Gate valve with bag clamping and sealing functions and bag opening station comprising gate valve

Abstract

The utility model discloses a gate valve with bag clamping and sealing functions and a bag opening station comprising the gate valve. The gate valve comprises a first plug board and a second plug board which are driven by driving equipment to slide relatively, the center of the first insertion plate is provided with an insertion groove facing an opening of the second insertion plate, a sealing plate matched with the end face of the second insertion plate is arranged in the insertion groove, and when the gate valve is in an open state, a channel allowing a ton bag opening to penetrate through is reserved between the end face of the first insertion plate and the end face of the second insertion plate. The second inserting plate can be inserted into the inserting groove to make contact with the sealing plate in an attached mode so that the ton bag can be folded and clamped when the gate valve is closed. The gate valve is provided with the two insertion plates which move relatively, and the insertion grooves are formed in the second insertion plate, so that the two insertion plates have the overlapped part when the gate valve is closed, a ton bag can be folded on the upper end face and the lower end face of the second insertion plate, and then the ton bag is clamped through butt joint of the second insertion plate and the sealing plate; and the clamping sealing performance is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bag opening station design, in particular to a plug-in valve with bag clamping and sealing functions and a bag opening station comprising the same. Background Art

[0002] The bag opening station is used to open ton bags. Since ton bags have a certain hardness, when the bag mouth is cut, if there is no external force vibration, the bag mouth will still remain closed. Therefore, in the traditional bag opening method, the bag mouth is often not closed, but the bag is opened manually. However, when the ton bag is filled with powder materials, such as lithium battery positive electrode materials, after the bag mouth is cut, a small amount of material will float out more or less, affecting the health of the staff. In addition, the traditional bag opening station can only adjust the unloading speed by adjusting the vibration frequency, and cannot accurately control the unloading capacity, nor can it suspend unloading in the middle. Utility Model Content

[0003] In order to solve the technical problems in the prior art that a small amount of material will float out when opening a ton bag, affecting the health of the workers, the bag opening diameter cannot be controlled to reduce, and the bag opening cannot be closed during material discharge, thereby controlling the material discharge capacity, the utility model provides a gate valve with a bag clamping and sealing function and a bag opening station comprising the same to solve the above problems.

[0004] The utility model provides a gate valve with a bag clamping and sealing function, comprising a first gate and a second gate driven by a driving device to slide relatively; the center of the first gate is provided with a slot opening toward the second gate, a sealing plate matched with the end face of the second gate is provided in the slot, and when the gate valve is in an open state, a passage for the bag mouth of a ton bag to pass through is reserved between the end faces of the first gate and the second gate.

[0005] The second plug plate can be inserted into the slot and fit into contact with the sealing plate, so that the bulk bag is folded and clamped when the plug plate valve is closed.

[0006] Furthermore, the opposing surfaces of the first plug plate and the second plug plate are both arcuate surfaces. When the plug plate valve is in an open state, the arcuate surfaces of the first plug plate and the second plug plate form a circle in axial projection.

[0007] Furthermore, the sealing plate and the second plug plate are located in the same plane, and one end of the sealing plate facing the second plug plate has the same shape as the arc surface of the second plug plate.

[0008] Furthermore, when the plug valve is in an open state, both ends of the second plug plate are located in the slot.

[0009] Furthermore, the driving device is a cylinder connected to the first plug plate and the second plug plate in a one-to-one correspondence.

[0010] Furthermore, the gate valve also includes a fixed frame, the driving device is fixed on the fixed frame, the center of the fixed frame has a positioning hole for the bag mouth of the ton bag to pass through, and the first gate is slidably matched with the fixed frame.

[0011] Furthermore, the size of the channel is not less than the size of the positioning hole.

[0012] Furthermore, the fixing frame includes an upper plate, a lower plate and two side plates connecting the upper plate and the lower plate, the first plug plate and the second plug plate are located between the upper plate and the lower plate, and positioning holes are provided on both the upper plate and the lower plate.

[0013] Furthermore, the size of the upper plate is larger than that of the lower plate.

[0014] The utility model also provides a bag opening station, comprising a material receiving tray, a material barrel and the above-mentioned gate valve with bag clamping and sealing function, wherein the material receiving tray, the gate valve and the material barrel are arranged in sequence from top to bottom.

[0015] The beneficial effects of the utility model are:

[0016] (1) The gate valve of the utility model has two gates that move relative to each other, and by arranging a slot on the second gate, the two gates have overlapping parts when the gate valve is closed, so that the ton bag can be folded at the upper and lower end surfaces of the second gate, and then the ton bag is clamped by docking the second gate with the sealing plate to ensure the sealing of the clamping.

[0017] (2) The utility model sets the opposing surfaces of the first plug plate and the second plug plate as arc-shaped surfaces. Compared with the horizontal end surfaces, the clamping surface is larger when closed, and a regular columnar channel can be formed when opened.

[0018] (3) The utility model adjusts the bag opening diameter or the opening and closing of the bag opening during material discharge through the relative movement of the two valve plates, thereby controlling the material discharge capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a three-dimensional diagram of the gate valve with bag clamping and sealing function described in the utility model;

[0021] Figure 2 It is a top view of the gate valve with bag clamping and sealing function described in the utility model;

[0022] Figure 3 This is a front view of the gate valve with bag clamping and sealing function described in the utility model;

[0023] Figure 4 It is a side view of the gate valve with bag clamping and sealing function described in the utility model;

[0024] Figure 5 When the gate valve is closed, Figure 2 AA section view;

[0025] Figure 6 yes Figure 5 The enlarged image at a in the middle;

[0026] Figure 7 is a schematic diagram of the matching relationship between the second slot and the sealing plate when the gate valve is closed;

[0027] Figure 8 When the gate valve is open, Figure 3 BB section view;

[0028] Fig. 9 When the gate valve is open, Figure 3 CC section view.

[0029] In the figure, 1. first plug plate, 2. second plug plate, 3. slot, 4. sealing plate, 5. channel, 6. curved surface, 7. driving device, 8. fixing frame, 801. upper plate, 802. lower plate, 803. side plate, 9. positioning hole, 10. ton bag, 11. slide groove. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] like Figure 1-Figure 5 As shown, a gate valve with bag clamping and sealing function includes two gates and a driving device 7 for driving the two gates to move relative to each other. The driving device 7 is preferably connected to the two gates in a one-to-one correspondence, that is, one driving device 7 controls the movement of one gate. For ease of description, the utility model names the two gates as the first gate 1 and the second gate 2. The driving device 7 can be a cylinder.

[0032] like Figure 8 As shown, the center of the first plug plate 1 has a slot 3 opening toward the second plug plate 2, and the slot 3 is used for the second plug plate 2 to be inserted. A sealing plate 4 is provided in the slot 3 to match the end face of the second plug plate 2. The matching means that the end faces of the second plug plate 2 and the sealing plate 4 have the same shape and can abut against each other, thereby clamping the ton bag 10. When the plug valve is in an open state, a channel 5 is left between the end faces of the first plug plate 1 and the second plug plate 2 for the bag mouth of the ton bag 10 to pass through.

[0033] The second plug plate 2 can be inserted into the slot 3 and fit into the sealing plate 4, so that the ton bag 10 is folded and clamped when the plug valve is closed. The clamping of the ton bag 10 is achieved by the abutment of the end surface of the second plug plate 2 and the sealing plate 4, and the folding of the ton bag 10 is achieved by the second plug plate 2 being inserted into the slot 3 and forming an overlapping surface with the first plug plate 1. Figure 6 As shown (due to the small space, the ton bag 10 is represented by a line), above the second plug plate 2, the ton bag 10 is pressed by the top surface of the second plug plate 2 and the inner top surface of the slot 3 to bend toward the sealing plate 4, and below the second plug plate 2, the ton bag 10 is pressed by the bottom of the second plug plate 2 and the inner bottom surface of the slot 3 to bend in the opposite direction toward the channel 5, thereby realizing the folding of the ton bag 10. Compared with conventional clamping, this folding process can effectively improve the sealing effect, and the fitting requirements between the second plug plate 2 and the sealing plate 4 can be reduced, thereby reducing the product precision requirements, and is particularly suitable for opening ton bags 10 filled with powder materials.

[0034] The opposite surfaces of the first plug plate 1 and the second plug plate 2 may be planes. At this time, when the plug plate valve is in an open state, the channel 5 is rectangular.

[0035] In the bag opening station, the openings for the ton bag 10 to pass through the other equipment are all circular, so the utility model preferably has the first plug plate 1 and the second plug plate 2 facing each other with an arc surface 6, such as Figure 8 and Fig. 9 As shown, the inner diameters of the arcuate surfaces 6 of the first plug plate 1 and the second plug plate 2 are the same. When the plug valve is in an open state, the arcuate surfaces 6 of the first plug plate 1 and the second plug plate 2 form a circle in axial projection, that is, the channel 5 is a circle (such as Fig. 9 As shown). In this way, the material can fall along the cylindrical channel 5, and the material will not be accumulated in the middle due to different flow diameters. In addition, when the area of ​​the plug plates is the same, the plug plates with arc surface 6 can clamp the bag opening with a larger diameter than the plug plates with flat end faces, thereby reducing the plane size of the plug valve.

[0036] The sealing plate 4 and the second plug-in plate 2 are located in the same plane, and the end of the sealing plate 4 facing the second plug-in plate 2 has the same shape as the arc surface 6 of the second plug-in plate 2. When the second plug-in plate 2 enters the slot 3, the second plug-in plate 2 and the sealing plate 4 are assembled to form a complete rectangular parallelepiped (such as Figure 7 as shown).

[0037] When the gate valve is in an open state, the first gate plate 1 and the second gate plate 2 can be separated from each other. In a preferred embodiment, when the gate valve is in an open state, both ends of the second gate plate 2 are located in the slot 3. Figure 8 As shown, this ensures that the second plugboard 2 is always in sliding cooperation with the first plugboard 1 , thereby avoiding jamming caused by the second plugboard 2 entering and exiting the slot 3 .

[0038] In a further design, the gate valve further comprises a fixing frame 8, the driving device 7 is fixed on the fixing frame 8, the center of the fixing frame 8 has a positioning hole 9 for the bag mouth of the ton bag 10 to pass through, and the first gate 1 is slidably matched with the fixing frame 8. Figure 4 and Figure 8 As shown, the fixing frame 8 can be fixed to the upper equipment, and a slide groove 11 is fixed to one end of the fixing frame 8 near the first plug plate 1. The first plug plate 1 slides along the slide groove 11, and the positioning hole 9 is used for the ton bag 10 to pass through, which can play a preliminary positioning role for the ton bag 10. When in use, when the plug plate valve is opened, the bag mouth of the ton bag 10 is first passed through the positioning hole 9, and then the plug plate valve is closed to clamp the bag mouth of the ton bag 10.

[0039] The size of the channel 5 is preferably not less than the size of the positioning hole 9. In this embodiment, the size of the channel 5 is similar to the size of the positioning hole 9, so that a vertical cylindrical pipeline is formed when the gate valve is opened, which is conducive to the vertical fall of the material.

[0040] The fixing frame 8 may be, but is not limited to, the following structure: including an upper plate 801, a lower plate 802, and two side plates 803 connecting the upper plate 801 and the lower plate 802, the first plug plate 1 and the second plug plate 2 are located between the upper plate 801 and the lower plate 802, and positioning holes 9 are provided on the upper plate 801 and the lower plate 802. The upper plate 801 and the lower plate 802 are both horizontal panels and can be used as installation planes, such as Figure 5 As shown, the driving device 7 is installed at the bottom of the upper plate 801.

[0041] During installation, the upper plate 801 is fixed to the upper equipment, and the lower plate 802 is suspended in the air. To avoid dust accumulation on the top of the upper plate 801 , the size of the upper plate 801 is preferably larger than that of the lower plate 802 , so that the upper plate 801 can cover the lower plate 802 .

[0042] The utility model also proposes a bag opening station, comprising a receiving tray, a barrel and the above-mentioned gate valve with bag clamping and sealing function, wherein the receiving tray, gate valve and barrel are arranged in sequence from top to bottom. The gate valve is fixed at the bottom of the receiving tray, and after the ton bag 10 is placed on the receiving tray, the bag opening extends into the barrel through the center of the receiving tray and the center of the gate valve, and the gate valve is closed before manual bag opening, and then the bag opening is cut below the gate valve, and finally the gate valve is opened to start dropping the material.

[0043] In the description of the present invention, it is necessary to understand that the terms "center", "upper", "lower", "inner", "outer", "axial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] Furthermore, the terms “first”, “second”, etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

[0045] In this specification, the schematic representation of the terms does not necessarily refer to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments.

[0046] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A gate valve with bag clamping and sealing function, characterized in that: It comprises a first plug plate (1) and a second plug plate (2) which are driven by a driving device (7) to slide relative to each other; The center of the first plug plate (1) has a slot (3) opening toward the second plug plate (2), and a sealing plate (4) matching the end surface of the second plug plate (2) is arranged in the slot (3); when the plug plate valve is in an open state, a passage (5) for the mouth of a ton bag (10) to pass through is left between the end surfaces of the first plug plate (1) and the second plug plate (2); The second plug plate (2) can be inserted into the slot (3) and fit into contact with the sealing plate (4), so that the bulk bag (10) is folded and clamped when the plug plate valve is closed.

2. The gate valve with bag clamping and sealing function according to claim 1, characterized in that: The opposing surfaces of the first plug plate (1) and the second plug plate (2) are both arc-shaped surfaces (6). When the plug plate valve is in an open state, the arc-shaped surfaces (6) of the first plug plate (1) and the second plug plate (2) form a circle in axial projection.

3. The gate valve with bag clamping and sealing function according to claim 2 is characterized in that: The sealing plate (4) and the second plug plate (2) are located in the same plane, and the end of the sealing plate (4) facing the second plug plate (2) has the same shape as the arc-shaped surface (6) of the second plug plate (2).

4. The gate valve with bag clamping and sealing function according to claim 1, characterized in that: When the gate valve is in an open state, both ends of the second gate (2) are located in the slot (3).

5. The gate valve with bag clamping and sealing function according to claim 1, characterized in that: The driving device (7) is a cylinder connected to the first plug plate (1) and the second plug plate (2) in a one-to-one correspondence.

6. The gate valve with bag clamping and sealing function according to claim 1, characterized in that: The gate valve further comprises a fixing frame (8), the driving device (7) being fixed on the fixing frame (8), the fixing frame (8) having a positioning hole (9) at its center for the mouth of a ton bag (10) to pass through, and the first gate (1) being slidably matched with the fixing frame (8).

7. The gate valve with bag clamping and sealing function according to claim 6, characterized in that: The size of the channel (5) is not smaller than the size of the positioning hole (9).

8. The gate valve with bag clamping and sealing function according to claim 6, characterized in that: The fixing frame (8) comprises an upper plate (801), a lower plate (802) and two side plates (803) connecting the upper plate (801) and the lower plate (802); the first plug plate (1) and the second plug plate (2) are located between the upper plate (801) and the lower plate (802); and positioning holes (9) are provided on the upper plate (801) and the lower plate (802).

9. The gate valve with bag clamping and sealing function according to claim 8, characterized in that: The size of the upper plate (801) is greater than the size of the lower plate (802).

10. A bag opening station, characterized in that: It comprises a material receiving tray, a material barrel and a gate valve with bag clamping and sealing function as claimed in any one of claims 1 to 9, wherein the material receiving tray, the gate valve and the material barrel are arranged in sequence from top to bottom.

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