the first roller 51, and then install the second roller 52 on the frame 40 to achieve the replacement of the film 100. Compared with the prior art, the replacement of the film 100 is more convenient. Moreover, through the cooperation of the pressing mechanism 54 and the holding portion 522, the second roller 52 is pressed towards the first roller 51 to improve the clamping of the film 100 and prevent the film from wrinkling. It should be noted that since the pressing mechanism 54 needs to be provided directly above the second roller 52, the pressing mechanism 54 will interfere with the removal of the second roller 52 from the frame 40. By setting the pressing mechanism 54 to be detachably mounted on the frame 40, the closing of the installation groove 41 by the pressing mechanism 54 is avoided, and the removal of the second roller 52 is prevented.

[0034] One of the abutting portion 522 and the pressing mechanism 54 is formed with a wedge-shaped protrusion 524, and the other is formed with a wedge-shaped groove (not shown). When the pressing mechanism 54 presses the abutting portion 522, the wedge-shaped protrusion 524 is clamped in the wedge-shaped groove. In this way, the abutting portion 522 can be prevented from moving relative to the pressing mechanism 54 in the horizontal direction and the axial direction of the second roller 52. Since the position between the abutting portion 522 and the second roller 52 is relatively fixed, the cooperation between the wedge-shaped protrusion 524 and the wedge-shaped groove actually restricts the movement of the second roller 52 in the horizontal direction and the axial direction. In this embodiment, the pressing mechanism 54 includes a fixing plate 541 detachably mounted on the frame 40, a first cylinder 542 mounted on the fixing plate 541, and a pressing plate 543 provided on the plunger of the first cylinder 542. The fixing plate 541 is detachably fixed to the frame 40 by fasteners (not shown).

[0035] The driving roller mechanism 50 further includes a driving motor 53 mounted on the frame 40 and driving the first roller 51 to rotate. The first roller 51 is driven by the driving motor 53. In this way, the movement of the film 100 can be assisted, and the smoothness of the conveying of the film 100 can be improved.

[0036] In the existing film feeding mechanism, the film feeding is realized by the packaged article pulling the film. When the packaged article does not move, the film feeding mechanism stops feeding the film. Thus, the movement of the film feeding mechanism completely depends on the driving of the packaged article. However, such a driving method has the following problems: when the packaged article does not move, due to inertia, the upper film feeding component and the lower film feeding component of the film feeding mechanism will still rotate a certain angle. At this time, the film feeding mechanism is still in the film feeding state. Thus, the film on the packaged article cannot be completely tensioned and wrapped around the packaged article, so that the packaged article is loosely wrapped by the bag, which is not conducive to the winding of the horizontal winding machine, that is, the packing quality is reduced.

[0037] To solve the above problems, please refer to Figure 2 、 Figures 6 to 9 , a locking assembly is provided on the film feeding mechanism 20. Specifically, the film feeding mechanism 20 includes a mounting shaft 21 for mounting the film roll 100, a shaft bracket 22 for mounting the mounting shaft 21, and at least one locking assembly 23 for locking the rotation of the mounting shaft 21. The locking assembly 23 includes a gear 231 fixed on the mounting shaft 21, a driving member 232 mounted on the shaft bracket 22, and a rack 233 provided on the driving member 232. The driving member 232 drives the rack 233 to move towards or away from the gear 231 to realize the engagement or separation of the rack 233 and the gear 231. In an alternative embodiment, the driving member 232 is a cylinder, and the rack 233 is mounted on the plunger of the cylinder 232.

[0038] By setting the locking assembly 23, the meshing and separation of the gear 231 fixed on the mounting shaft 21 and the rack 233 driven by the driving member 232 are realized. When the gear 231 and the rack 233 are meshed, the rotation of the mounting shaft 21 can be restricted, and when the gear 231 and the rack 233 are separated, the mounting shaft 21 can rotate. Thus, after the item to be packaged is completely covered by the film and the item to be packaged moves under the sealing and cutting mechanism 30 for the sealing and cutting process, the cooperation of the gear 231 and the rack 233 prevents the mounting shaft 21 from continuing to rotate due to inertia, thereby avoiding the problem of loose bagging and helping to improve the packing quality.

[0039] The shaft bracket 22 includes a first support plate 221 and a second support plate 222 mounted on the frame body 40. In this embodiment, only one locking assembly 23 is provided, and the driving member 232 of the locking assembly 23 is fixed on the first support plate 221. A bearing 241 is mounted on the mounting shaft 21, and a semi-circular groove (not labeled) for receiving the bearing 241 is recessed in the first support plate 221. A stop piece 242 is further provided on the mounting shaft 21, and a limiting groove 245 is formed between the stop piece 242 and the bearing 241. A first U-shaped frame body 246 is provided on the shaft bracket 22, and the first U-shaped frame body 246 is inserted into the limiting groove 245 to achieve axial limitation. A spacing is formed between the first U-shaped frame body 246 and the circumferential surface of the mounting shaft 21 to reduce the resistance when the mounting shaft 21 rotates. A first locking ring 247 and a second locking ring 248 are further mounted on the mounting shaft 21, and the first locking ring 247 is used to axially limit the gear 231, and the second locking ring 248 is used to axially limit the bearing 241.

[0040] A second U-shaped frame body 251 and two roller groups 252 provided on one side of the second U-shaped frame body 251 are mounted on the second support plate 222. The two roller groups 252 are horizontally arranged front and back, the axis of the roller group 252 is parallel to the axis of the mounting shaft 21, and the mounting shaft 21 is inserted into the U-shaped frame body 40 and is tangent to both roller groups 252. In this embodiment, each roller group 252 is two coaxially arranged, and of course, each roller group 252 can also be one.

[0041] In other embodiments, the locking assembly 23 can also be set to two, and the arrangement of the second support plate 222, one end of the mounting shaft 21 matching the second support plate 222, and the locking assembly 23 is the same as the arrangement of the first support plate 221, one end of the mounting shaft 21 matching the first support plate 221, and the locking assembly 23.

[0042] The mounting shaft 21 includes two shaft bodies 211 and a conical plug-in member 212 provided at one end of the shaft body 211. The plug-in member 212 is partially inserted into the shaft hole of the film roll 100, and the film roll 100 is fixed by the plug-in member 212.

[0043] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0044] The above-described embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A bagging device, characterized in that: It includes a roller conveyor line, two film-laying mechanisms, a sealing and cutting mechanism and a transmission roller mechanism, wherein the two film-laying mechanisms are relatively arranged at the upper and lower sides of the roller conveyor line, the sealing and cutting mechanism is arranged at the upper side of the roller conveyor line, and in the moving direction of the material, the sealing and cutting mechanism is located behind the film-laying mechanism; the transmission roller mechanism is located between the film-laying mechanism and the sealing and cutting mechanism, and the transmission roller mechanism includes a frame and a first roller and a second roller installed on the frame and arranged in parallel along the height direction, the first roller is located below the second roller, and a gap is formed between the first roller and the second roller for the film to pass through; the frame is provided with a mounting groove extending along the height direction and penetrating the upper surface of the frame; The second roller includes a roller portion and shaft portions installed at both ends of the roller portion, the roller portion and the shaft portion are connected by a relatively rotatable shaft, the shaft portion is inserted into the installation groove, a supporting portion is provided on the shaft portion, and a pressing mechanism is detachably installed on the frame, and the pressing mechanism presses the supporting portion in the height direction.

2. The bagging device according to claim 1, characterized in that: A wedge-shaped protrusion is formed on one of the abutting portion and the pressing mechanism, and a wedge-shaped groove is formed on the other. When the pressing mechanism presses the abutting portion, the wedge-shaped protrusion is fixed in the wedge-shaped groove.

3. The bagging device according to claim 2, characterized in that: The pressing mechanism comprises a fixing plate detachably mounted on the frame, a first cylinder mounted on the fixing plate, and a pressing plate arranged on a plunger of the first cylinder.

4. The bagging device according to claim 1, characterized in that: The transmission roller mechanism also includes a driving motor for driving the first roller to rotate.

5. The bagging device according to claim 1, characterized in that: The film unwinding mechanism includes a mounting shaft for mounting a film roll, an axis bracket for mounting the mounting shaft, and at least one locking assembly for locking the rotation of the mounting shaft, wherein the locking assembly includes a gear fixed on the mounting shaft, a driving member mounted on the axis bracket, and a rack arranged on the driving member, wherein the driving member drives the rack to move toward or away from the gear to achieve engagement or separation between the rack and the gear.

6. The bagging device according to claim 5, characterized in that: The driving member is a cylinder, and the rack is mounted on a plunger of the cylinder.

7. The bagging device according to claim 6, characterized in that A bearing is installed on at least one end of the installation shaft, and the shaft bracket includes a first support plate, and a semicircular groove is formed inwardly on the first support plate for accommodating the bearing.

8. The bagging device according to claim 7, characterized in that The mounting shaft is also provided with a stopper, a limiting groove is formed between the stopper and the bearing, and a first U-shaped frame is provided on the shaft support, and the first U-shaped frame is inserted into the limiting groove to achieve axial limiting.

9. The bagging device according to claim 8, characterized in that A gap is formed between the first U-shaped frame and the circumferential surface of the installation shaft.

10. The bagging device according to any one of claims 5 to 9, characterized in that The shaft bracket includes a second support plate, on which a second U-shaped frame and two roller groups arranged on one side of the second U-shaped frame are installed. The two roller groups are arranged horizontally front and back, and the axis of the roller group is parallel to the axis of the installation shaft. After the installation shaft is inserted into the U-shaped frame, it is tangent to the two roller groups.

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