Clean dust-free bag opening device
The clean and dust-free open bag device addresses sealing issues in open bag stations by using a sealed structure with a return box and rotating arm mechanism to ensure secure bagging and prevent leakage, maintaining bag length and reducing device size.
Patent Information
- Application Number
- CN202422066678.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-26
AI Technical Summary
The complete closing of the existing plywood station causes the shortening of the length of the ton bag, resulting in failure of the bagging and insufficient sealing, and there is a risk of material leakage, especially hazardous materials that may cause damage to the human body and the environment.
A clean and dust-free bag opening device is designed. The clamping plate of the clamping bag assembly is left with a clamping port, and combined with the sealing cylinder and the return box to form a sealing structure. The dust collector is used to collect leaked materials to avoid material leakage. At the same time, the clamping assembly with swing arm structure is used to reduce the space occupied.
It realizes the reduction of the length of ton bags during clamping, avoids material leakage, ensures successful bagging, and achieves clean and dust-free operation through the dust removal system.
Smart Images
Figure CN223102141U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bag opening station design, in particular to a clean and dust-free bag opening device. Background Art
[0002] The bag opening station is used to unpack ton bags and transport materials to the silo. Its operating steps are: bag clamping, unpacking, bagging, bag pressing, and bag unclamping. Since the bag mouth of the ton bag is not connected to the barrel below when unpacking, it is necessary to set a bag clamping assembly to clamp the bag mouth before unpacking to prevent the material from falling and leaking when unpacking. In the prior art, the connection between the ton bag and the barrel is exposed to the outside. The two clamping plates of the bag clamping assembly are completely closed in the clamping state, but the clamping of the clamping plate will shrink the bag mouth of the ton bag and shorten the length of the ton bag. The tighter the clamping plate is, the more the ton bag shrinks. For the case where the length of the ton bag is limited, if the two clamping plates are completely closed, the bag mouth of the ton bag may not be able to contact the barrel below, resulting in bagging failure. In addition, the sealing of the bag clamping assembly is limited, and complete sealing cannot be achieved in the actual working process. For hazardous materials, such as powder materials with heavy metals, trace leakage will also cause damage to the human body and the environment. For this reason, it is necessary to design a bag opening device that can both avoid material leakage and ensure successful bagging. Utility Model Content
[0003] In order to solve the technical problem that the bag opening station in the prior art needs to achieve sealing through the complete closure of the clamping plates of the bag clamping assembly, which leads to shortened length of the ton bag after clamping and prone to bagging failure of the ton bag, the utility model provides a clean and dust-free bag opening device to solve the above problem.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a clean and dust-free bag opening device, including a bag opening station, a return box and a silo; the bag opening station is composed of a bag supporting plate, a bag clamping assembly and a barrel arranged in sequence from top to bottom, and the barrel is connected to a bag pressing cylinder; a sealing cylinder is connected between the fixed part of the bag clamping assembly and the barrel, and the bag clamping assembly, the sealing cylinder, the ton bag and the barrel form a dust removal chamber, a dust removal fan is provided inside the return box, the inlet of the return box is connected to the sealing cylinder, and the outlet of the return box is connected to the silo.
[0005] Furthermore, the bag clamping assembly includes two clamping plates that can move relative to each other, and when the bag clamping assembly clamps the ton bag, a clamping opening is left between the two clamping plates.
[0006] Furthermore, the surface of the clamping plate surrounding the clamping opening is an arc surface or a multi-segment flat surface.
[0007] Furthermore, the clamping opening has an elliptical structure.
[0008] Further, the bag clamping assembly further includes bag clamping cylinders respectively connected to the clamping plates one by one, and the bag clamping cylinders drive the clamping plates to perform linear reciprocating motion.
[0009] Further, the bag clamping assembly further includes swing arms and bag clamping cylinders that are sequentially connected to the clamping plates one by one. The rotating shafts of the swing arms are rotatably connected to the bag clamping bottom plate. The bag clamping cylinders and the clamping plates are respectively connected to both sides of the swing arms, and the clamping plates are fixed to the swing arms.
[0010] Further, the swing arm has an arc surface arranged on the same side as the clamping plate, and the arc surface of the clamping plate protrudes from the arc surface of the swing arm.
[0011] Further, the clamping plate includes a clamping section and support sections located at both ends of the clamping section. The arc surface is located on the clamping section. When the bag clamping assembly is in the clamping state, the support sections of the two clamping plates are arranged staggeredly up and down.
[0012] Further, the rotating shafts of the swing arms are arranged close to the edge of the bag clamping bottom plate, and the two swing arms are arranged centrally symmetrically about the central axis of the cartridge.
[0013] Further, a door body that can be opened and closed is provided on the sealing cylinder.
[0014] The beneficial effects of the present utility model are as follows:
[0015] (1) The present utility model uses a sealing cylinder to form a sealed structure for the bag opening station from top to bottom. At the same time, a return feeding box connected between the bag opening station and the silo enables the leaked material to enter the silo through the return feeding box. Even if the bag clamping assembly does not completely clamp the bag mouth, material leakage can be avoided.
[0016] (2) When the bag clamping assembly of the present utility model is in the clamping state, a clamping opening is left between the two clamping plates, thereby reducing the shortening amount of the length of the ton bag and making it easier for the ton bag to be sleeved on the cartridge.
[0017] (3) The present utility model adopts a clamping assembly with a swing arm structure. Compared with the direct drive of a traditional cylinder, the lateral distance occupied by the clamping assembly can be shortened, thereby reducing the external dimensions of the clamping assembly. Description of the Drawings
[0018] The present utility model will be further described below with reference to the drawings and embodiments.
[0019] Figure 1 is a schematic structural diagram of a specific embodiment of the clean and dust-free bag opening device described in the present utility model;
[0020] Figure 2 is Figure 1 an enlarged view at a in
[0021] Figure 3It is the top view of the bag clamping assembly in the present utility model;
[0022] Figure 4 It is Figure 3 the sectional view taken along the A-A direction of
[0023] Figure 5 It is the three-dimensional view of the clamping plate in the present utility model.
[0024] In the figure, 1 is the bag opening station, 2 is the return bin, 3 is the silo, 4 is the bag supporting tray, 5 is the bag clamping assembly, 501 is the clamping plate, 5011 is the clamping section, 5012 is the supporting section, 502 is the clamping opening, 503 is the bag clamping cylinder, 504 is the swing arm, 505 is the rotating shaft, 6 is the material cylinder, 7 is the bag pressing cylinder, 8 is the door body, 9 is the sealing cylinder, 10 is the dust removal chamber, 11 is the dust removal fan, 12 is the bag clamping bottom plate, 13 is the protective cover, 14 is the arc surface, 15 is the right clamping plate, 16 is the left clamping plate, and 17 is the ton bag. Specific embodiments
[0025] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.
[0026] Embodiment 1
[0027] A dust-free bag opening device, as Figure 1 and Figure 2 shown, includes a bag opening station 1, a return bin 2 and a silo 3; the bag opening station 1 is successively arranged from top to bottom with a bag supporting tray 4, a bag clamping assembly 5 and a material cylinder 6. The bag supporting tray 4 is used to support the ton bag 17 before unpacking and during the unloading process, bearing most of the weight of the ton bag 17. A bag pressing cylinder 7 is connected to the material cylinder 6, and the lower part of the material cylinder 6 is connected to the silo 3. After the ton bag 17 is unpacked, the bag mouth of the ton bag 17 is sleeved on the top of the material cylinder 6 and is pressed by the bag pressing cylinder 7; a sealing cylinder 9 is connected between the fixed part of the bag clamping assembly 5 and the material cylinder 6, so that the fixed parts of the bag opening station 1 from top to bottom are connected through the sealing cylinder 9 and the ton bag 17 is surrounded. The ton bag 17 is unpacked and the material falls in the surrounded space. A dust removal chamber 10 is formed by the bag clamping assembly 5, the sealing cylinder 9, the ton bag 17 and the material cylinder 6. A dust removal fan 11 is arranged inside the return bin 2. The inlet of the return bin 2 is connected to the sealing cylinder 9, and the outlet of the return bin 2 is connected to the silo 3. For the convenience of manual unpacking, the sealing cylinder 9 is preferably provided with a door body 8 that can be opened and closed.
[0028] During the unpacking and blanking process, a small amount of leaked material will enter the dust removal chamber 10. The dust removal fan 11 sucks the leaked material into the return feeding box 2, and finally it falls into the lower silo 3 under the action of gravity to achieve the recovery of the material. Since the sealing cylinder 9 and the return feeding box 2 are provided to ensure that the material does not leak to the outside, the bag clamping assembly 5 can not completely close and clamp the bag mouth. For the ton bag 17 with a shorter length, the incomplete closing of the bag clamping assembly 5 can reduce the shortening length of the ton bag 17. Since there is more material inside the ton bag 17 at this time and it accumulates at the bag mouth, it is very difficult for the material to fall when the bag clamping assembly 5 has a small opening, and not too much will leak in a short time. Therefore, the utility model can avoid the situation where the ton bag 17 cannot be sleeved on the feeding cylinder 6, and can also achieve clean and dust-free bag opening. Of course, for the case where the length of the ton bag 17 is sufficient, the utility model is also applicable to the case where the bag clamping assembly 5 can be completely closed.
[0029] In this embodiment, the bag clamping assembly 5 includes two clamping plates 501 that can move relative to each other. When the bag clamping assembly 5 clamps the ton bag 17, a clamping opening 502 is left between the two clamping plates 501. As Figure 3 shown, the bag clamping assembly 5 is arranged in the protective cover 13. The bag clamping assembly 5 is installed on the bag clamping bottom plate 12 of the protective cover 13. Both the protective cover 13 and the bag clamping bottom plate 12 have openings at the centers for the ton bag 17 to pass through. The size of the clamping opening 502 is small, and its function is to reduce the diameter of the blanking channel of the ton bag 17 to prevent the material from falling. At the same time, the reserved clamping opening 502 can prevent the ton bag 17 from continuing to shrink. The surface of the clamping plate 501 surrounding the clamping opening 502 can be multiple flat surfaces, and the multiple flat surfaces refer to multiple non-coplanar flat surfaces. At this time, the projection of the surface of the clamping plate 501 surrounding the clamping opening 502 is a broken line shape. The surface of the clamping plate 501 surrounding the clamping opening 502 can also be an arc surface 14. At this time, the contact surface between the clamping opening 502 and the ton bag 17 does not have a sharp angle, which can avoid damaging the ton bag 17. The clamping opening 502 is preferably in an oval structure. As shown in the figure, the clamping opening 502 is relatively long and narrow, with a larger width in the middle and smaller widths at both ends, which can block the material and leave more space for the ton bag 17.
[0030] The bag clamping assembly 5 in this embodiment can adopt the direct driving method of a conventional bag clamping cylinder 503, that is, each clamping plate 501 is connected to a bag clamping cylinder 503, and the bag clamping cylinder 503 drives the clamping plate 501 to make a linear reciprocating motion.
[0031] Embodiment Two
[0032] In Embodiment One, the clamping plate 501 is directly driven by the bag clamping cylinder 503, and the stroke of the bag clamping cylinder 503 is long, occupying a large lateral dimension. Therefore, the following structure of the bag clamping assembly 5 is adopted in this embodiment:
[0033] The bag clamping assembly 5 further includes a swing arm 504 and a bag clamping cylinder 503 that are sequentially connected to the clamping plates 501 one by one. The rotating shaft 505 of the swing arm 504 is rotatably connected to the bag clamping bottom plate 12. The bag clamping cylinder 503 and the clamping plates 501 are respectively connected to both sides of the swing arm 504, and the clamping plates 501 are fixed to the swing arm 504. As shown in Figure 3 and Figure 4 shown, a rotating bearing is provided on the rotating shaft 505 where the swing arm 504 is connected to the bag clamping bottom plate 12 to reduce the rotational friction. When the bag clamping cylinder 503 is started, it drives the swing arm 504 to rotate around the rotating shaft 505, thereby driving the movement of the clamping plates 501. The rotating shaft 505 of the swing arm 504 is provided at one end close to the swing arm 504, and the bag clamping cylinder 503 is arranged at a certain angle with the swing arm 504 and does not need to be arranged in a straight line, thereby reducing the lateral dimension of the bag clamping assembly 5.
[0034] Preferably, the swing arm 504 has an arc surface 14 arranged on the same side as the clamping plate 501, and the arc surface 14 of the clamping plate 501 protrudes from the arc surface 14 of the swing arm 504. The arc surface 14 of the swing arm 504 is provided to conform to the outer shape structure of the clamping plate 501, so that the clamping plate 501 and the swing arm 504 have a uniform connection surface, avoiding interference of the swing arm 504 with the clamping of the clamping plate 501. When clamping, the arc surface 14 of the clamping plate 501 clamps the ton bag 17.
[0035] The clamping plate 501 is fixed to the bottom or top of the swing arm 504 by bolts. As shown in Figure 4 shown, the clamping plate 501 is fixed to the bottom of the swing arm 504. The rotating shaft 505 of the swing arm 504 is installed on the bag clamping bottom plate 12. The rotating shaft 505 of the swing arm 504 is arranged close to the edge of the bag clamping bottom plate 12. The two swing arms 504 are arranged in central symmetry with the central axis of the barrel 6 as the center. At this time, the corresponding rotating shafts 505 of the two swing arms 504 are arranged diagonally. The two bag clamping cylinders 503 are also inclined laterally, thereby reducing the lateral distance.
[0036] Regarding the specific shape design of the clamping plate 501, since one end of the swing arm 504 is stressed and the other end is suspended, considering the support force problem of the clamping plate 501, the following improvement is made to the clamping plate 501 in this embodiment: As shown in Figure 5 shown, the clamping plate 501 includes a clamping section 5011 and support sections 5012 located at both ends of the clamping section 5011. The arc surface 14 is located on the clamping section 5011. When the bag clamping assembly 5 is in the clamping state, the support sections 5012 of the two clamping plates 501 are arranged staggered up and down. The thickness of the clamping section 5011 of the clamping plate 501 is greater than the thickness of the support section 5012, so as to leave an insertion space above or below the support sections 5012 of different clamping plates 501. As shown in Figure 4As shown, let the two clamping plates 501 be the left clamping plate 16 and the right clamping plate 15 respectively. The support section 5012 of the left clamping plate 16 is located below. In the clamped state, the two support sections 5012 of the right clamping plate 15 and the two support sections 5012 of the left clamping plate 16 cross each other. The clamping opening 502 is formed by the clamping sections 5011 of the left clamping plate 16 and the right clamping plate 15. Forming the intersecting support sections 5012 at both ends of the clamping plate 501 can improve the support effect and prevent the suspended end of the swing arm 504 from being pressed and deformed after being stressed. On the one hand, it will cause the shape of the clamping opening 502 to be unstable and lead to material leakage. On the other hand, it will cause the swing arm 504 to break. In a further design, when the bag clamping assembly 5 is in the clamped state, the support section 5012 of one clamping plate 501 is located between the support section 5012 of the other clamping plate 501 and the swing arm 504. For example, above the suspended end support section 5012 of the right clamping plate 15 is the swing arm 504 connected to the left clamping plate 16, and below is the non-suspended end support section 5012 of the left clamping plate 16.
[0037] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "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 invention 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 of the present invention.
[0038] In this specification, the schematic description of the terms does not necessarily refer to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments.
[0039] Taking the above-mentioned ideal embodiment of the present invention as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A clean and dust-free bag opening device, characterized in that: It includes a bag opening station, a return bin, and a silo; the bag opening station is composed of a bag support tray, a bag clamping assembly, and a hopper arranged from top to bottom in sequence, and a bag pressing cylinder is connected to the hopper. A sealing cylinder is connected between the fixed part of the bag clamping assembly and the hopper. The bag clamping assembly, the sealing cylinder, the ton bag, and the hopper enclose a dust removal chamber. A dust removal fan is arranged inside the return bin. The inlet of the return bin is connected to the sealing cylinder, and the outlet of the return bin is connected to the silo.
2. The dust-free bag opening device according to claim 1, wherein: The bag clamping assembly includes two clamping plates that can move relative to each other. When the bag clamping assembly clamps the ton bag, a clamping opening is left between the two clamping plates.
3. The dust-free bag-opening device according to claim 2, wherein: The surfaces of the clamping plates that form the clamping opening are arc surfaces or multi-segment flat surfaces.
4. The dust-free bag opening device according to claim 3, characterized in that: The clamping opening has an oval structure.
5. The cleaning and dust-free bag opening device according to claim 2, wherein: The bag clamping assembly further includes bag clamping cylinders connected to the clamping plates one by one, and the bag clamping cylinders drive the clamping plates to perform linear reciprocating motion.
6. The dust-free bag opening device according to claim 3, characterized in that: The bag clamping assembly further includes swing arms and bag clamping cylinders connected to the clamping plates one by one in sequence. The rotating shaft of the swing arm is rotatably connected to the bag clamping bottom plate. The bag clamping cylinder and the clamping plate are respectively connected to both sides of the swing arm, and the clamping plate is fixed to the swing arm.
7. The dust-free bag opening device according to claim 6, wherein: The swing arm has an arc surface arranged on the same side as the clamping plate, and the arc surface of the clamping plate protrudes from the arc surface of the swing arm.
8. The dust-free bag opening device according to claim 6, wherein: The clamping plate includes a clamping section and support sections located at both ends of the clamping section. The arc surface is located on the clamping section. When the bag clamping assembly is in the clamping state, the support sections of the two clamping plates are arranged staggeredly up and down.
9. The dust-free bag opening device according to claim 8, characterized in that: The rotating shaft of the swing arm is arranged close to the edge of the bag clamping bottom plate, and the two swing arms are arranged centrally symmetrically with the central axis of the hopper as the center.
10. The dust-free bag opening device according to claim 1, characterized in that: A door body that can be opened and closed is provided on the sealing cylinder.