A semi-automatic bag opening station

Abstract

The application discloses a kind of semi-automatic bag opening station, including rack, receiving tray and stock bin, the rack includes by upper and lower arrangement rotating arm connecting layer, receiving layer and discharging layer, the rotating arm connecting layer is rotationally connected with the rotating transfer assembly of hanging ton bag, receiving tray is installed in receiving layer, and stock bin is installed in discharging layer;The rotating transfer assembly rotates around the rotation axis of rack width direction, when ton bag is located above receiving tray, the rotating transfer assembly only occupies the length direction space of rack.The semi-automatic bag opening station disclosed in the application adopts the mode of rotating transfer to transfer ton bag to above rack, when ton bag is located above receiving tray, the rotating transfer assembly does not occupy additional length direction space, compared with traditional straight line conveying, fixed straight line track does not need to be set, and the occupied space is small.

Description

Technical Field

[0001] This invention relates to the field of bag opening station design technology, and in particular to a semi-automatic bag opening station, mainly used for conveying lithium battery cathode materials. Background Technology

[0002] Existing bag-opening stations often use horizontal conveying during the hoisting process, resulting in a long horizontal conveying track at the top of the station, which occupies a lot of space. The bag opening is mostly done manually. Because the packaging bag itself has a certain rigidity, the material will not pour out after the bag opening is cut. It often needs to be shaken to slowly discharge. However, there is still a small amount of material leakage when the bag is cut manually, which not only affects the environment but also harms human health. This is especially true for powder materials containing heavy metals, such as those in the lithium battery industry, where the sealing requirements during the conveying process are even higher. Summary of the Invention

[0003] In order to solve the technical problems of large space occupation and poor sealing performance of bag opening stations in the prior art, the present invention provides a semi-automatic bag opening station to solve the above problems.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a semi-automatic bag opening station, including a frame, a receiving tray and a hopper. The frame includes a rotating arm connecting layer, a receiving layer and a discharging layer arranged from top to bottom. The rotating arm connecting layer is rotatably connected to a rotating transfer component for suspending ton bags. The receiving tray is installed on the receiving layer and the hopper is installed on the discharging layer. The rotating transfer component rotates around a rotation axis in the width direction of the frame. When the ton bag is above the receiving tray, the rotating transfer component only occupies space in the length direction of the frame.

[0005] Furthermore, a bag-closing gate is fixed below the receiving tray. After the bag opening of the ton bag is inserted into the hopper, the bag-closing gate is closed before the bag is opened to clamp the bag opening. The bag-closing gate is opened after the bag is opened below it.

[0006] Furthermore, the rotating arm connecting layer has a C-shaped structure, and the rotating transfer assembly includes a rotating arm, a tailstock, a hoisting assembly, and a lifting assembly. A rotating arm is connected to each side of the tailstock, the rotating shaft is connected to the rotating arm, and the lifting assembly is connected to the rotating arm. The lifting assembly drives the hoisting assembly to move up and down. When it is time to load or unload the ton bag, the rotating transfer assembly rotates to the side of the opening direction of the C-shaped structure. When the ton bag is above the receiving tray, the tailstock is mounted on the frame.

[0007] Furthermore, the receiving tray is composed of multiple panels connected in sequence to form a polygonal structure, with a discharge port in the center of the receiving tray.

[0008] Furthermore, the bag-closing gate includes two parallel gate plates and a drive cylinder that drives the two gate plates to move closer or further apart.

[0009] Furthermore, the receiving layer includes an upper beam and a ton bag platform fixed above the upper beam. The receiving tray is fixed on the ton bag platform, the driving cylinder is fixed below the upper beam, and a slide rail that slides with the gate is also fixed below the upper beam.

[0010] Furthermore, the hopper includes an inner cylinder, an outer cylinder, and a pressure cap. The inner cylinder is fixed inside the outer cylinder, the outer cylinder is fixed to the material feeding layer, and the pressure cap is located at the top of the inner and outer cylinders and can move up and down. The pressure cap clamps the bag opening of the ton bag between the pressure cap and the outer circumference of the inner cylinder.

[0011] Furthermore, the pressure cap includes an inner ring of a pressure plate and a locking pressure plate fixed to the outer periphery of the inner ring of the pressure plate. The inner ring of the pressure plate extends into the gap between the inner cylinder and the outer cylinder. The bag opening of the ton bag is clamped between the inner ring of the pressure plate and the inner cylinder, and the locking pressure plate presses against the upper end face of the outer cylinder.

[0012] Furthermore, the bottom of the outer cylinder is provided with a flange for connection to the downstream receiving equipment, and the bottom of the inner cylinder extends out of the outer cylinder.

[0013] Furthermore, an inflatable sealing ring is provided on the outer circumferential surface of the inner ring of the pressure plate located below the locking pressure plate, and the inflatable sealing ring fills the radial gap between the inner cylinder and the outer cylinder.

[0014] The beneficial effects of this invention are:

[0015] (1) The semi-automatic bag opening station of the present invention uses a rotary transfer method to transfer the ton bag to the top of the frame. When the ton bag is above the receiving tray, the rotary transfer component does not occupy additional length space. Compared with the traditional linear conveying, it does not need to set up a fixed linear track and occupies less space.

[0016] (2) The present invention has a bag closing gate below the receiving tray, which clamps the bag opening before opening the bag, so that there will be no material leakage during the manual bag opening process.

[0017] (3) The hopper in this invention has a double-layer structure with better sealing. The bag opening of the ton bag is put on the outside of the inner cylinder and then pressed with a cap. The ton bag will not come off the hopper, and the degree of automation is high. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a perspective view of a specific embodiment of the semi-automatic bag-opening station described in this invention;

[0020] Figure 2 This is a front view of the frame in this invention;

[0021] Figure 3 This is a side view of a specific embodiment of the semi-automatic bag-opening station described in this invention;

[0022] Figure 4 yes Figure 3 Sectional view along axis AA;

[0023] Figure 5 yes Figure 3 BB-direction sectional view;

[0024] Figure 6 yes Figure 5 Enlarged view of point a in the middle;

[0025] Figure 7 yes Figure 5 Enlarged view at point b in the middle;

[0026] Figure 8 yes Figure 5 Enlarged view at point c;

[0027] Figure 9 This is a schematic diagram of the installation of the receiving tray in this invention;

[0028] Figure 10 This is a schematic diagram of the hopper when the pressure cap is in the closed state in this invention.

[0029] In the diagram, 1. Frame; 101. Rotating arm connecting layer; 1011. Baffle; 1012. Base support; 1013. Shock-absorbing pad; 102. Receiving layer; 1021. Upper beam; 1022. Ton bag platform; 103. Discharge layer; 2. Receiving tray; 201. Discharge port; 3. Hopper; 301. Inner cylinder; 302. Outer cylinder; 303. Pressure cap; 3031. Inner ring of pressure plate; 3032. Locking pressure plate; 3033. Filling... 4. Air seal ring, 304 stainless steel, flange, 305 telescopic cylinder, 5. rotating shaft, 6. bag closing gate, 501. gate plate, 502. drive cylinder, 503. slide rail, 6. rotating arm, 7. tailstock, 8. lifting assembly, 801. crossbeam, 802. lifting frame, 803. lifting lug, 9. lifting assembly, 901. lifting cylinder, 902. guide rail, 903. slider, 10. retainer, 11. drive motor. Detailed Implementation

[0030] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] like Figures 1-5As shown, a semi-automatic bag opening station includes a frame 1, a receiving tray 2, and a hopper 3. The frame 1 includes a rotating arm connecting layer 101, a receiving layer 102, and a discharging layer 103 arranged from top to bottom. The rotating arm connecting layer 101 is rotatably connected to a rotating transfer assembly for suspending ton bags. The receiving tray 2 is installed on the receiving layer 102. Compared with a traditional frame 1, the length of the frame 1 is reduced. The hopper 3 is installed on the discharging layer 103. The rotating transfer assembly rotates around a rotating axis 4 in the width direction of the frame 1. When the ton bag is above the receiving tray 2, the rotating transfer assembly only occupies the space in the length direction of the frame 1.

[0032] Since the rotary transfer assembly is a rotary motion, the only fixed part during the motion is the rotating shaft 4 inside the frame 1. When it is necessary to hang or remove ton bags, the rotary transfer assembly is rotated around the rotating shaft 4 to a spacious area in front of the frame 1. After bagging or unloading is completed, the rotary transfer assembly can be rotated around the rotating shaft 4 onto the frame 1. That is, in the unloading working state, the rotary transfer assembly will not occupy space beyond the length of the frame 1. In contrast, in the traditional horizontal conveying method, even in the unloading working state, the horizontal conveying track at the top will always exist. Therefore, the size of the entire bag opening station of the present invention can be greatly reduced, improving the utilization rate of workshop space and facilitating transportation.

[0033] To address the issue of minor material leakage during manual bag opening in traditional bag opening stations, this invention offers the following improvements: A bag closing gate 5 is fixed below the receiving tray 2. After the bag opening extends into the hopper 3, the bag closing gate 5 is closed before opening the bag, clamping the bag opening. The bag is then opened from below the closing gate 5, after which the closing gate 5 is opened. Using the bag closing gate 5 allows for manual opening of the bag while it remains sealed. Once the bag opening is connected to the hopper 3, the closing gate 5 is opened, preventing material leakage and optimizing the working environment.

[0034] Rotary transfer assembly:

[0035] The rotating arm connecting layer 101 has a C-shaped structure. The rotating transfer assembly includes a rotating arm 6, a tailstock 7, a hoisting assembly 8, and a lifting assembly 9. A rotating arm 6 is connected to each side of the tailstock 7. The rotating shaft 4 is connected to the rotating arm 6. The lifting assembly 9 is connected to the rotating arm 6. The lifting assembly 9 drives the hoisting assembly 8 to move up and down. When preparing to load or unload ton bags, the rotating transfer assembly rotates to the side of the opening direction of the C-shaped structure. When the ton bag is above the receiving tray 2, the tailstock 7 is mounted on the frame 1.

[0036] like Figure 1 , Figure 3 and Figure 4As shown, the C-shaped opening of the rotating arm connecting layer 101 faces the front of the frame 1, allowing the rotating transfer assembly to rotate to the front of the frame 1. A baffle 1011 is provided behind the rotating arm connecting layer 101. When the tailstock 7 is placed on the frame 1, the baffle 1011 can cover the tailstock 7, thereby enclosing the rotating arm 6 and the tailstock 7 within the frame 1. A base support 1012 is provided inside the baffle 1011, and the tailstock 7 is placed on the base support 1012. A shock-absorbing pad 1013 that contacts the tailstock 7 can be provided on the base support 1012. The rotating shaft 4 is located near the lower part of the rotating arm 6, so that the height will not increase significantly when the rotating transfer assembly rotates. Figure 3 The state shown is approximately the maximum height of the bag-opening station, which not only reduces the length space under normal conditions, but also does not occupy additional height space.

[0037] A retainer 10 is preferably connected between the rotating arm 6 and the tailstock 7 to ensure structural strength. The retainer 10 can be an X-shaped cross structure.

[0038] Lifting component 9:

[0039] like Figure 6 As shown, the lifting assembly 9 includes a lifting cylinder 901 fixed to the rotating arm 6, a guide rail 902, and a slider 903 that slides with the guide rail 902. The telescopic rod of the lifting cylinder 901 is connected to the slider 903, as shown. Figure 1 , Figure 3 and Figure 5 As shown, each of the two rotating arms 6 is equipped with a lifting component 9, and the hoisting component 8 is driven to lift synchronously by the two lifting components 9.

[0040] Lifting component 8:

[0041] like Figure 3 and Figure 6 As shown, the hoisting assembly 8 includes a crossbeam 801 and a hoisting frame 802 rotatably connected below the crossbeam 801. The crossbeam 801 is fixed between two sliders 903. The hoisting frame 802 is provided with four lifting lugs 803. When the rotating arm 6 rotates, the hoisting frame 802 can always remain vertical under the action of gravity.

[0042] The rotating arm 6 can achieve rotational motion by combining the drive motor 11 with gear transmission.

[0043] Receiving tray 2:

[0044] like Figure 9 As shown, the receiving tray 2 gradually slopes downward from the outer periphery to the center, guiding the material to move towards the central discharge port 201. The receiving tray 2 can be a frustum-shaped structure. In a preferred embodiment of the present invention, the receiving tray 2 is formed by connecting multiple panels in sequence to form a polygonal structure. This can shape the bottom of the ton bag into a regular polygonal structure, which helps to drop materials in an orderly manner and also facilitates bag sorting.

[0045] The receiving layer 102 includes an upper beam 1021 and a ton bag platform 1022 fixed above the upper beam 1021. The receiving tray 2 is fixed on the ton bag platform 1022. Figure 9 As shown, the ton bag platform 1022 supports the receiving tray 2. A vibrator can be installed under the ton bag platform 1022 to vibrate the receiving tray 2 during the unloading process. Part of the panel of the receiving tray 2 does not contact the ton bag platform 1022, leaving space for vibration.

[0046] Closing gate 5:

[0047] The bag-closing gate 5 includes two parallel gate plates 501 and a drive cylinder 502 that moves the two gate plates 501 closer together or further apart. For example... Figure 7 As shown, the drive cylinder 502 is fixed below the upper beam 1021, and a slide rail 503 that slides and engages with the gate 501 is also fixed below the upper beam 1021. The length of the gate 501 is greater than the radial dimension of the discharge port 201, which can completely clamp the opening of the ton bag. The gate 501 is positioned close to the discharge port 201. When the ton bag is placed on the receiving tray 2, the drive cylinder 502 immediately clamps the ton bag, sealing all the material on the receiving tray 2. There is no leakage of material in the ton bag located below the gate 501, allowing for manual bag cutting and connection of the hopper 3.

[0048] In traditional bag-opening stations, ton bags are either directly placed over the outside of the hopper 3 and manually tied, or stuffed inside the hopper 3. These methods can lead to dust leakage. To further improve the sealing effect, this invention also improves the hopper 3, with the specific structure as follows: Figure 7 , Figure 8 and Figure 10 The hopper 3 includes an inner cylinder 301, an outer cylinder 302, and a pressure cap 303. The inner cylinder 301 is fixed inside the outer cylinder 302, and the outer cylinder 302 is fixed to the material feeding layer 103. The pressure cap 303 is located at the top of the inner cylinder 301 and the outer cylinder 302 and can move up and down. The pressure cap 303 clamps the bag opening of the ton bag between the pressure cap 303 and the outer circumferential surface of the inner cylinder 301.

[0049] The inner cylinder 301 and outer cylinder 302 form an inner and outer layer structure with radial gaps. The inner cylinder 301 is used to connect to the bag opening of the ton bag, and its central channel is the material discharge channel. The outer cylinder 302 is used to connect to downstream equipment and provides a sealing protection function. Preferably, the bottom of the inner cylinder 301 extends beyond the outer cylinder 302, extending the material discharge channel into the interior of the downstream receiving equipment to prevent leakage at the inlet. The up-and-down movement of the pressure cap 303 can automatically tighten the bag opening. Compared with manual tightening, the pressure cap 303 can make the ton bag fit tightly against the outer circumferential surface of the inner cylinder 301 in the circumferential direction, resulting in better sealing and higher work efficiency. Furthermore, the pressure cap 303 can also be placed on top of the outer cylinder 302 to prevent material leakage upwards. Figure 10 As shown, the inner cylinder 301 and the outer cylinder 302 are connected vertically. The bottom of the outer cylinder 302 is provided with a flange 304 that connects to the lower receiving equipment. If material leaks out of the inner cylinder 301, it can be blocked by the pressure cap 303 if it is upward, and it can still enter the lower receiving equipment if it is downward.

[0050] The gland 303 may, but is not limited to, adopt the following structure: such as Figure 7 As shown, the device includes an inner ring 3031 of the pressure plate and a locking pressure plate 3032 fixed to the outer periphery of the inner ring 3031. The inner ring 3031 extends into the gap between the inner cylinder 301 and the outer cylinder 302. The opening of the ton bag is clamped between the inner ring 3031 and the inner cylinder 301. The locking pressure plate 3032 presses against the upper end face of the outer cylinder 302 (e.g., ...). Figure 10 (As shown). To further prevent material leakage through the locking plate 3032, the following improvements can be made: an inflatable sealing ring 3033 is provided on the outer circumference of the inner ring 3031 of the pressure plate located below the locking plate 3032. The inflatable sealing ring 3033 fills the radial gap between the inner cylinder 301 and the outer cylinder 302, thereby preventing material leakage upward through the two structures of the inflatable sealing ring 3033 and the locking plate 3032.

[0051] like Figure 10 As shown, a telescopic cylinder 305 is fixed to the outside of the outer cylinder 302. The telescopic rod of the telescopic cylinder 305 is connected to the locking plate 3032 of the pressure cover 303, which drives the pressure cover 303 to move up and down relative to the inner cylinder 301 and the outer cylinder 302.

[0052] Working principle:

[0053] Working process of the rotary transfer component: In the initial state, the bag opening station is in the state shown in the figure. When it is necessary to lift the ton bag, the drive motor 11 is rotated to make the rotating arm 6 rotate in front of the frame 1. The lifting frame 802 rotates relative to the crossbeam 801 under the action of gravity to keep the end face horizontal. After the ton bag is loaded, the drive motor 11 is rotated in the opposite direction to make the tail seat 7 rest on the bottom support 1012 again. At this time, the ton bag is located directly above the receiving tray 2. Then, the lifting cylinder 901 is adjusted to place the ton bag on the receiving tray 2, ready to open the bag and unload the material.

[0054] Bag opening and unloading process: After the ton bag is placed on the receiving tray 2, the bag closing gate 5 is immediately closed to seal the material on the receiving tray 2. Then, the bag opening is manually cut open below the gate plate 501. Subsequently, the telescopic cylinder 305 is activated to lift the pressure cover 303 upward, so that the bag opening is covered by the inner cylinder 301. The telescopic cylinder 305 moves in the opposite direction to drive the pressure cover 303 downward to press down on the bag opening. Then, the bag closing gate 5 is opened to start unloading.

[0055] In the description of this invention, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0056] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0057] In this specification, the illustrative expressions of the terms do not necessarily refer to the same embodiments. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments.

[0058] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A semi-automatic bag-opening station, characterized in that: The machine includes a frame (1), a receiving tray (2) and a hopper (3). The frame (1) includes a rotating arm connecting layer (101), a receiving layer (102) and a discharging layer (103) arranged from top to bottom. The rotating arm connecting layer (101) is rotatably connected to a rotating transfer assembly for hanging ton bags. The receiving tray (2) is installed on the receiving layer (102) and the hopper (3) is installed on the discharging layer (103). The rotary transfer assembly rotates around the rotation axis (4) in the width direction of the frame (1). When the ton bag is above the receiving tray (2), the rotary transfer assembly only occupies the space in the length direction of the frame (1). The rotary arm connecting layer (101) has a C-shaped structure. The rotary transfer assembly includes a rotary arm (6), a tailstock (7), a hoisting assembly (8), and a lifting assembly (9). A rotary arm (6) is connected to each side of the tailstock (7). The rotation axis (4) is connected to the rotary arm (6). The lifting assembly (9) is connected to the rotary arm (6). The lifting assembly (9) drives the hoisting assembly (8) to move up and down. When it is time to load or unload the ton bag, the rotary transfer assembly rotates to the side of the opening direction of the C-shaped structure. When the ton bag is above the receiving tray (2), the tailstock (7) is mounted on the frame (1).

2. The semi-automatic bag-opening station according to claim 1, characterized in that: The receiving tray (2) is fixed with a bag closing gate (5). After the bag opening of the ton bag is inserted into the hopper (3), the bag closing gate (5) is closed before the bag is opened to clamp the bag opening. After the bag is opened below the bag closing gate (5), the bag closing gate (5) is opened.

3. The semi-automatic bag-opening station according to claim 1, characterized in that: The receiving tray (2) is a polygonal structure formed by connecting multiple panels in sequence, and the center of the receiving tray (2) has a discharge port (201).

4. The semi-automatic bag-opening station according to claim 2, characterized in that: The bag-closing gate (5) includes two parallel gate plates (501) and a drive cylinder (502) that drives the two gate plates (501) to move closer or further apart.

5. The semi-automatic bag-opening station according to claim 4, characterized in that: The receiving layer (102) includes an upper beam (1021) and a ton bag platform (1022) fixed above the upper beam (1021). The receiving tray (2) is fixed on the ton bag platform (1022). The driving cylinder (502) is fixed below the upper beam (1021). A slide rail (503) that slides with the gate plate (501) is also fixed below the upper beam (1021).

6. The semi-automatic bag-opening station according to claim 1, characterized in that: The hopper (3) includes an inner cylinder (301), an outer cylinder (302) and a pressure cap (303). The inner cylinder (301) is fixed inside the outer cylinder (302), and the outer cylinder (302) is fixed to the material feeding layer (103). The pressure cap (303) is located at the top of the inner cylinder (301) and the outer cylinder (302) and can move up and down. The pressure cap (303) clamps the bag opening of the ton bag between the pressure cap (303) and the outer circumference of the inner cylinder (301).

7. The semi-automatic bag-opening station according to claim 6, characterized in that: The pressure cap (303) includes an inner ring (3031) of the pressure plate and a locking pressure plate (3032) fixed to the outer periphery of the inner ring (3031). The inner ring (3031) of the pressure plate extends into the gap between the inner cylinder (301) and the outer cylinder (302). The bag opening of the ton bag is sandwiched between the inner ring (3031) of the pressure plate and the inner cylinder (301). The locking pressure plate (3032) presses against the upper end face of the outer cylinder (302).

8. The semi-automatic bag-opening station according to claim 6, characterized in that: The bottom of the outer cylinder (302) is provided with a flange (304) for connection with the lower receiving equipment, and the bottom of the inner cylinder (301) extends out of the outer cylinder (302).

9. The semi-automatic bag-opening station according to claim 7, characterized in that: An inflatable sealing ring (3033) is provided on the outer circumferential surface of the inner ring (3031) of the locking plate (3032) located below the locking plate (3032). The inflatable sealing ring (3033) fills the radial gap between the inner cylinder (301) and the outer cylinder (302).

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