Valve port cutting and positioning structure of valve port bag

Abstract

The utility model discloses a valve port cutting and positioning structure of a valve bag, which comprises a cutting mechanism arranged on an operation table, a transverse positioning mechanism used for positioning the side edge of the valve port of the valve bag and a longitudinal positioning mechanism used for positioning the long side edge of the valve bag, and the side edge of the valve bag is adjacent to the long side edge of the valve bag. The transverse positioning mechanism and the longitudinal positioning mechanism are both movably installed on the operation table, and the installation direction of the transverse positioning mechanism is perpendicular to the installation direction of the longitudinal positioning mechanism. The valve bag abuts against the transverse positioning mechanism and the longitudinal positioning mechanism, the valve port side edge and one side long edge of the valve bag can be positioned, and the transverse positioning mechanism and the longitudinal positioning mechanism are movably installed on the operation table and can be adjusted according to the size of the valve bag.

Description

Technical Field

[0001] The utility model relates to the technical field of valve bag cutting, in particular to a valve port cutting and positioning structure of a valve bag. Background Art

[0002] Valve bags, commonly known as paste-bottom bags, are a popular environmentally friendly packaging bag that can be fed from the top or bottom valve port and filled with materials using special filling equipment to form a cube. However, before installing the valve port structure on the valve bag, it is necessary to cut out the installation position of the valve port structure at the corresponding position. The existing cutting structure generally moves the valve bag under the cutting blade and then cuts out the installation position of the valve port structure.

[0003] However, the existing cutting mechanism does not have a positioning structure for the valve bag, and cannot accurately move the valve port position of the valve bag to the blade fire protection, resulting in cutting errors. Utility Model Content

[0004] The purpose of the utility model is to provide a valve opening cutting and positioning structure for a valve bag. By placing the valve bag against a transverse positioning mechanism and a longitudinal positioning mechanism, the valve opening side and one long side of the valve bag can be positioned respectively. The transverse positioning mechanism and the longitudinal positioning mechanism are movably mounted on an operating table and can be adjusted according to the size of the valve bag.

[0005] In order to solve the above technical problems, the utility model adopts the following solutions:

[0006] The present application provides a valve port cutting and positioning structure for a valve bag, comprising a cutting mechanism arranged on an operating table, a transverse positioning mechanism for positioning the side where the valve port of the valve bag is located, and a longitudinal positioning mechanism for positioning the long side of the valve bag, the side where the valve bag is located and the long side of the valve bag are adjacent, the transverse positioning mechanism and the longitudinal positioning mechanism are both movably mounted on the operating table, and the installation directions of the transverse positioning mechanism and the longitudinal positioning mechanism are perpendicular.

[0007] In some specific embodiments, the transverse positioning mechanism and the longitudinal positioning mechanism both include a vertical positioning plate and a horizontal positioning plate. The horizontal positioning plate is movably mounted on the operating table, and the vertical positioning plate is vertically fixed on the long side of the horizontal positioning plate perpendicular to the plane of the operating table.

[0008] In some specific embodiments, the transverse positioning mechanism and the longitudinal positioning mechanism also include fasteners, and positioning hole grooves are opened at both ends of the horizontal positioning plate. The positioning hole grooves are opened along the short side direction of the horizontal positioning plate, and a positioning hole is opened on the operating table. The fasteners pass through the positioning hole grooves and are fixed in the positioning holes.

[0009] In some specific implementations, the fastener includes a screw and a washer head nut threadedly connected to the screw, the screw passes through the positioning hole slot and the positioning hole in sequence, and the washer head nut is fixed above the positioning hole slot.

[0010] In some specific implementations, the vertical positioning plate and the horizontal positioning plate are welded into an L-shape, and a reinforcement plate is welded at the welding point between the vertical positioning plate and the horizontal positioning plate.

[0011] In some specific implementations, a pad is fixed on the operating table directly below the cutting mechanism, and a positioning groove is provided on the pad directly below the cutting blade.

[0012] In some specific embodiments, a fixing mechanism for fixing the valve bag is further included, wherein the fixing mechanism is fixed on the operating table close to the other long side of the valve bag, and the fixing mechanism is parallel to the longitudinal positioning mechanism.

[0013] In some specific embodiments, the fixing mechanism includes a pin, a pressure plate and two fixed blocks. The fixed block is fixedly mounted on an operating table. The pin passes through the end of a long side of the pressure plate. Both ends of the pin are respectively fixed on the two fixed blocks. The pressure plate is movably connected to the pin, and the pressure plate can rotate around the pin.

[0014] Beneficial effects of the utility model:

[0015] The utility model provides a valve opening cutting and positioning structure for a valve bag. By placing the valve bag against a transverse positioning mechanism and a longitudinal positioning mechanism, the valve opening side and one long side of the valve bag can be positioned respectively. The transverse positioning mechanism and the longitudinal positioning mechanism are movably mounted on an operating table and can be adjusted according to the size of the valve bag. When adjusting, it is only necessary to move the horizontal positioning plate to a suitable position, and then tighten the washer head nut to fix the horizontal positioning plate.

[0016] The present application also provides a fixing mechanism to fix the valve bag to prevent the valve bag from moving when the cutting mechanism cuts the valve opening of the valve bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A top view of the cutting and positioning structure provided in an embodiment of the utility model;

[0018] Figure 2 A top view of the cutting and positioning structure provided by the embodiment of the utility model when a valve bag is placed;

[0019] Figure 3 A schematic diagram of the structure of the lateral positioning mechanism and the longitudinal positioning mechanism provided in the embodiment of the utility model;

[0020] Figure 4 A schematic diagram of a fixing mechanism provided in an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1-operating table, 2-cutting mechanism, 21-pad, 22-cutting knife, 3-lateral positioning mechanism, 4-longitudinal positioning mechanism, 5-vertical positioning plate, 6-horizontal positioning plate, 61-fastener, 62-positioning hole groove, 63-reinforcement plate, 7-fixing mechanism, 71-pin shaft, 72-pressing plate, 73-fixing block, 8-valve bag. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0024] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The present invention is described in detail below with reference to the accompanying drawings and in combination with embodiments:

[0027] Embodiment 1:

[0028] like Figure 1 to Figure 2 As shown, the present embodiment provides a valve port cutting and positioning structure for a valve bag 8, comprising a cutting mechanism 2 arranged on an operating table 1, a transverse positioning mechanism 3 for positioning the side where the valve port of the valve bag 8 is located, and a longitudinal positioning mechanism 4 for positioning the long side of the valve bag 8, the side where the valve bag 8 is located and the long side of the valve bag 8 are adjacent, the transverse positioning mechanism 3 and the longitudinal positioning mechanism 4 are both movably mounted on the operating table 1, and the installation directions of the transverse positioning mechanism 3 and the longitudinal positioning mechanism 4 are perpendicular.

[0029] like Figure 3 As shown, the transverse positioning mechanism 3 and the longitudinal positioning mechanism 4 both include a vertical positioning plate 5 and a horizontal positioning plate 6. The horizontal positioning plate 6 is movably mounted on the operating table 1. The vertical positioning plate 5 is vertically fixed to the long side of the horizontal positioning plate 6 perpendicular to the plane where the operating table 1 is located. The vertical positioning plate 5 and the horizontal positioning plate 6 can be integrally formed into an L shape by welding. In order to increase the connection strength, a reinforcing plate 63 is welded at the welding point between the vertical positioning plate 5 and the horizontal positioning plate 6.

[0030] When installing the transverse positioning mechanism 3, it is necessary to make the vertical positioning plate 5 rest against the side where the valve mouth of the valve bag 8 is located. Therefore, the horizontal positioning plate 6 of the transverse positioning mechanism 3 is set in the direction of the cutting mechanism 2, and the horizontal positioning plate 6 can move along the direction of the cutting mechanism 2; when installing the longitudinal positioning mechanism 4, it is also necessary to make the vertical positioning plate 5 rest against the long side of the valve bag 8. Therefore, the horizontal positioning plate 6 of the longitudinal positioning mechanism 4 is set toward the side facing away from the valve bag 8, and the horizontal positioning plate 6 can move in the direction approaching the valve bag 8.

[0031] In order to meet the positioning requirements of valve bags 8 of different sizes, the positions of the transverse positioning mechanism 3 and the longitudinal positioning mechanism 4 need to be adjusted so that the vertical positioning plate 5 of the transverse positioning mechanism 3 and the vertical positioning plate 5 of the longitudinal positioning mechanism 4 are against the valve bag 8. Therefore, since the transverse positioning mechanism 3 and the longitudinal positioning mechanism 4 are movable, they need to be fixed after being positioned at a suitable position. The transverse positioning mechanism 3 and the longitudinal positioning mechanism 4 also include fasteners 61. Positioning holes 62 are provided at both ends of the horizontal positioning plate 6. The positioning holes 62 are provided along the short side direction of the horizontal positioning plate 6. A positioning hole is provided on the operating table 1. The fasteners 61 are fixed in the positioning hole after passing through the positioning hole 62.

[0032] Specifically, the fastener 61 includes a screw and a washer head nut threadedly connected to the screw. The screw passes through the positioning hole groove 62 and the positioning hole in sequence. The washer head nut is fixed above the positioning hole groove 62. The positioning hole groove 62 is a strip-shaped hole groove.

[0033] Since the valve bag 8 is relatively thin, if the cutting knife 22 directly cuts the valve bag 8, after the valve port is cut out, the cutting knife 22 is likely to damage the operating table 1. Therefore, in order to prevent the cutting knife 22 from directly contacting the operating table 1, a pad 21 is fixed on the operating table 1 directly below the cutting mechanism 2, and a positioning groove is provided on the pad 21 directly below the cutting knife 22. The pad 21 can buffer the impact and contact between the cutting knife 22 and the operating table 1. In addition, the positioning groove can also help locate the falling position of the cutting knife 22, so as to facilitate the adjustment of the valve port position of the valve bag 8.

[0034] After the valve bag 8 moves to the bottom of the cutting mechanism 2, when the cutting mechanism 2 cuts the valve port position of the valve bag 8, since the valve bag 8 is light, the vibration of the cutting knife 22 can easily cause the valve bag 8 to move, resulting in inaccurate positioning, so it is necessary to set a fixing mechanism 7 to fix the already positioned valve bag 8. The fixing mechanism 7 is used to fix the valve bag 8, and the fixing mechanism 7 is fixed on the operating table 1 close to the other long side of the valve bag 8, and the fixing mechanism 7 is parallel to the longitudinal positioning mechanism 4.

[0035] like Figure 4 As shown, the fixing mechanism 7 includes a pin shaft 71, a pressure plate 72 and two fixing blocks 73. The fixing block 73 is fixedly mounted on the operating table 1. The pin shaft 71 passes through the end of the long side of one side of the pressure plate 72. Both ends of the pin shaft 71 are respectively fixed on the two fixing blocks 73. The pressure plate 72 is movably connected to the pin shaft 71, and the pressure plate 72 can rotate around the pin shaft 71.

[0036] The usage process of this embodiment:

[0037] Flip the pressing plate 72 to reveal the placement position of the valve bag 8, adjust the position of the transverse positioning mechanism 3, loosen the nut, move the horizontal positioning plate 6 of the transverse positioning mechanism 3 to a suitable position, and then tighten the nut to fix the transverse positioning mechanism 3 on the operating table 1, and make the side where the valve port of the valve bag 8 is located against the vertical positioning plate 5 of the transverse positioning mechanism 3. Align the valve port position of the valve bag 8 with the positioning groove on the pad 21, and then adjust the horizontal positioning plate 6 of the longitudinal positioning mechanism 4 to a suitable position, so that the positioning hole groove 62 of the horizontal positioning plate 6 moves along the nut, and after the vertical positioning plate 5 moves to abut against the long side of the valve bag 8, tighten the nut of the longitudinal positioning mechanism 4 to fix the longitudinal positioning mechanism 4 on the operating table 1.

[0038] At this time, after the vertical positioning plate 5 of the horizontal positioning mechanism 3 and the vertical positioning plate 5 of the longitudinal positioning mechanism 4 are both against the valve bag 8, the pressing plate 72 is turned over, and the pressing plate 72 rotates along the pin shaft 71 to press the valve bag 8 to fix the valve bag 8, and then the cutting mechanism 2 is started to cut the valve port position of the valve bag 8. After the cutting is completed, the pressing plate 72 is opened to take out the valve bag 8.

[0039] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A valve opening cutting and positioning structure for a valve bag, characterized in that: The invention comprises a cutting mechanism (2) arranged on an operating table (1), a transverse positioning mechanism (3) for positioning the side where the valve port of the valve bag (8) is located, and a longitudinal positioning mechanism (4) for positioning the long side of the valve bag (8), wherein the side where the valve port of the valve bag (8) is located is adjacent to the long side of the valve bag (8), the transverse positioning mechanism (3) and the longitudinal positioning mechanism (4) are both movably mounted on the operating table (1), and the mounting directions of the transverse positioning mechanism (3) and the longitudinal positioning mechanism (4) are perpendicular to each other.

2. The valve opening cutting and positioning structure of a valve bag according to claim 1, characterized in that: The transverse positioning mechanism (3) and the longitudinal positioning mechanism (4) both comprise a vertical positioning plate (5) and a horizontal positioning plate (6); the horizontal positioning plate (6) is movably mounted on the operating table (1); and the vertical positioning plate (5) is vertically fixed to the long side of the horizontal positioning plate (6) perpendicular to the plane where the operating table (1) is located.

3. The valve opening cutting and positioning structure of a valve bag according to claim 2, characterized in that: The transverse positioning mechanism (3) and the longitudinal positioning mechanism (4) further comprise a fastener (61). Positioning hole grooves (62) are provided at both ends of the horizontal positioning plate (6). The positioning hole grooves (62) are provided along the short side direction of the horizontal positioning plate (6). A positioning hole is provided on the operating table (1). The fastener (61) passes through the positioning hole groove (62) and is fixed in the positioning hole.

4. The valve opening cutting and positioning structure of a valve bag according to claim 3, characterized in that: The fastener (61) comprises a screw and a washer head nut threadedly connected to the screw, the screw passes through the positioning hole groove (62) and the positioning hole in sequence, and the washer head nut is fixed above the positioning hole groove (62).

5. The valve opening cutting and positioning structure of a valve bag according to claim 2, characterized in that: The vertical positioning plate (5) and the horizontal positioning plate (6) are welded into an L-shape, and a reinforcing plate (63) is welded at the welding point between the vertical positioning plate (5) and the horizontal positioning plate (6).

6. The valve opening cutting and positioning structure of a valve bag according to claim 1, characterized in that: A backing plate (21) is fixed on the operating table (1) directly below the cutting mechanism (2), and a positioning groove is provided on the backing plate (21) directly below the cutting knife (22).

7. The valve opening cutting and positioning structure of a valve bag according to claim 1, characterized in that: It also includes a fixing mechanism (7) for fixing the valve bag (8), wherein the fixing mechanism (7) is fixed on the operating table (1) close to the other long side of the valve bag (8), and the fixing mechanism (7) is parallel to the longitudinal positioning mechanism (4).

8. The valve opening cutting and positioning structure of a valve bag according to claim 7, characterized in that: The fixing mechanism (7) comprises a pin shaft (71), a pressure plate (72) and two fixing blocks (73); the fixing blocks (73) are fixedly mounted on the operating table (1); the pin shaft (71) passes through the end of a long side of the pressure plate (72); both ends of the pin shaft (71) are respectively fixed on the two fixing blocks (73); the pressure plate (72) is movably connected to the pin shaft (71); and the pressure plate (72) can rotate around the pin shaft (71).

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